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A 32-year-old man with a clear and compact graft following a penetrating keratoplasty 6 years back, developed an episode of acute graft rejection, coinciding with the COVID-19 disease. Subsequent to the infection with the novel coronavirus, he developed symptoms of acute graft rejection concurrent with the development of respiratory distress and peak systemic symptoms. This was the phase of cytokine storm as evidenced by the raised inflammatory markers in his blood tests. Such a case of acute corneal graft rejection coinciding with SARS-CoV-2 infection has been reported only once in the literature and this unique association needs to be researched further.

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The peripheral retina is affected in a variety of retinal disorders. Traditional fundus cameras capture only a part of the fundus even when montaging techniques are used. Ultra-wide field imaging enables us to delve into the retinal periphery in greater detail. It not only facilitates assessing color images of the fundus, but also fluorescein angiography, indocyanine green angiography, fundus autofluorescence, and red and green free images. In this review, a literature search using the keywords “ultra-widefield imaging”, “widefield imaging”, and “peripheral retinal imaging” in English and non-English languages was done and the relevant articles were included. Ultra-wide field imaging has made new observations in the normal population as well as in eyes with retinal disorders including vascular diseases, degenerative diseases, uveitis, age-related macular degeneration, retinal and choroidal tumors and hereditary retinal dystrophies. This review aims to describe the utility of ultra-wide field imaging in various retinal disorders.

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A 42-year-old male patient presented with profound impairment of vision in both eyes, just as he was recovering from COVID-19. A known diabetic and hypertensive, he suffered from COVID-19 pneumonia further complicated by ARDS, septicaemia and acute kidney injury. His vision on presentation was finger counting close to face bilaterally with multiple, yellowish lesions at the posterior pole. Based on the clinical findings and previous blood culture report, it was diagnosed as candida retinitis and treated with oral and intravitreal anti-fungals. The lesions were regressing at follow-up. This is a post COVID-19 presumed candida retinitis case report.

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COVID-19 is a respiratory virus, which has affected various organ systems as well. Here we report a neuro-ophthalmic presentation of pituitary apoplexy under the setting of COVID-19 infection in a middle-aged man who presented to ophthalmic emergency with sudden bilateral loss of vision along with a history of fever past 10 days. There was sluggishly reacting pupils and RT-PCR for COVID was positive. Imaging pointed the diagnosis as pituitary macroadenoma with apopexy. In view of pandemic situation, patient was given symptomatic treatment as per the protocols and stabilized. Vision also showed improvement to some extent and the patient is awaiting neurosurgery

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Purpose: To compare image resolution and depth between the microscope versus intracameral illumination images during 3D heads-up cataract surgery. Methods: We collected 25 consecutive patients who had cataract surgery using the 3D viewing system. Based on bright, contrast, visibility, and color balance, the digital images (RGB color and three monochromes) extracted at the same point of the procedures were compared between the two illuminations. Results: Contrast values of green and blue channels except for red channel and visibility values of all three channels were higher in the intracameral illumination images than in the microscope images (P < 0.001, t-test). Color balance values of both green/red and blue/red were higher in the intracameral illumination images than in the microscope images (P < 0.001, t-test). Conclusion: The digital images in the digitally assisted cataract surgery were enhanced by using the intracameral illumination. Considering the contrast and color balance in the 3D cataract surgery, the intracameral illumination may be better than the microscope illumination.

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Ocular manifestations of COVID-19 are still being studied. Posterior segment involvement in viral entities is either direct viral involvement or a delayed immune response to the antigen. A 22-year-old woman presented with history of perceiving absolute inferior scotoma in the right eye for 4 days and history of fever and sore throat 10 days ago. Fundus examination revealed disc edema and vessel tortuosity. Humphreys Field Analyzer confirmed inferior field defect and Optical Coherence Tomography showed superior, nasal and inferior retinal nerve fiber layer thickening in the right eye. Patient was positive for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by reverse transcription polymerase chain reaction (RT-PCR) testing. Patient received three doses of injection methylprednisolone over 3 days. There was subjective resolution of scotoma reported 3 weeks posttreatment. We bring forward the first reported case of parainfectious optic neuritis associated with COVID-19.

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The posterior lid margin, where the mucocutaneous junction (MCJ) between the eyelid skin and tarsal conjunctiva is located, plays a critical role in maintaining the homeostasis of the ocular surface. Posterior migration of the MCJ leads to lid-margin keratinization (LMK), which has a domino effect on the delicate balance of the ocular surface microenvironment. This occurs most commonly following Stevens-Johnson syndrome/toxic epidermal necrolysis and is not known to regress spontaneously or with medical therapy. Over time, LMK causes blink-related chronic inflammatory damage to the corneal surface which may have blinding consequences. Lid-margin mucous membrane grafting (MMG) is the only definitive therapy for LMK. Timely MMG can significantly alter the natural course of the disease and not only preserve but even improve vision in affected eyes. Literature searches were conducted on PubMed, using the keywords “mucous membrane grafts,” “lid margin keratinization,” “Stevens-Johnson syndrome,” “toxic epidermal necrolysis,” “lid related keratopathy,” and “lid wiper epitheliopathy”. This review, which is a blend of evidence and experience, attempts to describe the indications, timing, surgical technique, postoperative regimen, and clinical outcomes of MMG for LMK. The review also covers the possible complications and pearls on how they can be effectively managed, including how suboptimal cosmetic outcomes can be avoided. The authors hope that this review will aid ophthalmologists, including cornea and oculoplasty specialists, to learn and perform this vision-saving surgery better, with the aim of helping their patients with chronic ocular surface disorders, relieving their suffering, and improving their quality of life.

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Purpose: The aim of this study was to report results of macular hole closure, visual benefit and longitudinal changes in foveal architecture over 1 year following macular hole surgery with retinal massage. Methods: Records of patients with full thickness macular hole (FTMH) with minimum basal diameter of 550 μ who underwent vitrectomy, internal limiting membrane (ILM) peeling and retinal massage were drawn up. Retinal massage was performed after dye assisted ILM peeling, using a 27G flute needle with a long and soft silicone tip under air in a centripetal direction around the FTMH. At the end, 10% C₃F₈ gas was used as tamponade. The foveal contour at 1 year follow up was recorded based on its cross sectional appearance on OCT and was classified into U, V and irregular types of closure as previously described. Results: Forty-one eyes of 41 patients with a mean age of 70.4 ± 6.9 years were included. The mean preoperative vision was 0.99 ± 0.07 logMAR and mean maximum basal diameter of the FTMH was 835 ± 208 μ. Macular hole closure was seen in all patients at 1-month follow up. The BCVA improved to 0.5 ± 0.1 log MAR at 6 months (P < 0.001) and then stabilized. The U shaped closure was the commonest pattern (n = 22, 54%), followed by V-shaped closure (n = 16, 39%) while irregular closure was seen in 3 eyes (7%). Conclusion: Retinal massage after ILM peeling is a very simple, and as yet under-utilized manoeuvre that may improve hole closure rates and lead to potentially greater improvement in vision compared to existing techniques for large holes.

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Purpose: To ascertain ophthalmologist's perceptions about webinars as a method of continued medical education during the COVID-19 pandemic. Methods: In a cross-sectional study, a 21-question survey was circulated using digital media platform to approximately 1400 ophthalmologists in India between 16^th August 2020 to 31^st August 2020. The questionnaire focussed on the quality and usefulness of webinars based on the Bloom's taxonomy. The responses (on 4- or 5-point Likert scale) were analyzed among three professional groups- ophthalmologists in-training, consultants in public sector, and private practitioners. Results: 393 ophthalmologists participated in the survey, with a response rate of 28%. The mean age was 34.6 ± 9.7 years, and males constituted 49.6% (199/393) of the respondents. Forty-seven percent of the respondents perceived the quality of webinars as good or excellent (185/393), 72.8% reported knowledge gain from webinars (286/393), and 63.9% felt that webinars are important in clinical practice and should continue post-COVID-19 pandemic (251/393), with distinct responses among the professional groups. The drawbacks perceived were overt number of webinars (371; 94.4%), confusion regarding which webinars to attend (313; 79.6%), repetition of the information (296; 75.3%), limited opportunity for participant interaction (146; 37.2%) and disparate weightage to the core disciplines of Ophthalmology. Conclusion: Most respondents had favorable perceptions of Ophthalmology webinars happening during the COVID-19 pandemic. However, there is need for improvisation in the volume of webinars, target-audience-based delivery, and participant interaction to add value to this new dimension of teaching-learning.

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Recent decade has seen a shift in the causes of childhood blinding diseases from anterior segment to retinal disease in both developed and developing countries. The common retinal disorders are retinopathy of prematurity and vitreoretinal infections in neonates, congenital anomalies in infants, and vascular retinopathies including type 1 diabetes, tumors, and inherited retinal diseases in children (up to 12 years). Retinal imaging helps in diagnosis, management, follow up and prognostication in all these disorders. These imaging modalities include fundus photography, fluorescein angiography, ultrasonography, retinal vascular and structural studies, and electrodiagnosis. Over the decades there has been tremendous advances both in design (compact, multifunctional, tele-consult capable) and technology (wide- and ultra-wide field and noninvasive retinal angiography). These new advances have application in most of the pediatric retinal diseases though at most times the designs of new devices have remained confined to use in adults. Poor patient cooperation and insufficient attention span in children demand careful crafting of the devices. The newer attempts of hand-held retinal diagnostic devices are welcome additions in this direction. While much has been done, there is still much to do in the coming years. One of the compelling and immediate needs is the pediatric version of optical coherence tomography angiography. These needs and demands would increase many folds in future. A sound policy could be the simultaneous development of adult and pediatric version of all ophthalmic diagnostic devices, coupled with capacity building of trained medical personnel.

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Purpose: Pterygium is a triangular fibrovascular subepithelial ingrowth of degenerative bulbar conjunctival tissue over the cornea. It is now considered to be a result of uncontrolled cellular proliferation as overexpression of p53 protein and Ki-67 nuclear protein was found in the epithelium. This study was done to find the expression of p53 and Ki-67 with the severity and duration of the pterygium to explain the etiopathogenesis. Methods: Data were analyzed from 43 Indian participants of all age groups. All patients were divided according to the severity of pterygium (mild, moderate, and severe groups) and according to the duration of pterygium (<4 years and >4 years). The samples were studied by immunohistochemistry by using antibodies against p53 and Ki-67 proteins considering >5% expression as significant. Results: Of 43 cases, p53 and Ki-67 expression were positive in 33 cases. In mild, moderate, and severe cases p53 positivity was 33.3%, 78.4%, 100%, respectively. P53 expression increased with duration, 79.3% positive in <4 years, and 92.9% positive in >4 years. With increasing severity of pterygium, mild, moderate, and severe cases, Ki-67 positivity was 66.7%, 78.37%, 66.7%, respectively. Ki-67 expression with duration, 79.3% positive in <4 years, and 85.7% positive in >4 years of the duration of pterygium with no statistical significance. Conclusion: Our study revealed that with increasing duration and severity of pterygium, p53 expression was observed to be increasing. Ki-67 expression increased with the duration of pterygium but not with the severity.

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Purpose: The optometry profession has experienced massive changes amid lockdown in COVID 19 pandemic. This study gauges the impact of COVID-19 on optometry education and practices in India. Methods: The impact of COVID-19 among key stakeholders of Indian optometry that included educators, students, and practitioners was surveyed. The content validity of the survey tool was achieved through a focused group discussion with experts. Results: Of the 1408 responses, 118 were educators, 845 were students and 445 were practitioners. Post COVID-19 lock-down, a high percentage of students (96%) and educators (94%) were now using online mode of education to learn and teach. The blended learning methods were reported to be used by 81% of educators. Practical skills were the most difficult to teach by educators and to learn by students. Almost a third of the students were concerned about their internships and job opportunities amid the pandemic. Practitioners felt confident in performing routine eye examinations with personal protective equipment (PPE). Telemedicine was found to be adopted by 55% of the private practitioners and 49% of the eye hospitals. Conclusion: The COVID-19 pandemic has provided an opportunity to reform Indian optometry education through blended learning methods. Optometry practices changed and adapted instantly to the new hygiene norms that have raised the standard of care provided to patients. Telemedicine emerged as a mode of providing care by optometrists. Overall, all key stakeholders of optometry in India were found to have adapted well to the sudden changes due to COVID 19 pandemic.

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Purpose: The aim of this study was to report the use and the impact of a point-of-care rapid antigen test (PoC-RAT) at a tertiary eye care facility in facilitating commencement of elective surgeries, contact tracing of exposed health care professionals (HCPs) and ancillary hospital staff, and implementation of back-to-work (BTW) policy for them. Methods: Retrospective analysis of subjects undergoing PoC-RAT for COVID-19 infection at a tertiary level dedicated eye care facility. Decision making with regard to commencement of elective surgeries post COVID-19 related discontinuation of services, contact tracing of HCPs and ancillary hospital staff exposed to known COVID-19 cases and implementation of back-to-work policy for all staff based upon the results of PoC-RAT were studied. Results: A total of 311 subjects (224 patients and 87 hospital staff) were tested. Overall positivity rate was around 7%. Asymptomatic patients who were screened preoperatively had a lower positivity rate at around 3% compared to the staff (who were either known contacts or were symptomatic) at around 17%. Contact tracing found three-quarters of the staff at low risk and only one quarter at medium or high risk. Among patients, 97% of those followed up for at least 2 weeks after the test remained healthy. For staff, this was around 65%. Conclusion: Based on our preliminary results, we suggest that PoC-RAT may be considered routinely for indication-based preoperative screening of asymptomatic patients, and for on-campus screening, contact tracing and implementation of BTW policies for HCPs and ancillary hospital staff at a tertiary level eye care facility.

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Purpose: The purpose of this study is to evaluate the post-lockdown challenges during Coronavirus disease 2019 (COVID-19) pandemic amongst the ophthalmologists in India. Methods: An online survey was sent to the practicing ophthalmologists across India. Data were collected from the responding ophthalmologists and analysed using Medcalc 16.4 software. Results: A total of 794 responses were obtained. Most respondents (51%) were in the age group 30–50 years and were in independent practice (40.05%). Almost three-fourth of ophthalmologists resumed their surgical services after a gap of more than a month post-lockdown. Almost a third of the respondents had significant reduction in their surgical workload during this period. Significant fear of contracting COVID-19 infection in the operation theatres was reported while moderate difficulty was found in procuring protective gear during immediate post-national lockdown period. Conclusion: The pandemic has changed the ophthalmic practice significantly, with patient and staff safety becoming areas of major concern. Both financial and psychological concerns affecting healthcare workers need addressing for continued patient care.

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Purpose: Obtaining a better understanding of the pathogenesis of primary angle-closure disease (PACD) still requires studies that provide measurements of anterior and posterior biometric characteristics together and that assess the relationship between them. Methods: In total, 201 eyes were enrolled in this cross-sectional study: 50 normal controls, 49 primary angle-closure suspect (PACS), 38 primary angle closure (PAC), and 64 primary angle-closure glaucoma (PACG) eyes. The anterior and posterior structural features were measured by anterior segment optical coherence tomography and swept-source optical coherence tomography. Results: All PACD groups had smaller anterior chamber depth (ACD), anterior chamber area (ACA), anterior chamber volume (ACV), angle opening distance at 750 μm from the scleral spur (AOD750), trabecular–iris space area at 750 μm from the scleral spur (TISA750), and angle recess area (ARA), as well as a larger lens vault (LV), than controls (all P < 0.001). The PACS and PAC groups had thicker iris thickness at 750 μm from the scleral spur (IT750) than controls (P = 0.017 and P = 0.002, respectively). Choroidal thickness (CT) was not statistically different among normal, PACS, PAC, and PACG eyes. Univariate and multivariate linear regression analysis revealed a significant association between thinner IT750 and increased CT in PACD eyes (P = 0.031, univariate analysis; P = 0.008, multivariate analysis). Conclusion: Thinner iris thickness was associated with increased CT in PACD eyes; however, the underlying mechanism needs further investigation.

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A 28-year-old male presented with three full-thickness stromal wooden foreign bodies vertically oriented in the left cornea. An innovative intracameral approach was used. Paracentesis was done and healon was injected into the anterior chamber. Iris repositor was introduced into the anterior chamber and the area of foreign bodies was pushed up to compress the stroma. The wooden foreign body projected above the corneal surface and were picked up one by one using McPherson forceps. One of the foreign bodies has penetrated through the Descemet's membrane resulting a corneal perforation. A corneal perforation was confirmed by observing egress of the irrigating solution, injected into the anterior chamber through the paracentesis opening. The corneal perforation was sealed with corneal glue. He achieved 6/9 BCVA (OS) at 8 weeks and maintained it during18 months follow-up.

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Purpose: The aim of this study was to report the ocular findings in renal allograft recipients in India. Methods: A cross-sectional, comprehensive ophthalmic evaluation was performed, at least three months postrenal transplant, in 152 renal allograft recipients for the ocular findings. In addition, ocular findings were assessed for an association with the clinical variables like major etiologies of end-stage renal disease, pre-transplant dialysis duration, post-transplant duration, and dosage of immunosuppressive drugs. Results: 72.36% of the recipients (mean age, 38.16 ± 10.04 years) had at least one ocular finding at 3 ± 2.6 years (range, 0.3-14 years), postrenal transplant. Hypertensive retinopathy was the commonest ocular finding followed by posterior subcapsular cataract (20.4%), nuclear sclerosis (19.7%), diabetic retinopathy (15.1%), dry eye (11.2%), allergic conjunctivitis (9.9%), pterygium (6.6%), open-angle glaucoma (3.3%), meibomitis (3.3%), pinguicula (2.6%), chalazion (1.3%), subconjunctival haemorrhage (1.7%), central serous chorioretinopathy (1.7%), healed ocular toxoplasmosis (1.7%), papilledema (1.7%), and dry ARMD (1.7%). In addition, a significant association existed between some of the ocular findings with major aetiologies of ESRD, post-transplant duration, and dosage of immunosuppressive drugs. However, no association existed between the ocular findings and pre-transplant dialysis duration. Conclusion: Ocular findings are seen in 72.36% of the renal transplant recipients with hypertensive retinopathy being the commonest one. Hence, a mandatory regular ophthalmic screening of the recipients is recommended for an early detection and timely intervention to improve the quality of life.

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Purpose: To study the agreement of findings of glaucoma screening between trained vision center (VC) technicians and glaucoma specialists in patients referred from VC to the glaucoma services of a tertiary eye care hospital in south India. Methods: This was a retrospective study comparing the findings of the VC technicians and the specialists of the glaucoma services in the base hospital, in patients referred from 13 VCs between January and June 2019. Medical records of 277 referred patients (out of 533 referrals) who attended the glaucoma clinic were analyzed. Results: Of the 277 patients, 111 (40%) were confirmed having glaucoma, 133 (48%) were suspects, 29 (10.4%) were normal, and four (1.4%) had other pathology. The mean age of the patients was 59.7 ± 13 years and 60.6% were females. There was no statistically significant difference between the mean intraocular pressure (IOP) measured (17 ± 7.2 mmHg at the VC and 18 ± 8.7 mmHg at the clinic, p = 0.16) and the cup-to-disc ratio (CDR) (0.7 ± 0.13 at the VC and 0.6 ± 0.18 at the clinic, p = 0.57). Bland–Altman plots with 95% limits of agreement supported that mean differences were close to zero, and the intraclass correlation coefficient at 95% CI showed good consistency between the measurement of IOP (0.78 [0.74 to 0.81]) and CDR (0.90 [0.88 to 0.92]) at the base hospital and vision center. Conclusion: There is good agreement between the findings of VC technicians and glaucoma specialists. VC technicians can help in detecting glaucoma in the community.

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Purpose: The aim of this study was to study the perception of residency trainers about an optimum residency program. Methods: A survey, using a pre-validated questionnaire, was conducted by the Academic and Research Committee of the All India Ophthalmological Society, in 2019-20 with questions directed to teachers in medical colleges and national board of examination's ophthalmology residency programs on demography, teaching experience, imparting clinical and surgical skills, ideal academic schedule and dissertation in the post-graduate residency program. Results: The response rate in the survey was 47.6%. Valid responses were obtained from 309 residency trainers. Of these, 132 of 309 (42.7%) were females. The mean age was 45.3 ± 9.5 years, range 26-68 years. The trainers believed that on a scale of 0-10, clinical skills teaching should be taught, mean ± SD: slit lamp 9.8 ± 0.7; indirect ophthalmoscopy 9.3 ± 1.3; gonioscopy 9.2 ± 1.5; perimetry 8.9 ± 1.5; OCT 8.4 ± 1.9; applanation tonometry 9.5 ± 1.2 and orthoptic evaluation 8.1 (±1.9). A resident should ideally perform independently surgeries (median, inter-quartile range IQR): SICS 50 (IQR 40-100); phaco 50 (20-60); pterygium excision 20 (10-40); DCR 10 (5-20); chalazion 20 (10-50), trabeculectomy 7 (5-15); strabismus 5 (2-10), LASIK and retinal detachment 0. Ideally there should be four lectures, four seminars, four case presentations, five journal clubs and four wet labs every month. Conclusion: Teachers expected their wards to become competent professionals. There was near unanimity about the content of clinical skills training, non-medical skills and academics, but there was a significant variation on extent of surgical training that should be imparted to the residents.

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Thygeson's superficial punctate keratitis (TSPK) is a chronic disorder with episodes of exacerbations and remissions which span over years to decades. Typical features of the disease include multiple, grayish white, intraepithelial corneal lesions with minimal or no conjunctival involvement. The exact etiopathogenesis of this entity is unknown. However, it may have a genetic association with HLA-DR3, an antigen proved to be associated with immunogenic responses. Treatment of the disease consists of artificial tears, topical corticosteroids, topical cyclosporine, topical tacrolimus, or usage of soft contact lenses. TSPK should be considered as a diagnosis of exclusion in cases of bilateral superficial punctate keratopathy of long duration. Thirteen patients of TSPK were examined during the last 6 years (2014–2019) at our Institute. Visual acuity was 20/20 to 20/30 in majority cases. All patients required lubricants.

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Purpose: The aim of this study was to report the outcome of cataract surgery with different surgical techniques in eyes with coexisting coloboma and to define factors of prognostic importance. Methods: Retrospective case sheet review of patients presenting between January 2016 and December 2018, who underwent cataract surgery in eyes with coexisting coloboma. Results: Of the 3,30,231 cases operated during the study period, 280 eyes of 276 patients had associated colobomatous malformation. The prevalence of coloboma in eyes undergoing cataract surgery was 0.085%. The mean age of the patients was 46.4 years (range 19 -88 years). Phacoemulsification (PE) was performed in 130 eyes (46.4%), manual small incision cataract surgery (M-SICS) was done in 115 eyes (41.1%), and 35 eyes (12.5%) underwent intra capsular cataract extraction. Intra-operative complications were noted in 26 (9%) eyes. Incidence of intra-operative and post-operative complications was comparable between PE and M-SICS groups (p = 0.94). The mean corrected distance visual acuity (CDVA) improved from logMAR 1.71 ± 0.62 to 0.87 ± 0.61 (p = 0.00009). On multivariate analysis, microcornea (p = 0.002), type 1 and 2 coloboma (p < 0.001), and intraoperative complications (p = 0.001) were associated with poor visual outcome. Conclusion: Favorable functional outcomes can be achieved with phacoemulsification in eyes with softer cataract and corneal diameter >8 mm and with M-SICS in eyes with hard cataracts and corneal diameter of 6–8 mm. PE should be considered as the primary choice whenever permissible by the corneal diameter and severity of nuclear sclerosis. Poor functional outcomes were seen in eyes with smaller corneal diameter, extensive chorioretinal coloboma, and intraoperative complications.

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This study aimed to evaluate the intra- and postoperative complications of intraocular lens (IOL) implantation with posterior optic buttonholing (POBH) in children that had undergone phacoemulsification irrigation/aspiration for congenital/developmental cataract and experienced complication of anterior capsulorrhexis extension (ACE). A total of 25 eyes of 21 patients were included in the study. A foldable three-piece IOL was implanted into the bag/ciliary sulcus with primary posterior capsulorrhexis and POBH. The visual acuity improved from 2.12 ± 0.69 log MAR to 1.38 ± 0.49 log MAR at 6 months follow-up. Postoperative complications included heightened postoperative inflammation in three patients and temporary corneal edema in two patients. Only one patient had developed posterior capsular opacification (PCO) at 6 months follow-up with mild tilt, while the rest 24 eyes had no PCO formation and adequate IOL centration. The results of this study indicate that a three-piece foldable IOL implantation with POBH is a feasible option for children who experienced ACE during pediatric cataract surgery, as it results in satisfactory surgical outcomes and very few ocular complications.

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The COVID-19 pandemic has resulted in reduction of patient volumes in Ophthalmology. With only emergency surgical procedures being performed with few elective surgical procedures, surgical volumes are at an all-time low. This has resulted in decreased surgical training opportunities for trainee surgeons. We developed a simple, cost-effective, 3D printed model eye – RetiSurge – for “Dry Lab” vitreoretinal surgery training. The model incorporates a retinal film that can be changed, making it suitable for multiple uses. The RetiSurge model can be used to practice visualization, instrument manipulation and endolaser photocoagulation. RetiSurge can be sterilized by ethylene oxide and is safe for use inside the operating room. RetiSurge is a simple, cost-effective, and reusable model eye for early training in Vitreoretinal surgery.

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Purpose: The evaluation of Herpes Simplex virus-1 (HSV-1) transcript by different investigative methods (qPCR, PCR and IHC) in corneal buttons from suspected viral keratitis patients and the comparison of results with histopathological findings and clinical diagnosis. Methods: Sixty corneal buttons, 30 suspected viral keratitis, and 30 controls (keratoconus and bullous keratopathy) obtained after primary penetrating keratoplasty, were included in the study. All the corneal buttons were subjected to reverse transcriptase quantitative PCR (qPCR) for the detection of latency-associated transcript (LAT) gene, conventional PCR for polymerase (pol) gene, and immunohistochemistry (IHC) for HSV-1 antigen respectively. After obtaining baseline preoperative clinical data, all the patients were followed up for three years. The results obtained were correlated with clinicopathological features and follow-up data. Results: Of the 30 suspected viral keratitis patients there were 6 females and 24 males with mean age 46.5 ± 24.62 years (3-80 yrs). There was a marked male preponderance (80%). HSV-1 LAT transcript was detected in 23% (7/30) corneal buttons by qPCR, HSV-1 DNA in 6.7% (2/30) and HSV-1 antigen in 30% (9/30) cases by conventional PCR and IHC respectively. A statistically significant association was found between qPCR and DNA PCR (P = 0.04). All the 30 control corneas were negative for HSV-1 LAT gene, DNA and antigen. Conclusion: Detection of HSV-1 LAT transcript by qPCR may be superior to HSV-1 DNA PCR (conventional) and IHC, which has low sensitivity. However, the utility of HSV-1 LAT mRNA analysis as a diagnostic modality by qPCR needs to be validated on a larger patient cohort.

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Purpose: To study the characteristics of focal choroidal excavation (FCE) in Indian eyes based on spectral-domain optical coherence tomography (SD-OCT) findings and their association with macular pathologies. Methods: Retrospective study of 26 patients diagnosed with FCE. All patients' clinical and imaging data were reviewed. Results: There were eight females and 18 males aged between 24 and 85 years. FCE was noted in 31 eyes of 26 patients – unilateral in 21 and bilateral in 5. The conforming type was noted in 13 and nonconforming in 19 eyes. The location was extrafoveal in 16 and subfoveal in 15 eyes. The morphology was bowl-shaped in 24, cone-shaped in six eyes, and mixed type in one eye. Associated pathologies were central serous chorioretinopathy in nine eyes, choroidal neovascular membrane in seven eyes, Stargardt's disease in three eyes, Best disease in four eyes, other retinal dystrophies in two eyes, polypoidal choroidal vasculopathy and moderate non-proliferative diabetic retinopathy, each in one eye. The mean FCE width was 1667.2 ± 817.7 μ, mean depth was 95.7 ± 46.4 μ, and the mean choroidal thickness under the FCE was 234.8 ± 85.9 μ. No abnormal choroidal tissue was found under any FCE. Conclusion: FCE is a relatively common entity and frequently associated with macular pathologies. The presence of an FCE did not alter the course or management of these conditions.

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Purpose: To assess patient experience of intravitreal injections using vital-signs, visual-experience, pain-rating and emotional response during intravitreal anti-VEGF injections. Methods: A prospective observational study of patient experience of intravitreal anti-VEGF injections done following metrics were collected pre-injection, during injection, and post-injection: pain assessment using visual analog score, fear-response rating, visual-experience questionnaire, and vital-signs. Results: A total of one-hundred-and-seventy-four patients undergoing intravitreal anti-VEGF injections for retinal pathologies were included in the study. Mean age was 58.8 ± 10.4 years in <5 injection group (n = 133) and 59.02 ± 9.0 years in ≥5 injection group (n = 41) (P = 0.90).During injection, 90.2% of patients in <5 injection group reported moderate or severe pain compared to 78% of patients in ≥5 injection group. In pre and post-injection phases, mild-to-moderate pain was reported in both groups (P = <0.001). Ninety-two (52.9%) patients reported having a mild frightening experience. There was no statistical significance in patients assessment of fear with respect to age, sex, or number of injections. The Systolic Blood Pressure (SBP) during and following injection ((SBP 171.7 ± 21.1,150.8 ± 16.2) procedures was significantly higher in cases with <5 injections when comparing to cases with >5 injections (SBP 159.7 ± 26.4, 143.2 ± 17.0) (P = 0.003), (P = 0.011). DBP, heart rate, pulse rate measurements were similar among patients in all phases of the study. Conclusion: We report a large sample size with comprehensive assessments of the patient experience. Higher pain ratings in the <5 injection group, the increase in the SBP in the pre-and during injection phases, and the overall rating of mild-to-moderate fear during the procedure.

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Purpose: The aim of this study was to determine habitual visual acuity (HVA) in a large urban cohort in western India and identify factors associated with poor HVA. Methods: This was a prospective study conducted over 10 days in September 2018 to assess the HVA in individuals attending a 10-day festival in Western India. Participants who volunteered to undergo vision screening and also filled the questionnaire form pertaining to demographic information including their age, gender, address, income, and educational status were included in this study. HVA was recorded with the distance correction that the participants were wearing when they attended the screening. The study evaluated the prevalence of visual acuity 6/6 or <6/6, 6/12, and 6/18 and the factors associated with lower visual acuity. Results: Of the 6300 participants, 1660 (26.3%) were females. Majority of the participants were from urban background (6084, 96.6%) and were of younger age group (18–40 years––3786, 60.1%; 41–60 years––2187, 34.7%; >60 years––327, 5.2%). HVA was recorded as 6/6 both eyes in 4136 (65.6%), at least 6/12 both eyes in 5691 (90.3%), and at least 6/18 both eyes in 5974 (94.8%) individuals. Only 11 patients (0.17%) had VA worse than 6/60 with only 3 patients (0.003%) having bilateral VA <6/60. Older age, female sex, lower education status, and low annual income were significant risk factors for poor HVA. Conclusion: Poor education, lower income, female gender, and old age are significantly associated with poor HVA even in urban Western India despite relatively easy access to affordable eye care facilities.

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Purpose: To evaluate the outcomes of keratoplasty for xeroderma pigmentosum (XP) performed at a tertiary eye care center. Methods: A retrospective review of medical records of those patients who were clinically diagnosed to have XP (54 eyes of 36 patients) and underwent keratoplasty; either deep anterior lamellar keratoplasty (DALK, four eyes), endothelial keratoplasty (EK, eight eyes), or penetrating keratoplasty (PK, 42 eyes) from 1994 to 2018. Results: The median age at surgery was 20.6 years (interquartile range [IQR], 14.6–27.6 years) and 20 (55.6%) were males. Graft failure occurred in 15 eyes (35.7%) in the PK group and two eyes (50%) in the DALK group; none failed in the EK group. The probability of graft survival in the PK group was 97.2% ± 2.7% at 1 year, 74.0% ± 8.0% at 2 years, and 54.8% ± 11.7% at 5 years. In the PK group, 13 eyes needed antiglaucoma medications, 11 eyes developed graft infiltrate, and 13 eyes needed secondary interventions (cataract surgery, excision biopsy, and tarsorrhaphy). In the EK group, three eyes needed secondary interventions (excision biopsy). Median postoperative endothelial cell density at the last follow-up in the PK group was 1214 cells/mm² (IQR, 623–2277 cells/mm²). Conclusion: Despite the complexities of the ocular surface and adnexal issues in XP, keratoplasty had reasonably good outcomes. More than half of the PK grafts survived 5 years with no failures in the EK group. Regular follow-up and timely management of suture-related infections raised intraocular pressure, and suspicious ocular surface lesions, in addition to solar protection, are important for the success of keratoplasty in these eyes.

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Purpose: The aim of this study was to report the proportion and patterns of eye diseases observed among infants seen at two rural eye care centers in South India. Methods: A retrospective review of case records of infants seen between January 1, 2017 and December 31, 2017 at two rural secondary eye care centers attached to L V Prasad Eye Institute, Hyderabad. Data were collected regarding their demographic profile, the pattern of eye problems observed, management at the facility itself, and need for referrals. Results: During this period, a total of 3092 children were seen. Among them, 141 were infants (4.56%, 71 boys: 70 girls, median age: 8 months). Twenty-five percent of infants were less than 6 months of age. The most common eye problem was congenital nasolacrimal duct obstruction (n = 76, 53.90%), followed by conjunctivitis (n = 33, 23.40%), retinopathy of prematurity (n = 4, 2.84%) and strabismus (n = 3, 2.13%). One case each of congenital cataract and suspected retinoblastoma were identified. Majority of the cases (58.8%) belonged to the oculoplastic and orbital surgery sub-specialty. Sixteen percent of the infants (n = 23) had sight-threatening eye problems. Twenty percent (n = 28) were referred to tertiary care hospital for further management. Conclusion: Profile of eye disease in infants in secondary or rural eye care centers ranged from simple to complex, including sight-threatening diseases. While our study concluded that nearly 4/5^th of these eye problems were simple and could be managed by a well-trained comprehensive ophthalmologist, 20% of these cases required a referral to a tertiary care center.

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Purpose: Our study aimed to evaluate the outcome of contralateral eye (CE) fixation duress squint surgery (FDSS) in third nerve palsy (3^rd NP) with aberrant regeneration and compare the postoperative ptosis correction with preoperative ptosis improvement on adduction. Methods: Patients of 3^rd NP with aberrant regeneration who underwent CE FDSS between December 2012-July 2015 in a tertiary-care eye hospital with a follow-up period of 1-year were retrospectively studied to analyze preoperative and postoperative details. Surgical success was defined as the correction of ptosis within 1 mm of preoperative ptosis improvement during maximal adduction of the affected eye, postoperative alignment ≤10Δ, and resolution of subjective diplopia in primary position. Results: A total of 14 eyes in 14 patients (mean age 23.6 ± 13.6 years) were included. Mean preoperative exotropia and ptosis in primary position in 14 patients was 53.4 ± 20pd and 4.89 ± 2.9 mm, respectively, and mean hypotropia in 6 patients was 23.67 ± 5.89pd. The mean improvement of ptosis on adduction and supraduction in all patients was 4.07 ± 2.64 mm and 2.89 ± 2.22 mm, respectively (P = 0.213). All patients underwent large recession of CE lateral rectus (mean 12.4 ± 2.7 mm), 9 patients underwent CE medial rectus resection/plication (mean 6.0 ± 0.9 mm) and 6 patients underwent CE superior rectus recession (mean 6.6 ± 0.67 mm). Postoperatively, mean ptosis and exotropia correction was 3.7 ± 2.4 mm (P = 0.000) and 15 ± 9.6pd (P = 0.000), respectively, and mean hypotropia was 2.17 ± 4.02pd (P = 0.000). Surgical success was achieved in 6 patients. Postoperative ptosis correction showed strong positive correlation with preoperative improvement of ptosis on adduction (r = 0.87; P = 0.00). Conclusion: Preoperative lid excursion on adduction in 3^rd NP can be regarded as a prognostic sign of the success of CE FDSS which can simultaneously correct both ptosis and squint.

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Purpose: The aim of this study was to compare the performance of Octopus 900(OVF) kinetic module with Goldmann perimeter (GVF) and Humphrey 750i (HVF) perimeters in neuro-ophthalmic disorders. Methods: During this prospective observational cross-sectional study, 17 patients (26 eyes) with neuro-ophthalmic disorders underwent visual field examination on the three perimeters. Field defects on OVF were matched with HVF and GVF for the number of quadrants involved. An unmasked observer, and a masked observer (unaware of the clinical diagnosis) were made to separately diagnose the type of field defects on all three fields for the same patient. The pattern of field defect on OVF was compared with GVF and HVF field defects for both observers. Results: When OVF was compared with HVF and GVF, 88% eyes correctly matched for normal or abnormal visual fields, while quadrant-matching was 80% and 89% respectively. For the unmasked observer, the pattern of field defects on OVF was similar to HVF and GVF in 58% and 65% eyes respectively while for a masked observer, it was 54% and 62%. Central and paracentral scotomas showed unmatched fields when OVF was compared with HVF and GVF. When these patients were excluded, sensitivity of OVF increased to 95%. Conclusion: Clinical correlation aids in better characterisation of a field defect. All 3 perimeters are concurrent in the pattern of field defects for non-central defects. However, the default protocol on OVF may not be enough to demarcate the central and para-central scotomas. Development of a customised protocol for the assessment of central and centrocecal field defects increases the accuracy of OVF.

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Purpose: This study compares the vital parameters and pain experienced during phacoemulsification under peribulbar and topical anesthesia to determine the incidence of OCR. Methods: One hundred six patients are enrolled for phacoemulsification in a prospective and randomized study. Fifty-two patients undergo surgery in a peribulbar block (Group PB) and 54 in topical anesthesia (Group TA). Mean arterial pressure (MAP) and pulse rate are recorded during a preoperative check-up and at four other steps of surgery. Pain experienced during surgery and on a postoperative day, 5, is graded with a verbal analogue scale. OCR defined as a decrease in pulse rate by greater than 20% is calculated. Chi-square test, Fisher's exact test, paired t test and the comparison of means give the statistical analysis. A value of P < 0.05 was taken as significant. Results: MAP readings at baseline versus MAP at other steps of surgery show a trend towards rising with a P value of < 0.05 in both groups. Pulse rate measured at all steps of surgery versus baseline pulse rate in Group TA shows P < 0.05. OCR is present in nine patients in peribulbar block verses eleven patients in topical anesthesia with P value of 0.687. The pain scores using verbal analogue scale were higher in Group TA compared with Group PB with a P < 0.0001. Conclusion: Oculocardiac reflex can occur during phacoemulsification under both peribulbar block and topical anesthesia, and the difference is not significant.

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Purpose: To report the etiology, clinical presentation, and morphology of congenital cataract in a tertiary care center. Methods: It is a prospective cohort study conducted at L V Prasad Eye Institute, Hyderabad. All children with congenital cataract ≤ 12 months of age that required surgical intervention between August 2015 and July 2016 were included in the study. 109 such patients were subjected to meticulous history taking, pedigree charting, ocular, and systemic examination, B-scan, TORCH testing, clinical photographs, pediatrician consult and blood tests, which included serum calcium, serum phosphorous and urine for reducing sugars. Results: The mean age of presentation was 4.1 months (±2.6 months) and both the genders were equally affected (P = 0.49). Eighty-five patients (77.9%) presented with bilateral cataracts while 24 patients had a unilateral presentation (22.1%). The common morphological presentation was either a total or a nuclear cataract, both variants noticed in 47 patients (43.1%). TORCH infections were responsible for a maximum (37 patients, 33.4%) number of cases followed by familial (20 patients, 18%) and developmental anomalies (11 patients, 10.1%) while the total number of idiopathic cases were 24% (27 patients). Eighteen patients (16.5%) had congenital heart defects and the majority (16 patients, 88.9%) of these had positive TORCH titres. Conclusion: Familial cataract and those possibly due to TORCH are still the predominant cause of congenital cataract in this series-highlighting the role of vaccination and preventive measures.

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Purpose: To evaluate the central visual field by microperimetry (MP), in early glaucoma. Methods: Consecutive perimetrically experienced patients with a single nasal step or arcuate scotoma and 14 control eyes underwent MP. Retinal sensitivity on MP was mapped for frequency and depth of loss in the central 10° around fixation. Results: Twenty-one eyes had a single nasal step and 19 eyes with single arcuate scotoma on standard automated perimetry (SAP), with central 10° being normal on 30–2 and 10–2 perimetry. The average mean sensitivity on MP, in glaucomatous and control eyes was 11.8 ± 3.9 dB and 16.6 ± 1.2 dB, respectively, P = 0.0004. The average mean defect on MP-1, in glaucomatous and control eyes was -6.5 ± 2.0 dB and -3.0 ± 1.2 Db, respectively, P = 0.05. The corresponding retinal hemisphere showed significant defects in MP. In eyes with single nasal steps, an absolute scotoma was seen in 14–28% of eyes 8–10° off fixation, moderate to mild defects were seen in 10–52% eyes, and 10% eyes showed involvement up to 4° from the fixation. Eyes with arcuate scotoma had an absolute scotoma on MP in 95% of eyes, 6–10° from fixation, with extension up to 2° from fixation in 21%. In glaucomatous eyes, the normal hemisphere on SAP showed a mild defect on MP in 43%. Control eyes did not show any defect in SAP or MP. Conclusion: A significant loss of central retinal sensitivity is recorded on MP in early glaucomatous neuropathy as compared to SAP. Paramacular absolute defects were seen at 6–10° from fixation.

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Purpose: To compare results of a novel “conjunctival frill/smile incision” on surgically induced astigmatism (SIA) and patient discomfort vs conventional trabeculectomy in the initial postoperative period. Methods: Sixty trabeculectomy cases were subjected to either conjunctival frill incision, performed 1.5–2.0 mm from the limbus (study group) or conventional fornix-based conjunctival flap (control group). Corneal astigmatism and suture-induced discomfort were assessed by keratometry and a self-devised patient questionnaire, respectively. Results: Both groups generated a “with the rule” SIA, which was 1.77 vs 2.42 at 1 week and reduced to 1.27 vs 1.8 in the study vs control group, after removal of sutures – both scleral flap releasable and conjunctival at 1 month. Patient discomfort score revealed enhanced comfort in 37% of patients (study group) vs 17% (control group) during the early postoperative period. After 1 month of surgery, good comfort was regained in all cases. Conclusion: This novel suturing technique results in reduced SIA, patient discomfort during the 1^st month after trabeculectomy.

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We describe the new technique of chandelier-assisted pneumatic retinopexy in repairing rhegmatogenous retinal detachments in a series of young adults. In the operating room, a 25-gauge trocar cannula is inserted at the pars plana 180° across the preoperatively detected retinal break followed by Chandelier light insertion, which is used in globe fixation and rotation. The retinal periphery is reexamined using scleral indentation and chandelier light endoillumination. Transconjunctival cryopexy is performed around the break followed by paracentesis and pure sulfur hexafluoride gas injection. Twelve eyes of 12 patients were repaired. Their mean (±SD) age was 29.4 (±3.4) years and preoperative corrected distance visual acuity (CDVA) was 0.36 (±0.32). Nine eyes had 1 break while 3 eyes had 2 breaks within 1 clock hour. Mean duration of operation was 11.7 (±1.8) min. No patient experienced major intraoperative complications, but one patient required reoperation. Mean CDVA 6 months postoperatively was 0.63 (± 0.21) (p < 0.05).

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