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  Citation statistics : Table of Contents
   2012| May-June  | Volume 60 | Issue 3  
    Online since May 8, 2012

 
 
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BRIEF COMMUNICATIONS
Change in macular thickness in a case of refractory diabetic macular edema with dexamethasone intravitreal implant in comparison to intravitreal bevacizumab: A case report
Ashish Sharma, Rangasamy J Madhusudhan, Vidhya Nadahalli, Shreekant A Damgude, Selva K Sundaramoorthy
May-June 2012, 60(3):234-235
DOI:10.4103/0301-4738.95884  
We report on the significant improvement of central macular thickness in a case of clinically significant macular edema after dexamethasone 0.7 mg sustained-release intravitreal implant (Ozurdex®; Allergan, Inc, Irvine, CA, USA). Patient presented to us with persistent clinically significant macular edema (CSME) in both eyes. Right eye received dexamethasone implant and left eye received two intravitreal bevacizumab injections 1.25 mg/0.05 mL (Avastin®; Genentech Inc., South San Francisco, CA, USA) with an interval of four weeks. After six weeks of follow-up, dexamethasone implant in the right eye showed normal macular thickness whereas persistent macular edema (ME) was found even after second intravitreal bevacizumab injection in the left eye.
  6 3,804 252
AcrySof toric intraocular lens for post-keratoplasty astigmatism
Nishant Gupta, Jagat Ram, Manish Chaudhary
May-June 2012, 60(3):213-215
DOI:10.4103/0301-4738.95875  
We report a 63-year-old male who had undergone left eye optical penetrating keratoplasty for central leucomatous corneal opacity 10 years earlier. The eye had clear donor graft with residual astigmatism of −6.50 diopter cylinder (DC) at 30°. The patient underwent clear corneal phacoemulsification with implantation of +6.0 D spherical equivalent AcrySof SN60T9 intraocular lens (IOL). Postoperatively, at 10 months, the patient had distance corrected visual acuity of 20/30 with −2.00 DC at 20°. AcrySof toric IOL offers an effective treatment option for post-keratoplasty high corneal astigmatism in patients with cataract.
  4 3,945 241
Ivermectin treatment for massive orbital myiasis in an empty socket with concomitant scalp pediculosis
Neelam Puthran, Vidya Hegde, B Anupama, Sheena Andrew
May-June 2012, 60(3):225-227
DOI:10.4103/0301-4738.95880  
We report a rare case of massive orbital myiasis following recent lid injury, occurring in the empty socket of an elderly lady, who had concurrent scalp pediculosis. The orbital myiasis was effectively treated with the broad-spectrum antiparasitic agent, ivermectin, thus precluding the need for an exploratory surgery. Ivermectin was also effective in managing the concurrent scalp pediculosis.
  4 5,589 160
COMMUNITY EYE CARE
Screening for visual impairment: Outcome among schoolchildren in a rural area of Delhi
Neeti Rustagi, Yogesh Uppal, Devender K Taneja
May-June 2012, 60(3):203-206
DOI:10.4103/0301-4738.95872  
Background: Uncorrected refractive errors are the main cause of vision impairment in school-aged children. The current study focuses on the effectiveness of school eye screening in correcting refractive errors. Objectives: 1. To study the magnitude of visual impairment among school children. 2. To assess the compliance of students for refraction testing, procurement and use of spectacles. Materials and Methods: An intervention study was conducted in schools of the north- west district of Delhi, in the rural field practice area of a medical college. Students studying in five government schools in the field practice area were chosen as the study subjects. Results: Out of 1123 students enrolled, 1075 (95.7%) students were screened for refractive errors. Low vision (visual acuity < 20/60) in the better eye was observed in 31 (2.9%) children and blindness (visual acuity <20/200) in 10 (0.9%) children. Compliance with referral for refraction was very low as only 51 (41.5%) out of 123 students could be tested for refraction. Out of 48 students, 34 (70.8%) procured spectacles from family resources but its regular use was found among only 10 (29.4%) students. The poor compliance among students stems out of various myths and perceptions regarding use of spectacles prevalent in the community. Conclusion: Refractive error is an important cause of avoidable blindness among rural school children. Behavior change communication among rural masses by spreading awareness about eye health and conducting operational research at school and community level to involve parent's teachers associations and senior students to motivate students for use of spectacles may improve utilization of existing eye health services in rural areas.
  4 3,703 404
ORIGINAL ARTICLES
Effects of hydroquinone on retinal and vascular cells in vitro
Ashish Sharma, Jayaprakash A Patil, Ana L Gramajo, Gail M Seigel, Baruch D Kuppermann, Cristina M Kenney
May-June 2012, 60(3):189-193
DOI:10.4103/0301-4738.95869  
Aim: To explore the molecular pathophysiology that might explain the epidemiologic association between cigarette smoke and age-related macular degeneration (AMD) by examining the effects of hydroquinone (HQ), a toxic compound present in high concentration in cigarette smoke-related tar, on human retinal pigment epithelial cells (ARPE-19), rat retinal neurosensory cells (R-28), and human microvascular endothelial cells (HMVEC). Materials and Methods: ARPE-19, R-28, and HMVEC were treated for 24 h with four different concentrations of HQ (500 μM, 200 μM, 100 μM, 50 μM). Cell viability, caspase-3/7 activation, DNA laddering patterns, and lactate dehydrogenase (LDH) levels were analyzed. Results: At 50 μM HQ, R-28 cells showed a significant decrease in cell viability compared with the dimethyl sulfoxide (DMSO)-treated controls. At the 100-500 μM concentrations, all three cell lines showed significant cell death (P < 0.001). In the ARPE-19, R-28, and HMVEC cultures, the caspase-3/7 activities were not increased at any of the HQ concentration. Conclusion: Our findings suggest that the mechanism of cell death in all three cell lines was through non-apoptotic pathway. In addition, neuroretinal R-28 cells were more sensitive to HQ than the ARPE-19 and HMVEC cultures.
  4 3,430 178
BRIEF COMMUNICATIONS
Oral cyclosporine therapy for refractory severe vernal keratoconjunctivitis
Nikhil S Gokhale, Rohini Samant, Vishnu Sharma
May-June 2012, 60(3):220-223
DOI:10.4103/0301-4738.95878  
We report the success of oral cyclosporine therapy in a patient with severe vision-threatening vernal keratoconjunctivitis. A child presented with severe allergy which was not controlled with topical steroids, cyclosporine and mast cell stabilizers. Oral steroids were required repeatedly to suppress inflammation. Child showed a dramatic improvement and stabilization with oral cyclosporine therapy. Oral cyclosporine therapy can be tried in severe vision-threatening allergy refractory to conventional therapy.
  3 5,101 315
CURRENT OPHTHALMOLOGY
Ranibizumab for choroidal neovascular membrane in a rare case of Bietti's crystalline dystrophy: A case report
Kasinathan Nachiappan, Tandava Krishnan, Jagadeesan Madhavan
May-June 2012, 60(3):207-209
DOI:10.4103/0301-4738.95873  
We report a rare case of Bietti's crystalline dystrophy presenting with choroidal neovascular membrane (CNVM) which was treated with three injections of intravitreal ranibizumab. The CNVM underwent scarring after the injections with stabilization of visual acuity at a follow-up period of 12 months suggesting that intravitreal ranibizumab may have a role in the management of CNVM in these rare cases.
  3 4,820 158
BRIEF COMMUNICATIONS
A case of endophthalmitis associated with limbal relaxing incision
Aravind Haripriya, Taranum S Syeda
May-June 2012, 60(3):223-225
DOI:10.4103/0301-4738.95879  
Limbal relaxing incisions (LRIs) are considered a relatively safe procedure with rapid stabilization and absence of infectious complications. Do we need to readdress this last impression? We report a case of nocardia endophthalmitis associated with an exudate at the site of an LRI in a patient who underwent routine cataract surgery. This case, to the best of our knowledge, is the first report of its kind, stressing the need for a cautious approach to the adoption of this method of astigmatic correction.
  2 2,901 134
A sphenoid sinus mucocele simulating as retro bulbar optic neuritis
Anoop Kishore Gupta, Vimla Menon, Pradeep Sharma, Rohit Saxena, Senthil Kumaran
May-June 2012, 60(3):216-218
DOI:10.4103/0301-4738.95876  
A 25-year-old male presented with complaints of sudden diminution of vision with pain on eye movement in the left eye which was diagnosed clinically as retro bulbar optic neuritis. However, magnetic resonance imaging (MRI) showed lesion consistent with sphenoid sinus mucocele. Early surgical removal of mucocele led to complete recovery of vision, contrast and visual field. A high index of suspicion is necessary for intracranial lesions in all cases of retro bulbar neuritis, especially those with atypical symptoms.
  2 3,939 139
In vivo sectional imaging of the retinal periphery using conventional optical coherence tomography systems
Abhishek Kothari, V Narendran, VR Saravanan
May-June 2012, 60(3):235-239
DOI:10.4103/0301-4738.95885  
Optical coherence tomography (OCT) has transformed macular disease practices. This report describes the use of conventional OCT systems for peripheral retinal imaging. Thirty-six eyes with peripheral retinal pathology underwent imaging with conventional OCT systems. In vivo sectional imaging of lattice degeneration, snail-track degeneration, and paving-stone degeneration was performed. Differences were noted between phenotypes of lattice degeneration. Several findings previously unreported in histopathology studies were encountered. Certain anatomic features were seen that could conceivably explain clinical and intraoperative behavior of peripheral lesions. Peripheral OCT imaging helped elucidate clinically ambiguous situations such as retinal breaks, subclinical retinal detachment, retinoschisis, choroidal nevus, and metastasis. Limitations of such scanning included end-gaze nystagmus and far peripheral lesions. This first of its kind study demonstrates the feasibility of peripheral retinal OCT imaging and expands the spectrum of indications for which OCT scanning may be clinically useful.
  2 5,731 172
ORIGINAL ARTICLES
Single stage surgery for Blepharophimosis syndrome
Kasturi Bhattacharjee, Harsha Bhattacharjee, Ganesh Kuri, Zeenat Tajmin Shah, Nilutparna Deori
May-June 2012, 60(3):195-201
DOI:10.4103/0301-4738.95870  
Purpose: The purpose of this study was to report the functional and cosmetic outcome of single stage surgical procedure for correction of the classic components of Blepharophimosis syndrome. Materials and Methods: We report a retrospective case file review of 11 patients with Blepharophimosis syndrome operated between July 2004 and April 2008. Each patient had undergone the correction of epicanthus inversus, telecanthus, palpebral phimosis, and bilateral ptosis as a single-stage surgical procedure. Patients were examined and photographed before and after surgery. The mean follow-up was 3 years (range 2-6 years). Results: A total of 11 patients (8 males, 3 females) with a mean age of 9 years (range 6--22 years) were reviewed. The surgical outcome was assessed both functionally and cosmetically. The mean preoperative visual acuity was 0.729 ± 0.316 SD and the mean postoperative visual acuity was 0.856 ± 0.277 SD (P <0.0428). There was a statistically significant decrease of astigmatism following ptosis correction (P<0.05), improvement of telecanthus (P<0.0001) in terms of IICD (inner intercanthal distance), and HPFL (horizontal palpebral fissure length) (P=0.019) along with improvement of the superior visual field. The mean preoperative and postoperative IICD was 3±0.33 SD and 2.418 ± 0.189 SD, respectively. There was also a significant postoperative improvement of ptosis (P< 0.01), as measured by IPFH (vertical interpalpebral fissure height). All the patients had a stable functional and cosmetic result after a mean follow-up period of 3 years. Conclusion: Single-stage surgical correction of the classic anomalies of Blepharophimosis syndrome provides stable and successful long-term results.
  2 8,338 353
Scanning electron microscopy of the trabecular meshwork: Understanding the pathogenesis of primary angle closure glaucoma
Ramanjit Sihota, Amita Goyal, Jasbir Kaur, Viney Gupta, Tapas C Nag
May-June 2012, 60(3):183-188
DOI:10.4103/0301-4738.95868  
Purpose: To study ultrastructural changes of the trabecular meshwork in acute and chronic primary angle closure glaucoma (PACG) and primary open angle glaucoma (POAG) eyes by scanning electron microscopy. Materials and Methods: Twenty-one trabecular meshwork surgical specimens from consecutive glaucomatous eyes after a trabeculectomy and five postmortem corneoscleral specimens were fixed immediately in Karnovsky solution. The tissues were washed in 0.1 M phosphate buffer saline, post-fixed in 1% osmium tetraoxide, dehydrated in acetone series (30-100%), dried and mounted. Results: Normal trabecular tissue showed well-defined, thin, cylindrical uveal trabecular beams with many large spaces, overlying flatter corneoscleral beams and numerous smaller spaces. In acute PACG eyes, the trabecular meshwork showed grossly swollen, irregular trabecular endothelial cells with intercellular and occasional basal separation with few spaces. Numerous activated macrophages, leucocytes and amorphous debris were present. Chronic PACG eyes had a few, thickened posterior uveal trabecular beams visible. A homogenous deposit covered the anterior uveal trabeculae and spaces. Converging, fan-shaped trabecular beam configuration corresponded to gonioscopic areas of peripheral anterior synechiae. In POAG eyes, anterior uveal trabecular beams were thin and strap-like, while those posteriorly were wide, with a homogenous deposit covering and bridging intertrabecular spaces, especially posteriorly. Underlying corneoscleral trabecular layers and spaces were visualized in some areas. Conclusions: In acute PACG a marked edema of the endothelium probably contributes for the acute and marked intraocular pressure (IOP) elevation. Chronically raised IOP in chronic PACG and POAG probably results, at least in part, from decreased aqueous outflow secondary to widening and fusion of adjacent trabecular beams, together with the homogenous deposit enmeshing trabecular beams and spaces.
  2 5,407 323
BRIEF COMMUNICATIONS
Giant epidermal cyst of the tarsal plate
Mohana Majumdar, Rekha Khandelwal, Anne Wilkinson
May-June 2012, 60(3):211-213
DOI:10.4103/0301-4738.95874  
A 35-year-old male patient presented with a right upper eyelid mass with mechanical ptosis. The patient gave no history of trauma or surgery. On examination, there was a huge cystic mass fixed to the tarsal plate. Excisional biopsy with tarsectomy was done. Histopathology sections demonstrated a keratin-filled cyst arising from the tarsus. A thorough Pubmed search did not reveal an epidermal cyst of the tarsal plate of this size which was successfully managed. The incision was made in such a way that postoperative ptosis would be avoided. Excess skin was removed during the surgery.
  1 4,052 160
Descemet's tear due to injector cartridge tip deformity
Partha Biswas, Subhrangshu Sengupta, Ajoy Paul, Lav Kochgaway, Sayantan Biswas
May-June 2012, 60(3):218-220
DOI:10.4103/0301-4738.95877  
Foldable intraocular lens (IOL) implantation using an injector system through 2.8-mm clear corneal incision following phacoemulsification provides excellent speedy postoperative recovery. In our reported case, a Sensar AR40e IOL (Abbott Medical Optics, USA) was loaded into Emerald C cartridge, outside the view of the operating microscope, by the first assistant. The surgeon proceeded with the IOL injection through a 2.8-mm clear corneal incision after uneventful phacoemulsification, immediately following which he noted a Descemet's tear with a rolled out flap of about 2 mm near the incision site. Gross downward beaking of the bevelled anterior end of the cartridge was subsequently noticed upon examination under the microscope. We suggest careful preoperative microscopic inspection of all instruments and devices entering the patient's eyes to ensure maximum safety to the patient.
  1 3,033 144
Intravitreal bevacizumab for treatment of choroidal neovascularization associated with osteogenesis imperfecta
Pukhraj Rishi, Ekta Rishi, Anusha Venkatraman
May-June 2012, 60(3):229-231
DOI:10.4103/0301-4738.95882  
A 12-year-old girl, diagnosed of osteogenesis imperfecta, presented with sudden visual loss in the left eye. Investigations revealed an active choroidal neovascular membrane. She underwent treatment with intravitreal Bevacizumab (1.25 mg/0.05 ml). Follow-up at 1 month revealed the development of lacquer crack running through the macula, underlying the fovea. The patient received two re-treatments at 1-month intervals, following which the choroidal neovascularization (CNV) regressed completely. However, further progression of lacquer cracks was noted. At the last follow-up, 6 months following the last injection, the fundus remained stable and vision was maintained at 20/200. Considering the natural history of the disease and the increased risk of rupture of the Bruch's membrane in such eyes, the possible complication of a lacquer crack developing must be borne in mind, before initiating treatment.
  1 3,764 117
ORIGINAL ARTICLES
Prevalence of plateau iris configuration in primary angle closure glaucoma using ultrasound biomicroscopy in the Indian population
Gaurav Kumar, Shveta Jindal Bali, Anita Panda, Amit Sobti, Tanuj Dada
May-June 2012, 60(3):175-178
DOI:10.4103/0301-4738.95865  
Purpose: To report the prevalence of plateau iris in patients with primary angle closure glaucoma (PACG), in North India. Materials and Methods: The patients with PACG, attending the glaucoma services at a tertiary care center in North India were included in the study. All patients had undergone Nd-YAG laser peripheral iridotomy at least four weeks prior to inclusion in the study. Four weeks prior to inclusion in the study, none of the patients had used pilocarpine. Ultrasound Biomicroscopy (UBM) images were qualitatively evaluated and plateau iris configuration was defined in an eye if the following criteria were fulfilled in two or more quadrants: anteriorly directed ciliary process supporting the peripheral iris, steep rise of iris root from its point of insertion followed by a downward angulation from the corneoscleral wall, absent ciliary sulcus, and iridotrabecular contact in the same quadrant. Results: One hundred and one eyes were included in the study. There were 63 (62.4%) females and 38 (37.6%) males. The mean age of the patients was 57.8 ± 9.5 years (range: 42 to 78 years). The mean axial length in the study population was 22.2 ± 1.1 mm. The mean spherical equivalent refraction was 0.06 ± 1.12 D. The mean intraocular pressure was 18.5 ± 4.7 mmHg (range: 12 - 24 mmHg). Twenty-nine (28.7%) subjects were diagnosed with plateau iris on the basis of above-defined criteria. Of the 29 eyes, 18 (62.1%) subjects had plateau iris in two quadrants, nine (31.03%) in three quadrants, and two (6.8%) had this configuration in all the four quadrants. Conclusions: Approximately 30% of the eyes with PACG had plateau iris on UBM. Plateau iris was very often the cause for residual angle closure following laser peripheral iridotomy in Indian eyes with PACG.
  1 4,586 541
BOOK REVIEW
Postgraduate Ophthalmology
David Taylor
May-June 2012, 60(3):247-247
  - 2,737 263
BRIEF COMMUNICATIONS
Boston keratoprosthesis and Ahmed glaucoma valve for visual rehabilitation in congenital anterior staphyloma
Bhaskar Srinivasan, Nikhil Shreeram Choudhari, Aditya Neog, Supriya Latka, Geetha K Iyer
May-June 2012, 60(3):232-233
DOI:10.4103/0301-4738.95883  
Congenital anterior staphyloma entails grave visual prognosis. The majority of reported patients have undergone enucleation. We report a promising result of staphylectomy with implantation of a keratoprosthesis and a glaucoma drainage device in a seven-month-old child with a large, congenital anterior staphyloma.
  - 2,985 167
Multiple live subconjunctival dipetalonema: Report of a case
Manuel John, Sely Mary Mathew, Vinod Sebastian, Jyotirmoy Biswas, M Raman
May-June 2012, 60(3):228-229
DOI:10.4103/0301-4738.95881  
Parasitic infestations of the eye have been reported since centuries, affecting various parts of the eye. Some are subtle, coexisting with vision, while many others damage and destroy, in part or totally, the gift of sight. This report describes a patient with live subconjunctival dipetalonema infestation of the right eye, with 22 parasites removed live in one sitting from one eye.
  - 2,984 161
EDITORIAL
Introduction of photo essay
S Natarajan
May-June 2012, 60(3):171-173
DOI:10.4103/0301-4738.95864  
  - 5,078 387
LETTERS TO THE EDITOR
Unusual markings on an intraocular lens postoperatively
Anjali Mehta
May-June 2012, 60(3):241-242
DOI:10.4103/0301-4738.95887  
  - 2,784 121
Microalbuminuria and hemoglobin risk predictors of eye diseases - Comment
S Vivekanandan
May-June 2012, 60(3):242-242
DOI:10.4103/0301-4738.95888  
  - 2,577 105
Author's reply
Suneetha Nithyanandam, Jyothi Idiculla, VK Ajoy Mohan
May-June 2012, 60(3):243-243
  - 2,296 71
Authors' reply
M Jayahar Bharathi, R Ramakrishnan, C Shivakumar, R Meenakshi
May-June 2012, 60(3):243-244
  - 2,552 75
Retained lens fragment in the anterior chamber five years after uncomplicated phacoemulsification with posterior chamber intraocular lens implantation
Manotosh Ray, Sue Wei Ho, Min-En Nga
May-June 2012, 60(3):244-245
DOI:10.4103/0301-4738.95891  
  - 3,089 125
ORIGINAL ARTICLES
Fifteen-year trends in indications for enucleation from a tertiary care center in South India
Sabyasachi Sengupta, Subramanian Krishnakumar, Jyotirmay Biswas, Lingam Gopal, Vikas Khetan
May-June 2012, 60(3):179-182
DOI:10.4103/0301-4738.95867  
Aim: To analyze the trends in clinicopathologic indications for enucleations over a 15-year period. Materials and Methods: Clinicopathologic details of all eyes that underwent enucleation from January 1996 to December 2010 were drawn up from a computerized database. The study was divided into three periods of 5 years each and comparison tables for each cause of enucleation during these periods were generated. Chi-square test was used to compare proportions. Results: Out of a total 1467 enucleations performed during the study period, 693 (46%) were attributable to retinoblastoma, 189 (12.5%) to uveal melanoma, 228 (15%) to trauma, and 149 (10%) to phthisis bulbi. Intraocular tumors accounted for more than 63% of all enucleations performed. Over the three time periods, proportion of enucleations secondary to retinoblastoma increased from 38% in the 1 st period to 58% in the 3 rd period (P < 0.001). Enucleations for trauma showed statistically significant reduction in trends over the three periods (24% in the 1 st period vs. 4.4% in the 3 rd period, P < 0.001). Similar trends were also seen in the proportion of enucleations due to intractable glaucoma and chronic uveitis. The absolute number of enucleations secondary to retinoblastoma out of the total cases seen during the study period did not change over the three periods (range 51-60%). Conclusion: Intraocular tumors were the commonest indications for enucleation in our patient population despite the availability of globe-conserving treatments such as chemotherapy and radioactive plaques. We observed increasing trends in the proportion of enucleations due to retinoblastoma and reduction of enucleations secondary to trauma, chronic uveitis, and glaucoma.
  - 3,899 281