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2011| November-December | Volume 59 | Issue 6
Online since
October 19, 2011
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ORIGINAL ARTICLES
Prognostic factors for vision outcome after surgical repair of open globe injuries
Rupesh Agrawal, Girish Rao, Rishikesh Naigaonkar, Xiaoling Ou, Satish Desai
November-December 2011, 59(6):465-470
DOI
:10.4103/0301-4738.86314
PMID
:22011491
Purpose:
To evaluate the factors influencing final visual outcome after surgical repair of open globe injuries.
Materials and Methods:
The study was carried out at a tertiary referral eye care center in Central India. In this retrospective study, case records of 669 patients with open globe injuries were analyzed. Different preoperative variables were correlated with the final visual outcome. Exclusion criteria were patients with less than four months follow up, previous ocular surgery, presence of intraocular foreign body or endophthalmitis at the time of presentation. Using statistical tests, the prognostic factors for vision outcome following surgical repair of open globe injuries were studied.
Results:
Based on the Spearman's Rho correlation analysis, following factors were found to be significantly associated with the final visual acuity at univariate level: age (
P
<0.001), preoperative visual acuity (
P
=0.045), mode of injury (
P
=0.001), and time lag between the injury and surgery (
P
=0.003). None of the other clinical factors have statistically significant correlation with final visual acuity. On multivariate analysis using binary logistic regression, only age, mode of injury and the time lag between injury and surgery achieved statistically significant results.
Conclusion:
In the current study, elapsed time between the injury and surgery, age of the patient, preoperative visual acuity and mode of injury were found to be adversely affecting the final visual outcome. Recognizing these factors prior to surgical intervention or intraoperatively can help the surgeon in evidence-based counseling of the trauma victim and family.
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BRIEF COMMUNICATIONS
Natamycin in the treatment of keratomycosis: Correlation of treatment outcome and
in vitro
susceptibility of fungal isolates
Linu Pradhan, Savitri Sharma, Suma Nalamada, Srikant K Sahu, Sujata Das, Prashant Garg
November-December 2011, 59(6):512-514
DOI
:10.4103/0301-4738.86328
PMID
:22011503
In this study, 60 fungal isolates from 60 patients with fungal keratitis were tested
in vitro
for their susceptibility to natamycin and the mean minimum inhibitory concentrations of natamycin (MICn) were correlated with clinical outcome. The mean MICn for various groups of fungi from patients with either early (<10 days) or late (≥10 days) presentation was correlated with the outcome.
Aspergillus flavus
showed resistance to natamycin with a high mean MICn (>16 μg/ml). While the clinical response in all patients with early
A. flavus
keratitis was good it was poor in late cases (5/8 patients, 62.5%).
Fusarium
species,
Acremonium
species and dematiaceous fungi were sensitive with low mean MICn (
Fusarium
: 5.7-7.2 μg/ml,
Acremonium
: 5.7-6.8 μg/ml, dematiaceous: (1.6-4 μg/ml). However, 46.6% (7/15) patients in
Fusarium
and 57.1% (4/7) in
Acremonium
group needed keratoplasty. We conclude that despite susceptibility of most fungal species causing keratitis to natamycin, the treatment outcome is poor in advanced fungal keratitis.
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ORIGINAL ARTICLES
Nine years' review on preseptal and orbital cellulitis and emergence of community-acquired methicillin-resistant
Staphylococus aureus
in a tertiary hospital in India
Datta G Pandian, Ramesh K Babu, A Chaitra, A Anjali, Vasudev A Rao, Renuka Srinivasan
November-December 2011, 59(6):431-435
DOI
:10.4103/0301-4738.86309
PMID
:22011486
Context:
Preseptal cellulitis is the commonest orbital disease which frequently needs to be differentiated from orbital cellulitis. Prompt diagnosis and treatment with appropriate antibiotics can prevent vision loss and life-threatening complications of orbital cellulitis.
Aims:
To describe the clinical profile of cases with preseptal and orbital cellulitis admitted to a tertiary care hospital during a period of nine years. The causative organisms and the clinical outcome were analyzed.
Settings and Design
: Retrospective descriptive case study done in a tertiary care hospital in South India.
Material and Methods:
The in-patient records of patients with preseptal and orbital cellulitis were reviewed from 1998 to 2006. The factors reviewed included ocular findings aiding in the distinction of the two clinical conditions, the duration of symptoms, the duration of hospital stay, microbiological culture report of pus or wound swab, blood culture, drugs used for treatment, the response to therapy and complications.
Statistical Analysis Used:
Descriptive analysis.
Results:
One hundred and ten cases, 77 patients with preseptal cellulitis and 33 patients with orbital cellulitis were reviewed. Five percent of children and 21% of adults presented with cutaneous anthrax contributing to preseptal cellulitis. Thirty-nine percent cases with orbital cellulitis were caused by methicillin-resistant
Staphylococcus aureus
(MRSA).
Conclusions:
This study has helped in identifying organisms which cause orbital infections, especially community-acquired MRSA. It indicates the need for modifying our empirical antimicrobial therapy, especially in orbital cellulitis.
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Management of diplopia in patients with blowout fractures
Osman Melih Ceylan, Yusuf Uysal, Fatih Mehmet Mutlu, Kemal Tuncer, Halil Ibrahim Altinsoy
November-December 2011, 59(6):461-464
DOI
:10.4103/0301-4738.86313
PMID
:22011490
Purpose:
To report the management outcomes of diplopia in patients with blowout fracture.
Materials and Methods:
Data for 39 patients with diplopia due to orbital blowout fracture were analyzed retrospectively. The inferior wall alone was involved in 22 (56.4%) patients, medial wall alone was involved in 14 (35.8%) patients, and the medial and inferior walls were involved in three (7.6%) patients. Each fracture was reconstructed with a Medpore
®
implant. Strabismus surgery or prism correction was performed in required patients for the management of persistent diplopia. Mean postoperative follow up was 6.5 months.
Results:
Twenty-three (58.9%) patients with diplopia underwent surgical repair of blowout fracture. Diplopia was eliminated in 17 (73.9%) patients following orbital wall surgery. Of the 23 patients, three (7.6%) patients required prism glasses and another three (7.6%) patients required strabismus surgery for persistent diplopia. In four (10.2%) patients, strabismus surgery was performed without fracture repair. Twelve patients (30.7%) with negative forced duction test results were followed up without surgery.
Conclusions:
In our study, diplopia resolved in 30.7% of patients without surgery and 69.2% of patients with diplopia required surgical intervention. Primary gaze diplopia was eliminated in 73.9% of patients through orbital wall repair. The most frequently employed secondary surgery was adjustable inferior rectus recession and <17.8% of patients required additional strabismus surgery.
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Evaluation of intrastromal corneal ring segments for treatment of post-LASIK ectasia patients with a mechanical implantation technique
Zeki Tunc, Firat Helvacioglu, Sadik Sencan
November-December 2011, 59(6):437-443
DOI
:10.4103/0301-4738.86310
PMID
:22011487
Aim:
To evaluate the clinical outcomes of Keraring segment implantation in patients with post- laser-assisted
in situ
keratomileusis (LASIK) ectasia, using a mechanical implantation technique.
Materials and
Methods:
Twelve eyes of 10 patients with post-LASIK ectasia were enrolled. Intracorneal ring segments (ICRS) were implanted after dissection of the tunnel using Tunc's specially designed dissector under suction. A complete ophthalmic examination was performed, including uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), spherical equivalent, keratometric (K) readings, inferosuperior asymmetry index (ISAI), and ultrasound pachymetry. All 3, 6, and 12-month follow-ups were completed, and statistical analysis was performed.
Results:
The mean preoperative UDVA for all eyes was 1.28 ± 0.59 logMAR. At 12 months, the mean UDVA was 0.36 ± 0.19 logarithm of the Minimum Angle of Resolution (logMAR) (
P=
0.002), and the mean preoperative CDVA was 0.58 ± 0.3 logMAR, which improved to 0.15 ± 0.12 (
P=
0.002) at 1 year. There was a significant reduction in cylindrical refractive and spherical equivalent refractive error from -5.29 ± 2.47 diopters (D) and -5.54 ± 5.04 D preoperatively to -1.47 ± 0.71 D and -0.74 ± 1.07 D (
P=
0.001,
P=
0.002), respectively, at 1 year. In the same period, the mean K- readings improved from 47.93 ± 4.84 D to 40.87 ± 2.36 D (
P=
0.002), and the mean ISAI improved from 5.34 ± 3.05 to 2.37 ± 1.68 (
P=
0.003). No significant changes in mean central corneal thickness were observed postoperatively. There were no major complications during or after surgery.
Conclusion:
ICRS implantation using a unique mechanical dissection technique is a safe and effective treatment for post-LASIK ectasia. All parameters showed improvement at 1-year follow-up.
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Structural sequelae and refractive outcome 1 year after laser treatment for type 1 prethreshold retinopathy of prematurity in Asian Indian eyes
Deeksha Katoch, Gaurav Sanghi, Mangat R Dogra, Nikhil Beke, Amod Gupta
November-December 2011, 59(6):423-426
DOI
:10.4103/0301-4738.86306
PMID
:22011484
Aim
: The aim was to study the structural sequelae and refractive outcome after laser treatment for Type 1 prethreshold retinopathy of prematurity (ROP) in Asian Indian eyes.
Materials and Methods:
A retrospective chart review of infants with Type 1 prethreshold ROP (defined according to the Early Treatment for Retinopathy of Prematurity study) undergoing laser treatment at a tertiary center between January 2004 and December 2008 was done. The 1-year outcome of infants was analyzed.
Results:
Sixty-nine eyes of 36 infants were included. The mean birth weight was 1121.69 ± 254.81 g and the gestational age was 28.99 ± 2.03 weeks. Sixty-five eyes (94.2%) had zone 2 and 4 (5.8%) had zone 1 disease. Forty-four (63.77%) eyes had stage 2 ROP with plus disease and 25 (36.23%) eyes had prethreshold (fewer than five contiguous or eight cumulative clock hours) stage 3 ROP with plus disease. None of the eyes developed retinal structural sequelae. On cycloplegic retinoscopy, 59.4% eyes had nonsignificant hyperopia [spherical equivalent (SE) ≤ 4 D], 14.5% eyes had no refractive error (SE 0 D), 24.7% eyes had low myopia (SE < 5 D), and 1.4% eyes had high myopia (SE > 5.0 D). Eyes developing myopia were associated with a greater number of clock hours of ROP, greater number of laser spots used, and a longer time to disease regression
.
Two infants (5.6%) had esotropia and one (2.8%) had exotropia.
Conclusion:
Asian Indian infants treated for Type 1 prethreshold ROP did not develop retinal structural sequelae. Myopia was seen in nearly one-fourth of the eyes.The risk factors for myopia were a greater number of clock hours of ROP, greater number of laser spots, and a longer time to regression of ROP.
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REVIEW ARTICLE
Pseudophakic monovision is an important surgical approach to being spectacle-free
JianHe Xiao, CaiHui Jiang, MaoNian Zhang
November-December 2011, 59(6):481-485
DOI
:10.4103/0301-4738.86318
PMID
:22011494
There are few studies on pseudophakic monovision even though it is widely applied. We reviewed the published literature on pseudophakic monovision. Surgeons select patients who not only have a strong desire to be free of glasses after surgery, but also fully understand monovision design and its drawbacks. However, other criteria adopted for pseudophakic monovision are very different. Both traditional monovision and cross monovision are used in pseudophakic monovision, and the target binocular anisometropia ranges from -1.0 D to -2.75 D. Postoperative results were acceptable in every study and most patients were satisfied, with vision being improved and presbyopia corrected. Complications were decreased stereopsis, contrast sensitivity, and visual fields, similar to other types of monovision. The term "pseudophakic monovision" should include more than just monocular intraocular lens implantation in two eyes, and further studies are required.
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BRIEF COMMUNICATIONS
Cupped disc with normal intraocular pressure: The long road to avoid misdiagnosis
Nikhil S Choudhari, Aditya Neog, Vimal Fudnawala, Ronnie George
November-December 2011, 59(6):491-497
DOI
:10.4103/0301-4738.86320
PMID
:22011496
We present a series of six patients who had been receiving treatment for normal tension glaucoma (NTG; five patients) or primary open angle glaucoma (one patient). All of them were found to have optic neuropathy secondary to compression of the anterior visual pathway. Even though uncommon, compression of the anterior visual pathway is an important differential diagnosis of NTG. Diagnosis of NTG should be by exclusion. Here the possible causes of misdiagnosis are discussed. We present an approach to distinguish glaucomatous from nonglaucomatous optic neuropathy. The article also emphasizes how important it is for the clinicians to consider the total clinical picture, and not merely the optic disc morphology, to avoid the mismanagement of glaucoma, especially the NTG.
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ORIGINAL ARTICLES
Prevailing clinical practices regarding screening for retinopathy of prematurity among pediatricians in India: A pilot survey
Saurabh Dileep Patwardhan, Rajvardhan Azad, Varun Gogia, Parijat Chandra, Shikha Gupta
November-December 2011, 59(6):427-430
DOI
:10.4103/0301-4738.86307
PMID
:22011485
Aims:
To evaluate the prevailing practices for proper screening and referral scheme among Indian pediatricians for retinopathy of prematurity (ROP).
Materials and Methods:
Pediatricians registered with Indian Academy of Pediatrics from six states of India were selected randomly and were telephonically interviewed in accordance with a preformed questionnaire which comprised of questions regarding demographic factors, number of premature children seen per month, awareness and referral scheme to ophthalmologist; responses thus obtained were analyzed.
Results:
Hundred percent knowledge about ROP and need for screening in premature babies was observed among the respondents. However, only 135 (58%) pediatricians always referred for ROP screening, 19 (8%) referred only sometimes and 80 (34%) did not refer at all. Consistent referral protocols taking into account all plausible risk factors for ROP were followed by only 25% of those who always referred. Major deterrent in ROP screening was perceived as non-availability of trained ophthalmologists.
Conclusions:
Only 14.5% of total pediatricians contacted were following international recommendations for ROP referral. Screening for ROP remains dismal as observed in this pilot survey as a consequence of non-availability of trained ophthalmologists as well as inconsistent screening guidelines.
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354
BRIEF COMMUNICATIONS
Bilateral macular holes in X-linked retinoschisis: Now the spectrum is wider
Manoj Gautam, NS Muralidhar, Hemanth Murthy
November-December 2011, 59(6):507-509
DOI
:10.4103/0301-4738.86326
PMID
:22011501
Bilateral occurrence of macular hole in X-linked retinoschisis is an extremely rare event. Spectral domain optical coherence tomography (OCT) findings revealed that formation of a macular hole is secondary to the retinoschisis process alone. Bilateral macular holes should be added to the spectrum of X-linked retinoschisis variations and the retinoschisis process alone should be accounted for their formation.
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Optimal dosage of cyclopentolate 1% for cycloplegic refraction in hypermetropes with brown irides
Kanwar Mohan, Ashok Sharma
November-December 2011, 59(6):514-516
DOI
:10.4103/0301-4738.86329
PMID
:22011504
To find the optimal dosage of cyclopentolate 1% for cycloplegic refraction in hypermetropes with brown irides, we investigated the difference in cycloplegic auto-refractions obtained after one, two, and three instillations in the same patient. The mean hypermetropia found after three instillations was statistically significantly more compared to that found after one instillation. There was no statistically significant difference in the mean hypermetropia between two and three instillations. There was no significant effect of gender, age, and the presence and type of horizontal deviation. These observations suggest that two drops of cyclopentolate 1% 10 min apart are sufficient for cycloplegic refraction in hypermetropes.
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ORIGINAL ARTICLES
Ability of spectral domain optical coherence tomography peripapillary retinal nerve fiber layer thickness measurements to identify early glaucoma
Tarannum Mansoori, Kalluri Viswanath, Nagalla Balakrishna
November-December 2011, 59(6):455-459
DOI
:10.4103/0301-4738.86312
PMID
:22011489
Purpose
: To evaluate the ability of spectral domain optical coherence tomography (OCT) peripapillary retinal nerve fiber layer thickness (RNFLT) parameters to distinguish normal eyes from those with early glaucoma in Asian Indian eyes.
Design
: Observational cross-sectional study.
Materials and Methods
: One hundred and seventy eight eyes (83 glaucoma patients and 95 age matched healthy subjects) of subjects more than 40 years of age were included in the study. All subjects underwent RNFLT measurement with spectral OCT/ scanning laser ophthalmoscope (SLO) after dilatation. Sensitivity, specificity and area under the receiving operating characteristic curve (AROC) were calculated for various OCT peripapillary RNFL parameters.
Results:
The mean RNFLT in healthy subjects and patients with early glaucoma were 105.7 ± 5.1 μm and 90.7 ± 7.5 μm, respectively. The largest AROC was found for 12 o'clock- hour (0.98), average (0.96) and superior quadrant RNFLT (0.9). When target specificity was set at ≥ 90% and ≥ 80%, the parameters with highest sensitivity were 12 o'clock -hour (91.6%), average RNFLT (85.3%) and 12 o' clock- hour (96.8 %), average RNFLT (94.7%) respectively.
Conclusion
: Our study showed good ability of spectral OCT/ SLO to differentiate normal eyes from patients with early glaucoma and hence it may serve as an useful adjunct for early diagnosis of glaucoma.
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3,625
415
BRIEF COMMUNICATIONS
Restrictive extraocular myopathy: A presenting feature of acromegaly
Steven Heireman, Christophe Delaey, Ilse Claerhout, Christian E Decock
November-December 2011, 59(6):517-519
DOI
:10.4103/0301-4738.86330
PMID
:22011505
A 45-year-old man presented with binocular diplopia in primary gaze for 1 year. Orthoptic evaluation showed 10-prism diopter right eye hypotropia and 6-prism diopter right eye esotropia. The elevation and abduction of the right eye were mechanically restricted. This was associated with systemic features suggestive of acromegaly. Magnetic resonance imaging (MRI) of the brain demonstrated a pituitary macroadenoma. An elevated serum insulin-like growth factor I level and the failure of growth hormone suppression after an oral glucose load biochemically confirmed the diagnosis of acromegaly. Computed tomography (CT) of the orbit demonstrated bilateral symmetrical enlargement of the medial rectus and inferior rectus muscle bellies. All tests regarding Graves-Basedow disease were negative. Although rare, diplopia due to a restrictive extraocular myopathy could be the presenting symptom of acromegaly.
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Pars plana vitrectomy with posterior iris claw implantation for posteriorly dislocated nucleus and intraocular lens
Kishor B Patil, Padmanabhan Meleth, M Prabhu Shanker
November-December 2011, 59(6):497-500
DOI
:10.4103/0301-4738.86321
PMID
:22011497
We evaluated the safety and efficacy of pars plana vitrectomy (PPV) with primary posterior iris claw intraocular lens (IOL) implantation in cases of posterior dislocation of nucleus and IOL without capsular support. This was a retrospective interventional case series. Fifteen eyes underwent PPV with primary posterior iris claw IOL implantation performed by a single vitreoretinal surgeon. The main outcome measures were changes in best corrected visual acuity and anterior and posterior segment complications. A total of 15 eyes were included in this study. Eight had nucleus drop, three had IOL drop during cataract surgery and four had traumatic posterior dislocation of lens. The final postoperative best corrected visual acuity was 20/60 or better in 11 patients. This procedure is a viable option in achieving good functional visual acuity in eyes without capsular support.
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Occult orbito-cranial penetrating injury by pencil: Role of beta tracer protein as a marker for cerebrospinal fluid leakage
Akash D Shah, Christian Decock
November-December 2011, 59(6):505-507
DOI
:10.4103/0301-4738.86325
PMID
:22011500
Orbito-cranial foreign bodies present a treacherous situation that can escape detection. The only evidence of these foreign bodies may be the entry wound in the form of a small lid laceration. A two-year-old boy presented with right upper lid laceration following a fall two hours back. Analysis of the fluid around the wound revealed a beta-tracer protein (beta-TP) value of 33.5 mg/l suggestive of cerebrospinal fluid (CSF). Three-dimensional computed tomography (CT) scan revealed a foreign body measuring 4.2 cm x 0.8 cm passing from the orbital roof to the frontal lobe. The foreign body tract was explored through the eyelid laceration and a broken pencil was removed followed by dural patch graft. The patient developed no ocular or intracranial complications. Beta-TP, a highly specific marker of CSF is routinely used in screening patients of neurosurgery and otolaryngology with CSF leaks, however, its use has never been reported in ophthalmic literature based on an online PubMed search.
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ORIGINAL ARTICLES
Retrospective analysis of the risk factors for developing phacomorphic glaucoma
Jacky W Y Lee, Jimmy S M Lai, Robert F Lam, Billy K T Wong, Doris W F Yick, Raymond K K Tse
November-December 2011, 59(6):471-474
DOI
:10.4103/0301-4738.86316
PMID
:22011492
Aim
: To determine the risk factors for developing phacomorphic glaucoma in eyes with mature cataracts.
Materials and Methods
: This is a case-control study comprising of 90 eyes with phacomorphic glaucoma and 90 age- and sex-matched control eyes with mature cataracts without phacomorphic glaucoma. Patients with pre-existing glaucoma, previous intraocular surgery and /or absence of documented axial lengths were excluded from this study. Binary logistic regression analysis of the variables, axial length and anterior chamber depth, was performed. Anterior chamber depth of the contralateral eye was used as a proxy measure of the pre-phacomorphic state in the eye with phacomorphic glaucoma as majority of them first presented to our center during the phacomorphic attack without prior measurements of the pre-phacomorphic ACD or lens thickness; therefore, their anterior chamber depth would not be representative of their pre-phacomorphic state. Axial length of 23.7 mm was selected as a cut-off for dichotomized logistic regression based on the local population mean from published demographic data.
Results
: The mean age was 73.1 ± 10.2 years. All phacomorphic and control eyes were ethnic Chinese. The mean presenting intraocular pressures were 49.5 ± 11.8 mmHg and 16.7 ± 1.7 mmHg in the phacomorphic and control eyes respectively (
P
< 0.0001), whilst the median Snellen best corrected visual acuity were light perception and hand movement in the phacomorphic and control eyes respectively. Eyes with phacomorphic glaucoma had shorter axial length of 23.1 ± 0.9 mm median when compared with that of control eyes, 23.7 ± 1.5 mm (
P
= 0.0006). Eyes with AL ≤ 23.7 mm were 4.3 times as likely to develop phacomorphic glaucoma when compared with AL > 23.7 mm (
P
= 0.003).
Conclusion
: Axial length less than ≤ 23.7 mm was a risk factor for developing phacomorphic glaucoma. Eyes with AL shorter than the population mean were 4.3 times as likely to develop phacomorphic glaucoma compared with eyes with longer than average AL. In an area where phacomorphic glaucoma is prevalent and medical resources are limited, patients with AL shorter than their population mean may be considered for earlier elective cataract extraction as a preventive measure.
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COMMUNITY EYE CARE
Spectrum of visual impairment among urban female school students of Surat
Mausumi Basu, Palash Das, Ranabir Pal, Sumit Kar, Vikas K Desai, Abhay Kavishwar
November-December 2011, 59(6):475-479
DOI
:10.4103/0301-4738.86317
PMID
:22011493
Aim
: Eye morbidities with or without symptoms delineate a significant morbidity among adolescent schoolgirls in India. The study was undertaken to assess the extent of visual impairment and ocular morbidity to identify influencing factors and the impact on scholastic performance.
Materials and Methods
: A population-based cross-sectional study was undertaken among 3002 urban girl students of Surat in Gujarat, India. Overall prevalence of refractive error was found to be 15.22%; myopia affected 91.47%, hyperopia 4.60%, and astigmatism 0.04%. The prevalence of myopia and astigmatism was more in higher age groups, while hyperopia was more in lower age groups; even students with good vision reported ophthalmic symptoms. Of all spectacle users, in 29.73% cases the eyesight was not found to be with the best possible corrections. Refractive error was observed to be higher among the general caste (50.98%) and among Muslims (54.05%). Still, among those with problems of eyesight, 75.93% students had good academic performance. Associated ocular morbidity was noted in 20.35% participants along with the refractive error.
Conclusion
: This study highlighted the load of eye morbidities of adolescent Indian urban girls.
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362
BRIEF COMMUNICATIONS
Spectral domain optical coherence tomography and microperimetry in foveal hypoplasia
Swakshyar Saumya Pal, Laxmi Gella, Tarun Sharma, Rajiv Raman
November-December 2011, 59(6):503-505
DOI
:10.4103/0301-4738.86324
PMID
:22011499
A case of foveal hypoplasia associated with ocular albinism with anatomic and functional changes by various techniques using spectral domain optical coherence tomography (SD-OCT), microperimeter and confocal scanning laser ophthalmoscope is described. This case highlights the importance of microperimeter in detecting the functional abnormalities of vision and SD-OCT in identifying the retinal laminar abnormalities in foveal hypoplasia.
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GUEST EDITORIAL
Use of intravitreal anti-VEGF: Retinopathy of prematurity surgeons' in Hamlet's dilemma?
Rajvardhan Azad
November-December 2011, 59(6):421-422
DOI
:10.4103/0301-4738.86305
PMID
:22011483
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3
2,545
609
LETTERS TO THE EDITOR
Isolated form of congenital bilateral lacrimal gland agenesis
Nedime Sahinoglu, Samuray Tuncer, Nilufer Alparslan, Gonul Peksayar
November-December 2011, 59(6):522-523
DOI
:10.4103/0301-4738.86333
PMID
:22011507
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3
2,128
149
ORIGINAL ARTICLES
Etiology and epidemiological analysis of glaucoma-filtering bleb infections in a tertiary eye care hospital in south India
R Ramakrishnan, M Jayahar Bharathi, Devendra Maheshwari, P M T Mohideen, Mona Khurana, C Shivakumar
November-December 2011, 59(6):445-453
DOI
:10.4103/0301-4738.86311
PMID
:22011488
Purpose
: To evaluate the microbial etiology and associated risk factors among patients with blebitis following trabeculectomy.
Materials and Methods
: A retrospective analysis of all culture-proven blebitis was performed in patients who underwent trabeculectomy between January 2004 and December 2008. A standardized form was filled out for each patient, documenting sociodemographic features and information pertaining to risk factors. Swabbing of the infected bleb surface was performed for all suspected cases and further subjected to microbiological analysis.
Results
: A total of 23 patients with culture-proven blebitis were treated during the study period, with a mean age of 59.2 years (59.2 ± SD: 12.8; range, 30-81 years). Duration of onset was early (≤36 months) in six (26%) cases and late (> 36 months) in 17 (74%) cases with a range between 15 and 144 months (mean, 82.91 months; SD: 41.89). All 23 blebs were located superiorly and of which, 21 (91%) were microcystic avascular, 1 (4%) diffuse avascular, and 1 (4%) vascular flattened. The predominant risk factor identified was bleb leak (35%; 8 of 23) followed by thin bleb (22%; 5 of 23) and blepharitis (17%; 4 of 23). Bleb leaks (100%) were recorded only in patients with late onset (≥ 9 years) of infection (
P<
0.001), while the incidence of ocular surface disease (100%) occurred early (≤3 years) (
P
< 0.001). Use of topical steroids was associated frequently with cases of thin blebs (80%; 4 of 5) (
P
< 0.001), while topical antibiotics showed bleb leaks (88%; 7 of 8) (
P
< 0.001). Coagulase-positive staphylococci were frequently recovered from blebitis with thin blebs (71%; 5 of 7) (
P
= 0.001), Coagulase-negative staphylococci (CoNS) with bleb leak (100%; 8 of 8) (
P<
0.001),
Corynebacterium
with blepharitis (100%; 3 of 3) (
P
= 0.001), and Streptococci with releasable sutures (75%; 3 of 4) (
P
= 0.001).
Conclusion
: Bleb leak is the principal risk factor responsible for late-onset blebitis, while early-onset blebitis could be ascribed to ocular surface diseases. Streptococci were mainly responsible for early onset of infection, while the late onset was due to CoNS.
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BRIEF COMMUNICATIONS
Retinoblastoma in patients with regressed retinopathy of prematurity
Usha Vasu, Suneetha Nithyanandam, Sharon D'Souza, Sripathi Kamath
November-December 2011, 59(6):501-502
DOI
:10.4103/0301-4738.86322
PMID
:22011498
Retinopathy of prematurity (ROP) is a well-known clinical entity in premature babies. We report two patients (1 and 2) with regressed ROP who later presented with retinoblastoma (RB). To the best of our knowledge, there is only one such report in the literature so far. Two unrelated patients 1 and 2, born at 32 weeks gestation were screened for ROP at 34 weeks gestation. This showed Zone II Stage II ROP which regressed by 38 weeks of gestation on follow-up. Both patients were lost to follow-up by 40 weeks of gestation. They presented at four years of age with white reflex in the eye. Patient 1 was found to have unilateral and patient 2 bilateral RB. The occurrence of RB in these patients with regressed ROP is probably coincidental.
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2,337
209
Use of atropine to predict the accommodative component in esotropia with hypermetropia
Mihir Kothari, Florence Manurung, Shalaka Paralkar
November-December 2011, 59(6):487-490
DOI
:10.4103/0301-4738.86319
PMID
:22011495
This cohort study included children with esotropia and hypermetropia of ≥ +2.0 diopters (D). The deviation was measured at presentation, under atropine cycloplegia and 3 months after full refractive correction. Of 44 children with a mean age of 5.2 ± 2.4 years, 25 were males. Eighteen (41%) had fully refractive accommodative esotropia (RAE), 10 (23%) had partial accommodative esotropia (PAE), and 5 (11%) had nonaccommodative esotropia (NAE). Eleven (25%) had convergence excess (CE). Under cycloplegia, all with RAE and RAE with CE had orthotropia. There was no significant change in the deviation in the patients with NAE. The deviation under cycloplegia and that with full refractive correction in PAE and PAE with CE (with +3.0 D addition) were not different. The intraclass correlation coefficient for deviation under cycloplegia and after full refractive correction (+3.0 D addition for CE) was 0.89. It was concluded that ocular deviation under cycloplegia can help to predict the accommodative component in esotropia with hypermetropia.
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6,853
391
Ocular manifestations in the Hutchinson-Gilford progeria syndrome
Shivcharan L Chandravanshi, Ashok Kumar Rawat, Prem Chand Dwivedi, Pankaj Choudhary
November-December 2011, 59(6):509-512
DOI
:10.4103/0301-4738.86327
PMID
:22011502
The Hutchinson-Gilford progeria (HGP) syndrome is an extremely rare genetic condition characterized by an appearance of accelerated aging in children. The word progeria is derived from the Greek word
progeros
meaning 'prematurely old'. It is caused by
de novo
dominant mutation in the
LMNA
gene (gene map locus 1q21.2) and characterized by growth retardation and accelerated degenerative changes of the skin, musculoskeletal and cardiovascular systems. The most common ocular manifestations are prominent eyes, loss of eyebrows and eyelashes, and lagophthalmos. In the present case some additional ocular features such as horizontal narrowing of palpebral fissure, superior sulcus deformity, upper lid retraction, upper lid lag in down gaze, poor pupillary dilatation, were noted. In this case report, a 15-year-old Indian boy with some additional ocular manifestations of the HGP syndrome is described.
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43,129
2,260
EDITORIAL
Pediatric ophthalmology: The oldest ophthalmology subspeciality
S Natarajan
November-December 2011, 59(6):419-420
DOI
:10.4103/0301-4738.86304
PMID
:22011482
[FULL TEXT]
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2
2,861
616
LETTERS TO THE EDITOR
Evaluation of Ahmed glaucoma valve implantation through a needle-generated scleral tunnel in Mexican children with glaucoma
Vandana Dwivedi, Neeraj Pandey
November-December 2011, 59(6):523-523
DOI
:10.4103/0301-4738.86334
PMID
:22011508
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1,597
156
Correlation between ocular parameters and amplitude of accommodation
Fatih C Gundogan, Ahmet Tas, Uzeyir Erdem
November-December 2011, 59(6):521-521
DOI
:10.4103/0301-4738.86331
PMID
:22011506
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1,354
176
Authors' reply
Lekha Mary Abraham, Thomas Kuriakose
November-December 2011, 59(6):521-522
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1,009
110
Authors' reply
Oscar Albis-Donado, Félix Gil-Carrasco, Rafael Romero-Quijada, Ravi Thomas
November-December 2011, 59(6):523-524
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1,223
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Comment on: Cut and paste: A novel method of re-attaching rectus muscles with cyanoacrylate during recessions in strabismus
Abadan K Amitava, Anjum Darakshan
November-December 2011, 59(6):524-525
DOI
:10.4103/0301-4738.86336
PMID
:22011509
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1,189
142