Abstract:
AIM:To evaluate the prevalence and causes of low vision and blindness in an urban south Indian population. SETTINGS AND DESIGN:Population-based cross-sectional study. Exactly 3850 subjects aged 40 years and above from Chennai city were examined at a dedicated facility in the base hospital. MATERIALS AND METHODS:All subjects had a complete ophthalmic examination that included best-corrected visual acuity. Low vision and blindness were defined using World Health Organization (WHO) criteria. The influence of age, gender, literacy, and occupation was assessed using multiple logistic regression. STATISTICAL ANALYSIS:Chi-square test, t-test, and multivariate analysis were used. RESULTS:Of the 4800 enumerated subjects, 3850 subjects (1710 males, 2140 females) were examined (response rate, 80.2%). The prevalence of blindness was 0.85% (95% CI 0.6-1.1%) and was positively associated with age and illiteracy. Cataract was the leading cause (57.6%) and glaucoma was the second cause (16.7%) for blindness. The prevalence of low vision was 2.9% (95% CI 2.4-3.4%) and visual impairment (blindness + low vision) was 3.8% (95% CI 3.2-4.4%). The primary causes for low vision were refractive errors (68%) and cataract (22%). CONCLUSIONS:In this urban population based study, cataract was the leading cause for blindness and refractive error was the main reason for low vision.
journal_name
Indian J Ophthalmoljournal_title
Indian journal of ophthalmologyauthors
Vijaya L,George R,Asokan R,Velumuri L,Ramesh SVdoi
10.4103/0301-4738.111186subject
Has Abstractpub_date
2014-04-01 00:00:00pages
477-81issue
4eissn
0301-4738issn
1998-3689pii
111186journal_volume
62pub_type
杂志文章abstract::The incidence of the craniofacial cleft is rare ranging between 1.43 and 4.85/100,000 births. Tessier number nine cleft being the rarest, there are a few reports of detailed ophthalmologic examinations performed in them. In this study, 1-day-old female neonate delivered by normal vaginal delivery at term, weighing 148...
journal_title:Indian journal of ophthalmology
pub_type: 杂志文章
doi:10.4103/ijo.IJO_914_16
更新日期:2017-07-01 00:00:00
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journal_title:Indian journal of ophthalmology
pub_type: 杂志文章
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更新日期:2020-02-01 00:00:00
abstract::Glaucoma care is more an art than science. The introduction of several new classes of glaucoma medications and the completion of many large randomized clinical trials have not changed this fact. While we now have better choices when initiating glaucoma therapy relative to our predecessors, the principles of glaucoma t...
journal_title:Indian journal of ophthalmology
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doi:10.4103/0301-4738.73691
更新日期:2011-01-01 00:00:00
abstract::We report an unusual presentation of a case of Axenfeld-Rieger (A-R) syndrome. A 14-year-old male presented with gradual dimness of vision for 1 year and redness of left eye for 3 days. The patient had megalocornea with Haab's striae in the right eye and posterior embryotoxon in both the eyes. In the left eye, there w...
journal_title:Indian journal of ophthalmology
pub_type: 杂志文章
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更新日期:2011-07-01 00:00:00
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journal_title:Indian journal of ophthalmology
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doi:10.4103/0301-4738.27074
更新日期:2006-09-01 00:00:00
abstract::We describe a case of right eye tubercular (TB) panuveitis with corneal involvement where repeated intraocular sampling was unsuccessful. Finally, evisceration and histopathology of ocular tissue confirmed the diagnosis of ocular tuberculosis. A chest X-ray showed signs of pulmonary TB. The patient was lost to follow-...
journal_title:Indian journal of ophthalmology
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journal_title:Indian journal of ophthalmology
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journal_title:Indian journal of ophthalmology
pub_type: 杂志文章
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更新日期:2015-06-01 00:00:00
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更新日期:2021-01-01 00:00:00
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journal_title:Indian journal of ophthalmology
pub_type: 杂志文章
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更新日期:2020-12-01 00:00:00
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journal_title:Indian journal of ophthalmology
pub_type: 杂志文章
doi:
更新日期:1987-01-01 00:00:00
abstract:Purpose:Radial keratoneuritis (RK) is a common feature of Acanthamoeba keratitis (AK). In vivo confocal microscopy (IVCM) is noninvasive and provides real-time images for the diagnosis of corneal diseases by allowing the visualization of corneal structures and morphologies of living organisms at the cellular level. Ima...
journal_title:Indian journal of ophthalmology
pub_type: 杂志文章
doi:10.4103/ijo.IJO_1313_19
更新日期:2020-06-01 00:00:00
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journal_title:Indian journal of ophthalmology
pub_type: 杂志文章,评审
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更新日期:2012-09-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2013-08-01 00:00:00
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更新日期:2018-02-01 00:00:00
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journal_title:Indian journal of ophthalmology
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
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journal_title:Indian journal of ophthalmology
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更新日期:2019-07-01 00:00:00
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journal_title:Indian journal of ophthalmology
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1996-09-01 00:00:00
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journal_title:Indian journal of ophthalmology
pub_type: 杂志文章
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更新日期:2019-12-01 00:00:00
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journal_title:Indian journal of ophthalmology
pub_type: 杂志文章
doi:10.4103/0301-4738.149137
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journal_title:Indian journal of ophthalmology
pub_type: 杂志文章
doi:
更新日期:1989-04-01 00:00:00
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journal_title:Indian journal of ophthalmology
pub_type: 杂志文章
doi:
更新日期:1994-09-01 00:00:00
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更新日期:2011-09-01 00:00:00
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journal_title:Indian journal of ophthalmology
pub_type: 杂志文章
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更新日期:2015-08-01 00:00:00
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pub_type: 杂志文章,评审
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