Prevalence of early and late age-related macular degeneration in a rural population in Northern India: The INDEYE feasibility study


Gupta, SK; Murthy, GVS; Morrison, N; Price, GM; Dherani, M; John, N; Fletcher, AE; Chakravarthy, U; (2007) Prevalence of early and late age-related macular degeneration in a rural population in Northern India: The INDEYE feasibility study. Investigative ophthalmology & visual science, 48 (3). pp. 1007-1011. ISSN 0146-0404 DOI: https://doi.org/10.1167/iovs.06-0712

[img]
Preview
Text - Published Version
License: Copyright the publishers

Download (69kB) | Preview

Abstract

PURPOSE. To assess the prevalence of age-related macular degeneration (AMD) in a rural population in Northern India. METHODS. In a pilot feasibility study, 1443 people (median age, 60 years: 52% women), were identified from enumeration of the 50+ age group in 11 randomly sampled villages from a rural, periurban district of Haryana, Northern India. Of those identified, 87% attended an eye examination that included digital fundus photography. Fundus images were graded at a single reading center using definitions from the Wisconsin Age-Related Maculopathy Grading System. RESULTS. Fundus photographs were available for 1101 participants. Overall, 28.8% of participants had ungradable fundus images due to cataract. Including all with ungradable images in the denominator, the prevalence of soft drusen was 34.0% (95% confidence interval [CI] 26.1-42.9); of soft indistinct drusen, 2.2% (95% CI, 1.1 - 4.4); and of pigmentary irregularities, 10.8% (95% CI, 7.1-16.1). There were 15 (1.4%) cases of late-stage AMD (95% CI, 0.8-2.3) with the prevalence rising from 0.4% in the 50- to 59-year age range to 4.6% in those aged 70 years or older. CONCLUSIONS. Drusen and pigmentary irregularities are common among the rural northern Indian population. The prevalence of late AMD is similar to that encountered in Western settings and is likely to contribute significantly to the burden of vision loss in older people in the developing world.

Item Type: Article
Keywords: NUTRITION EXAMINATION SURVEY, NATIONAL-HEALTH, UNITED-STATES, MACULOPATHY, EYE, BLINDNESS, SYSTEM, Age Distribution, Aged, Feasibility Studies, Female, Humans, India, epidemiology, Macular Degeneration, classification, epidemiology, Male, Middle Aged, Photography, Pilot Projects, Prevalence, Risk Factors, Rural Population, statistics & numerical data, Sex Distribution
Faculty and Department: Faculty of Epidemiology and Population Health > Dept of Non-Communicable Disease Epidemiology
Faculty of Infectious and Tropical Diseases > Dept of Clinical Research
Research Centre: The International Centre for Evidence in Disability
International Centre for Eye Health
PubMed ID: 17325139
Web of Science ID: 244686500009
URI: http://researchonline.lshtm.ac.uk/id/eprint/9566

Statistics


Download activity - last 12 months
Downloads since deposit
15Downloads
355Hits
Accesses by country - last 12 months
Accesses by referrer - last 12 months
Impact and interest
Additional statistics for this record are available via IRStats2

Actions (login required)

Edit Item Edit Item