Abstract

Purpose: To report the prevalence and risk factors of cataract and its subtypes in older age group. Methods: A total of 6617 subjects were recruited from both rural and urban areas. A detailed history including data on demographic, socioeconomic and ocular history was obtained. Lens opacity was graded according to the Lens Opacity Classification System III (LOCS III). Results: Cataract was present in 1094 of the rural and 649 subjects in the urban population. Monotype subtype cataracts were found in 32% and 25% in rural and urban population and 12.68% and 18.6% were mixed cataracts in the rural and urban groups. In baseline characteristics history of diabetes, alcohol intake and presence of age-related macular degeneration were the risk factors in urban group. On multivariate analysis, the only significant risk factors for any cataract in subjects ≥60 years were increasing age in both rural [odds ratio (OR), 1.07] and urban (OR, 1.08) population, and HbA1c (OR, 1.14) in rural population. Overweight (OR, 0.6) was found to be a protective factor, and lower social economic status (OR, 1.52) a risk factor for cataract in urban population. A significant urban–rural difference was found in the prevalence of cataract and its subtypes (P ≤ 0.05). Conclusion: We found the risk factors for any cataract in older age group to be increasing age and HbA1c in rural group. Age and lower social economic status were found to be the risk factors in urban arm. A statistically significant difference was found on comparison of the prevalence of cataract and its subtypes between the rural and urban population.

Details

Title
The prevalence and risk factors for cataract in rural and urban India
Author
Singh, Sumeer 1 ; Pardhan, Shahina 2 ; Kulothungan, Vaitheeswaran 3 ; Swaminathan, Gayathri 3 ; Ravichandran, Janani 3 ; Ganesan, Suganeswari 4 ; Sharma, Tarun 4 ; Raman, Rajiv 1 

 Shri Bhagwan Mahavir Vitreoretinal Services, Chennai, Tamil Nadu, India; Vision and Eye Research Unit, Anglia Ruskin University, Cambridge, UK 
 Vision and Eye Research Unit, Anglia Ruskin University, Cambridge 
 Department of Preventive Ophthalmology, 18, College Road, Sankara Nethralaya, Chennai, Tamil Nadu 
 Shri Bhagwan Mahavir Vitreoretinal Services, Chennai, Tamil Nadu 
Pages
477-483
Publication year
2019
Publication date
Apr 2019
Publisher
Medknow Publications & Media Pvt. Ltd.
ISSN
03014738
e-ISSN
19983689
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2197205607
Copyright
© 2019. This work is published under https://creativecommons.org/licenses/by-nc-sa/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.