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A population-based eye survey of older adults in a rural district of Rajasthan: I. Central vision impairment, blindness, and cataract surgery.
Ophthalmology 2001; 108(4):679-85O

Abstract

PURPOSE

To assess the prevalence of central vision blindness and cataract surgery in older adults in rural northwest India.

DESIGN

Population-based, cross-sectional study.

PARTICIPANTS

A total of 4284 examined persons 50 years of age or older.

METHODS

A random selection of village-based clusters was used to identify a population sample in the predominantly rural Bharatpur district of Rajasthan. Eligible subjects in the 25 selected clusters were enumerated through a door-to-door household survey and invited to village sites for visual acuity testing and eye examination early in 1999. The principal cause of reduced central vision was identified for eyes that had visual acuity worse than 6/18. Independent replicate testing for quality assurance monitoring took place in participants with reduced vision and in a sample of those with normal vision in five of the study clusters.

MAIN OUTCOME MEASURES

Presenting and best-corrected visual acuity and lens status.

RESULTS

A total of 4728 eligible persons in 2821 households were enumerated, and 4284 (90.6%) were examined. The prevalence of presenting and best-corrected visual acuity worse than 6/60 in both eyes was 11.9% (95% confidence interval: 10.0%-13.9%) and 6.1% (95% CI: 4.7%-7.4%), respectively. Presenting blindness was associated with increasing age, female gender, lack of schooling, and rural residence. Cataract was the principal cause of blindness in one or both eyes in 67.5% of blind persons, with uncorrected aphakia and other refractive error affecting 18.4% in at least one eye. The prevalence of cataract surgery was 12.8% (95% CI: 11.6%-14.0%), with an estimated 65.7% of the cataract blind operated on; low surgical coverage was associated with lack of schooling.

CONCLUSIONS

Blindness, particularly blindness because of cataract, continues to be a significant problem among the elderly living in remote areas of rural northwest India. Increased attention should be given to reaching women and the illiterate.

Authors+Show Affiliations

R. P. Centre for Ophthalmic Sciences, All India Institute for Medical Sciences, New Delhi, India.

Pub Type(s)

Clinical Trial
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

11297483

Citation

Murthy, G V., et al. "A Population-based Eye Survey of Older Adults in a Rural District of Rajasthan: I. Central Vision Impairment, Blindness, and Cataract Surgery." Ophthalmology, vol. 108, no. 4, 2001, pp. 679-85.
Murthy GV, Gupta S, Ellwein LB, et al. A population-based eye survey of older adults in a rural district of Rajasthan: I. Central vision impairment, blindness, and cataract surgery. Ophthalmology. 2001;108(4):679-85.
Murthy, G. V., Gupta, S., Ellwein, L. B., Munoz, S. R., Bachani, D., & Dada, V. K. (2001). A population-based eye survey of older adults in a rural district of Rajasthan: I. Central vision impairment, blindness, and cataract surgery. Ophthalmology, 108(4), pp. 679-85.
Murthy GV, et al. A Population-based Eye Survey of Older Adults in a Rural District of Rajasthan: I. Central Vision Impairment, Blindness, and Cataract Surgery. Ophthalmology. 2001;108(4):679-85. PubMed PMID: 11297483.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A population-based eye survey of older adults in a rural district of Rajasthan: I. Central vision impairment, blindness, and cataract surgery. AU - Murthy,G V, AU - Gupta,S, AU - Ellwein,L B, AU - Munoz,S R, AU - Bachani,D, AU - Dada,V K, PY - 2001/4/12/pubmed PY - 2001/4/21/medline PY - 2001/4/12/entrez SP - 679 EP - 85 JF - Ophthalmology JO - Ophthalmology VL - 108 IS - 4 N2 - PURPOSE: To assess the prevalence of central vision blindness and cataract surgery in older adults in rural northwest India. DESIGN: Population-based, cross-sectional study. PARTICIPANTS: A total of 4284 examined persons 50 years of age or older. METHODS: A random selection of village-based clusters was used to identify a population sample in the predominantly rural Bharatpur district of Rajasthan. Eligible subjects in the 25 selected clusters were enumerated through a door-to-door household survey and invited to village sites for visual acuity testing and eye examination early in 1999. The principal cause of reduced central vision was identified for eyes that had visual acuity worse than 6/18. Independent replicate testing for quality assurance monitoring took place in participants with reduced vision and in a sample of those with normal vision in five of the study clusters. MAIN OUTCOME MEASURES: Presenting and best-corrected visual acuity and lens status. RESULTS: A total of 4728 eligible persons in 2821 households were enumerated, and 4284 (90.6%) were examined. The prevalence of presenting and best-corrected visual acuity worse than 6/60 in both eyes was 11.9% (95% confidence interval: 10.0%-13.9%) and 6.1% (95% CI: 4.7%-7.4%), respectively. Presenting blindness was associated with increasing age, female gender, lack of schooling, and rural residence. Cataract was the principal cause of blindness in one or both eyes in 67.5% of blind persons, with uncorrected aphakia and other refractive error affecting 18.4% in at least one eye. The prevalence of cataract surgery was 12.8% (95% CI: 11.6%-14.0%), with an estimated 65.7% of the cataract blind operated on; low surgical coverage was associated with lack of schooling. CONCLUSIONS: Blindness, particularly blindness because of cataract, continues to be a significant problem among the elderly living in remote areas of rural northwest India. Increased attention should be given to reaching women and the illiterate. SN - 0161-6420 UR - https://www.unboundmedicine.com/medline/citation/11297483/A_population_based_eye_survey_of_older_adults_in_a_rural_district_of_Rajasthan:_I__Central_vision_impairment_blindness_and_cataract_surgery_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0161-6420(00)00579-0 DB - PRIME DP - Unbound Medicine ER -