DOI: http://dx.doi.org/10.18203/2394-6040.ijcmph20202993

Rapid assessment of avoidable blindness in a district in central India: the survey findings

Bodhraj Dhawan, Vaishali B. Dhawan, Ajay Kumar Shukla

Abstract


Background: Rapid assessment of avoidable blindness gives an estimate of burden of blindness and causes thereof. Aim of the study was to estimate prevalence of blindness and trends and outcome of cataract surgery in rural India using cluster sample survey.

Methods: 30 clusters of 100 people aged above 50 years were selected by stratified cluster sampling. Participants were evaluated for history, vision and dilated fundus examination as per pre designed proforma.

Results: Of the 3000 people listed severe visual impairment (visual acuity <3/60) was noted in 134 (4.5%) individuals (361 (6.02%) eyes). Blindness was noted in 107 (3.5%) individuals (483 (8.05%) eyes). Cataract was the most common cause of visual impairement in 18.57% eyes. Pseudophakia was present in 551 (9.2%) eyes and 179 (3.0%) eyes had aphakia. Grade III and Grade IV PCO was noted in 52 (9.4%) and 14 (2.5%) eyes respectively.

Conclusions: Untreated cataract continues to be the leading cause of avoidable blindness. Startegies are required to manage blindness following cataract while we plan to combat cataract related blindness.


Keywords


Avoidable blindness, Cataract, Pseudophakia, Visual acuity

Full Text:

PDF

References


Minassian DC, Mehra V. 3.8 million blinded by cataract each year: projections from the first epidemiological study of incidence of cataract blindness in India. British J Ophthalmol. 1990;74(6):341-3.

Hannah K, Polack S, Hans L. Rapid assessment of avoidable blindness. Community Eye Health. 2006;19(60):68-9.

Foster A. Cataract and Vision 2020 the right to sight initiative. British J Ophthalmol. 2001;85(6):635-7.

Murthy GV, Gupta SK, Bachani D, Jose R, John N. Current estimates of blindness in India. British J Ophthalmol. 2005;89(3):257-60.

Thulasiraj RD, Praveen KN, Ramakrishnan R. Blindness and vision impairment in a rural south Indian population: the aravind comprehensive eye survey. Ophthalmol. 2003;110(8):1491-8.

Thulasiraj RD, Rahamathulla R, Saraswati A, Selvaraj S, Ellwein LB. The sivaganga eye survey: blindness and cataract surgery. Ophthalmic Epidemiol. 2002;9(5):299-312.

Murthy GVS, Sanjeev G, Leon BE, Sergio RM, Damodar B, Dada VK. A population-based eye survey of older adults in a rural district of Rajasthan: I. Central vision impairment, blindness, and cataract surgery. Ophthalmol. 2001;108(4):679-85.

Pokharel GP, Regmi G, Shrestha SK, Negrel AD, Ellwein LB. Prevalence of blindness and cataract surgery in Nepal. British J Ophthalmol. 1998;82(6):600-5.

Lalit D, Rakhi D, Thomas JN. Population-based assessment of the outcome of cataract surgery in an urban population in southern India. Am J Ophthalmol. 1999;127(6):650-8.

Aslam TM, Dhillon B, Werghi N, Taguri A, Wadood A. Systems of analysis of posterior capsule opacification. British J Ophthalmol. 2002;86(10):1181-6.

Prajna NV, Chandrakanth KS, Kim R. The Madurai intraocular lens study II: clinical outcomes. Am J Ophthalmol. 1998;125(1):14-25.

Jialiang Z, Ruifang S, Lijan J, Astrid EF, Leon BE. Visual acuity and quality of life outcomes in patients with cataract in Shunyi County, China. Am J Ophthalmol. 1998;126(4):515-23.

Schaumberg DA, Dana MR, Christen WG, Glynn RJ. A systematic overview of the incidence of posterior capsule opacification. Ophthalmol. 1998;105(7):1213-21.