Objectives-To investigate the importance of vitamin A deficiency as a cause of childhood blindness and severe visual impairment (SVI) in India.
Design and setting-Cross sectional survey of children with visual acuity less than 6/60 in the better eye (SVI/blindness), attending 22 schools for the blind in nine states of India.
Main outcome measure-Proportion of children with blindness or SVI from corneal scarring attributable to vitamin A deficiency.
245 of 1318 (18-6%) of children had SVI/blindness attributable to vitamin A deficiency.
The proportion of SVI/blindness due to vitamin A deficiency ranged from 7.5% (7/93) in Kerala to 26.7% (27/101) in Madhya Pradesh.
In Tamil Nadu, 7-5% (9/120) of children in the capital city blind school had SVI/blindness due to vitamin A deficiency, compared with 30.4% (51/168) in a blind school in a rural area of the same state.
Conclusion-Overall, vitamin A deficiency is the single most important cause of childhood blindness and SVI in India.
There are marked variations by state and also between urban and rural locations.
Mots-clés Pascal : Cécité, Enfant, Homme, Age scolaire, Carence vitaminique, Rétinol, Epidémiologie, Inde, Asie, Répartition géographique, Oeil pathologie, Trouble vision, Trouble nutrition
Mots-clés Pascal anglais : Blindness, Child, Human, School age, Vitamin deficiency, Retinol, Epidemiology, India, Asia, Geographic distribution, Eye disease, Vision disorder, Nutrition disorder
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 95-0280257
Code Inist : 002B22C. Création : 01/03/1996.