Tribal Odisha Eye Disease Study Report # 6. Opportunistic screening of vitamin A deficiency through School Sight Program in tribal Odisha (India)
2020
Purpose: To explore the possibility of vitamin A deficiency (VAD) detection through School Sight Program (SSP) in a tribal district of Odisha, India. Methods: In a cross-sectional observational study, we tracked school children with ocular signs/symptoms of VAD to their villages. The ophthalmologist examined their under-5 siblings and other under-5 children in the village. Information pertaining to family belief and practices of food, water, sanitation, and the socioeconomic status of the family were collected. Results: The ocular features of VAD were detected in 207 of 4801 (4.3%) examined children. This included 70 children (mean age 11 +/- 2.6 years) detected in the school, 22 siblings (mean age 3.2 +/- 1.2 years) of these children detected at their home, and 115 children (mean age 3 +/- 1.5 years) detected in their habitat. The average family size was 5.8 +/- 2.02 and the birth order of the child with VAD was 2.3 +/- 1.25. Most parents were farmer, living in asbestos-roofed house, depended on public underground water, and practiced open-air defecation. The distribution of VAD in 207 children was conjunctival xerosis (X1A = 207; 100% of VAD and 4.3% of all children), Bitot's spot (X1B = 169; 81.6% of VAD and 3.5% of all children), corneal scar (XS = 3; 1.4% of VAD and 0.06% of all children), and night blindness (XN = 35; 16.9% of VAD and 0.72% of all children). Conclusion: An opportunistic screening for detection of VAD through a SSP could be cost-effective and complement the existing strategy.
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