[Table/Fig-10]:

Comparison of present study with the previous studies.

Study→ Indicators↓	Present study Phase 1	Present study Phase 2	Sudan 2009	Saxena 2015	Limburg 1999
Number of schools covered	166	5	20	530	32848
Number of teachers trained	253	6	40	530	32848
Number of students enrolled	30,298	664	10,114	77,778	5,389,065
% of children screened by teachers	99.7%	100%	97.3%	88.50%	-
% of children referred by teachers to ophthalmology team	14.97%	18.37%	17.3%	4.91%	4.3%
% of children examined by ophthalmology team	91.75%	86.88%	-	77.32%	89.1%
True positives	47.25%	46.22%	67.02%	42.03%	26.50%
False positives	52.75%	53.78%	32.98%	57.97%	73.50%
True negatives	-	95.65%	96.33%	93.92%	-
False negatives	-	4.35%	3.67%	6.08%	-