The risk factors for Blindness and VI based on presenting visual acuity across different studies in India and neighbouring countries.

OR: Odds Ratio; Ref: Reference Group; CI: Confidence Interval;∧: Reference group: Female;*Reference group: Illiterate;$: Reference group: Rural location;#: Primary education;&: Secondary education;+: Higher with increasing age (Odds ratio and 95% CI not available);++: Higher in females (Odds ratio and 95% CI not available).