Table 7

Vision change 1 year after initial screening (n=96)

Previous visionPresent vision
I n (%)II n (%)III n (%)IV n (%)All n (%)
 I18 (18.8)13 (13.5)3 (3.1)034 (35.4)
 II1 (1.0)12 (12.5)14 (14.6)1 (1.0)28 (29.2)
 III3 (3.1)015 (15.6)6 (6.3)24 (25.0)
 IV00010 (10.4)10 (10.4)
 All22 (22.9)25 (26.0)32 (33.3)17 ( 17.7)96
  • Categories (WHO): I=less than 6/18–6/60; II=less than 6/60–3/60; III=less than 3/60–1/60; IV=less than 1/60 to perception of light; kappa statistic=0.437, z=7.41, p <0. 001.