Table 4: The WHO classification of the visual acuity for the 108 operated children's best eyes with IOL, measured preoperatively and postoperatively (presenting vision during the study and best corrected visual acuity BCVA).

Preoperatively* At the study time** (presenting vision) At the study time** (BCVA)
Number % Number % Number %
≥ 6/18 1 1.2 12 12.8 33 35.1
< 6/18 - 6/60 6 7.0 54 57.5 42 44.7
< 6/60 - 3/60 11 12.8 10 10.6 6 6.4
< 3/60 68 79.1 18 19.2 13 13.8

Missing data *22, **14.