Visual acuity before treatment and after 3 years and 5 years
| Number of eyes | Visual acuity | ||
|---|---|---|---|
| Before treatment | After 3 years | After 5 years | |
| HM, hand movements; LP, light perception. | |||
| 5/10–10/10 | 55 (62%) | 32 (42%) | 20 (38%) |
| 1/10–4/10 | 20 (22%) | 17 (22%) | 13 (25%) |
| Less than 1/10 | 13 (15%) | 20 (26%) | 13 (25%) |
| HM, LP, no LP | 1 (1%) | 7 (9%) | 7 (13%) |