Table 3 Visual acuity at the beginning and end of the observation period.
| 1995 | 2005 | |
|---|---|---|
| No. of patients | No. of patients | |
| VA⩾1.0 | 260 | 196 |
| 1.0>VA⩾0.3 | 35 | 95 |
| 0.3>VA⩾0.1 | 1 | 5 |
| 0.1>VA | 0 | 0 |
VA, visual acuity.
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