Visual function at the last follow up
| Mean (SD) | Range | |
|---|---|---|
| The Goldmann visual fields were scanned into a computer and the area of the 4-IV-e was measured in square units using a graphics programme. | ||
| Duration of follow up in months | 12.3 (4.5) | 6.7–22.8 |
| Distance logMAR visual acuity | 0.97 (0.29) | 0.28–1.4 |
| Near logMAR visual acuity | 0.85 (0.30) | 0.32–1.4 |
| Reading speed in words per minute | 62 (43) | 0–177 |
| Critical print size in logMAR units | 1.03 (0.24) | 0.4–1.4 |
| Area of Goldmann 4-IV-e of the operated eye in square units | 113 (56) | 12–223 |
| Area of Goldmann 4-IV-e of the fellow eye in square units | 203 (64) | 24–301 |
| Pelli-Robson: contrast sensitivity score | 16.5 (8.3) | 0–30 |
| City University test: No of colour plates | 2.9 (2.6) | 0–6 |