Visual acuity at 2 months of follow up, by quarter
| Jan–March No (%) | April–June No (%) | July–Sept No (%) | Oct–Dec No (%) | Total No (%) | |
|---|---|---|---|---|---|
| *χ2 test for trend = 13.04, p<0.001; †χ2 test for trend = 13.0, p<0.001. | |||||
| Good = 6/18 or better; borderline = <6/18–6/60; poor = <6/60. | |||||
| Unaided acuity* | |||||
| Good | 116 (43.6) | 135 (41.4) | 158 (45.8) | 119 (45.2) | 528 (44.0) |
| Borderline | 115 (43.2) | 162 (49.7) | 157 (45.5) | 134 (51.0) | 568 (47.3) |
| Poor | 35 (13.2) | 29 (8.9) | 30 (8.7) | 10 (3.8) | 104 (8.7) |
| Total | 266 | 326 | 345 | 263 | 1200 |
| Corrected acuity† | |||||
| Good | 195 (77.1) | 266 (82.4) | 283 (83.0) | 228 (89.4) | 972 (82.9) |
| Borderline | 43 (17.0) | 52 (16.1) | 49 (14.4) | 25 (9.8) | 169 (14.4) |
| Bad | 15 (5.9) | 5 (1.5) | 9 (2.6) | 2 (0.8) | 31 (2.7) |
| Total | 253 | 323 | 341 | 255 | 1172 |