Table 3.
Visual acuity | VA change at 12 months‡ | |||||
Group | Preoperative | At 12 months | Improvement | Stationary | Loss | Av of lines gained or lost at 12 months |
Occult CNV | 20/60 to 20/600 (0.39 to 1.52)* (0.83 (0.35))† | 20/40 to CF (0.22 to 1.7)* (1.02 (0.41))† | 4 | 8 | 6 | −0.81 |
Classic CNV | 20/200 to 20/600 (1 to 1.52)* (1.12 (0.26))† | 20/100 to HM (0.7 to 2)* (1.3 (0.5))† | – | 5 | 1 | −1.94 |
Subretinal haemorrhage | 20/125 to LP (0.8 to 2.3)* (1.65 (0.47))† | 20/160 to HM (0.9 to 2)* (1 (0.31))† | 9 | 5 | 1 | +4.5 |
Total | 20/60 to LP (0.39 to 2.3)* (1.19 (0.54))† | 20/40 to HM (0.22 to 2)* (1.17 (0.4))† | 13 | 18 | 8 |
VA = visual acuity, Av = average, best corrected visual acuity, *logMAR scale; †Mean; ‡change equals gain or loss more than three lines on logMAR scale.