Table 2.
Visual Acuity During Follow-up of SST Participants in Whom CNV Developed in the Second Eye
| Characteristic | All CNV | CNV diagnosed before last SST follow-up | |||
|---|---|---|---|---|---|
| Total CNV | Subfoveal CNV | Probably subfoveal or juxtafoveal CNV | Extrafoveal CNV | ||
| Visual acuity prior to CNV diagnosis | (n=93) | (n=90) | (n=41) | (n=17) | (n=29) |
| Fellow eye | |||||
| Visual acuity score, mean (std dev) | 93.2 (6.8) | 93.1 (6.9) | 91.1 (7.7) | 95.0 (6.0) | 94.6 (5.9) |
| Snellen equivalent, n (%) | |||||
| 20/20 or better | 33 (35) | 32 (36) | 9 (22) | 8 (47) | 15 (52) |
| 20/25–20/40 | 51 (55) | 49 (54) | 26 (63) | 8 (47) | 12 (41) |
| 20/50–20/80 | 9 (10) | 9 (10) | 6 (15) | 1 (6) | 2 (7) |
| 20/100–20/160 | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| 20/200 or worse | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| Study eye | |||||
| Visual acuity score, mean (std dev) | 35.9 (16.6) | 35.9 (16.7) | 37.5 (18.0) | 34.9 (17.1) | 34.5 (15.4) |
| Snellen equivalent, n (%) | |||||
| 20/20 or better | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| 20/25–20/40 | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| 20/50–20/80 | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| 20/100–20/160 | 17 (18) | 17 (19) | 10 (24) | 3 (18) | 4 (14) |
| 20/200 or worse | 76 (82) | 73 (81) | 31 (76) | 14 (82) | 25 (86) |
| Characteristic | All CNV | CNV with diagnosis before 48 months | |||
| Total CNV | Subfoveal CNV | Probably subfoveal or juxtafoveal CNV | Extrafoveal CNV | ||
| Visual acuity following CNV diagnosis | (n=69) | (n=69) | (n=29) | (n=14) | (n=26) |
| Fellow eye | |||||
| Visual acuity score, mean (std dev) | 64.8 (22.7) | 64.8 (22.7) | 60.6 (21.7) | 64.8 (26.3) | 69.5 (21.6) |
| Snellen equivalent, n (%) | |||||
| 20/20 or better | 6 (9) | 6 (9) | 1 (3) | 1 (7) | 4 (15) |
| 20/25–20/40 | 14 (20) | 14 (20) | 6 (21) | 3 (21) | 5 (19) |
| 20/50–20/80 | 12 (17) | 12 (17) | 4 (14) | 4 (29) | 4 (15) |
| 20/100–20/160 | 15 (22) | 15 (22) | 5 (17) | 2 (14) | 8 (31) |
| 20/200 or worse | 22 (32) | 22 (32) | 13 (45) | 4 (29) | 5 (19) |
| Study eye | |||||
| Visual acuity score, mean (std dev) | 37.3 (16.2) | 37.3 (16.2) | 39.6 (16.2) | 36.0 (19.5) | 35.5 (14.8) |
| Snellen equivalent, n (%) | |||||
| 20/20 or better | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| 20/25–20/40 | 1 (1) | 1 (1) | 1 (3) | 0 (0) | 0 (0) |
| 20/50–20/80 | 2 (3) | 2 (3) | 0 (0) | 1 (7) | 1 (4) |
| 20/100–20/160 | 9 (13) | 9 (13) | 6 (21) | 2 (14) | 1 (4) |
| 20/200 or worse | 57 (83) | 57 (83) | 22 (76) | 11 (79) | 24 (92) |
Abbreviations: SST = Submacular Surgery Trials; CNV = choroidal neovascularization; st dev = standard deviation