Table 5.
Contrast sensitivity threshold by time and treatment
| Follow up, study group | ||||||||||||
| Baseline | 3 weeks | 6 weeks | 12 weeks | 6 months | 12 months | |||||||
| Low (n = 16) | High (n = 16) | Low (n = 17) | High (n = 15) | Low (n = 17) | High (n = 13) | Low (n = 17) | High (n = 16) | Low (n = 17) | High (n = 12) | Low (n = 17) | High (n = 13) | |
| ⩽10% | 5 (31) | 5 (31) | 5 (29) | 6 (40) | 5 (29) | 4 (31) | 4 (24) | 8 (50) | 3 (18) | 4 (33) | 2 (12) | 4 (31) |
| 11% to 49% | 8 (50) | 9 (56) | 9 (53) | 7 (47) | 8 (47) | 8 (62) | 7 (41) | 6 (37.5) | 10 (59) | 5 (42) | 6 (35) | 5 (38) |
| ⩾50% | 3 (19) | 2 (13) | 3 (18) | 2 (13) | 4 (24) | 1 (8) | 6 (35) | 2 (12.5) | 4 (23) | 3 (25) | 9 (53) | 4 (31) |
| p Value (t test) | 0.28 | 0.29 | 0.77 | 0.04 | 0.33 | 0.2 | ||||||