Anisometropia in relation to stage of ROP
| Anisometropia | First retinoscopy | Second retinoscopy | |||||||
|---|---|---|---|---|---|---|---|---|---|
| None | ⩾1 and <2 D | ⩾2 D | Total | None | ⩾1 and <2 D | ⩾2 D | Total | ||
| ROP: | |||||||||
| None | 146 (97.3%) | 3 (2%) | 1 (0.7%) | 150 (100%) | 127 (95.5%) | 4 (3.0%) | 2 (1.5%) | 133 (100%) | |
| Mild | 45 (93.7%) | 2 (4.2%) | 1 (2.1%) | 48 (100%) | 42 (93.4%) | 1 (2.2%) | 2 (4.4%) | 45 (100%) | |
| Severe without cryo | 21 (91.3%) | 2 (8.7%) | 0 (0%) | 23 (100%) | 23 (100%) | 0 (0%) | 0 (0%) | 23 (100%) | |
| Severe with cryo | 19 (73.1%) | 2 (7.7%) | 5 (19.2%) | 26 (100%) | 16 (61.6%) | 3 (11.5%) | 7 (26.9%) | 26 (100%) | |
| Total | 231 (93.5%) | 9 (3.7%) | 7 (2.8%) | 247 (100%) | 208 (91.6%) | 8 (3.5%) | 11 (4.9%) | 227 (100%) | |