Table 1.
Summary Demographics for the Anisometropic and Isoametropic Amblyopia Groups
| Characteristic | Anisometropic (n = 269) | Isoametropic (n = 218) | Total (N = 487) |
|---|---|---|---|
| Male | 155 (57.6) | 120 (55) | 275 (56.5) |
| Age at first visit | 6.2 (5.0, 7.9) | 5.6 (4.5, 7.1) | 6 (5.0, 7.5) |
| Age at normal VA | 7.6 (6.5, 9.3) | 7.9 (6.6, 9.0) | 7.7 (6.6, 9.2) |
| Hyperopia | 237 (88.1) | 201 (92.2) | 438 (90) |
| With astigmatism <2 D | 142 (52.8) | 75 (34.4) | 217 (44.6) |
| With astigmatism ≥2 D | 95 (35.3) | 126 (57.8) | 221 (45.4) |
| Myopia | 32 (11.9) | 17 (7.8) | 49 (10) |
| With astigmatism <2 D | 23 (8.6) | 7 (3.2) | 30 (6.2) |
| With astigmatism ≥2 D | 9 (3.3) | 10 (4.6) | 19 (3.9) |
Data are presented as median (quartile 1, quartile 3) for age (years), otherwise as n (%). First visit refers to the patient's first appointment at Zhongshan Ophthalmic Center.