| Groups | anisometropia | no anisometropia | total |
| OSA-S group | 22 | 10 | 32 |
| OSA-NS group | 7* | 22 | 29 |
| Total OSA | 29 | 32 | 61 |
| Control-S group | 4*◊ | 20 | 24 |
| Control-NS group | 7*◊∆ | 36 | 43 |
| Total Control | 11 | 56 | 67 |