ERG findings by refractive group
| Refraction | High myopia | Low myopia | Emmetropia | Low hyperopia | High hyperopia |
|---|---|---|---|---|---|
| ⩽−6D | >−6 to ⩽−0.75D | >−0.75 to −<1.5D | >1.5D to <6D | ⩾+ 6D | |
| ERG findings | |||||
| Normal | 7 | 13 | 28 | 34 | 5 |
| Abnormal | 8 | 6 | 7 | 10 | 5 |
| Total | 15 | 19 | 35 | 44 | 10 |
| % abnormal ERG findings | 53.33 | 31.58 | 20.00 | 22.73 | 50.00 |