| Characteristics | Number/(%) (n = 43 eyes/22 patients) |
| Age (mean [years]) (range [years]) | 7.6 ± 5.2 0 - 17 |
| Sex (n = 22) | |
| Male | 10 (45) |
| Female | 12 (55) |
| Family history | |
| Familial | 5 (23) |
| Sporadic | 17 (77) |
| Laterality (n = 43) | |
| Unilateral | 1 (5) |
| Bilateral | 21 (95) |