Ultrasound biomicroscopic classification, demographic and clinical characteristics
| No. | UBM type | Sex | Eye laterality | Age at onset (months) | Age at operation (months) | FFU duration (months) | Time prior to secondary glaucoma surgery (months) |
| 1 | Ⅰ | M | OD | 0.03 | 4 | 45 | – |
| 2 | Ⅰ | F | OS | 0.03 | 4 | 21 | – |
| 3 | Ⅰ | F | OD | 24 | 24 | 15 | – |
| 4 | Ⅰ | M | OD | 0.03 | 1 | 12 | – |
| 5 | Ⅰ | M | OD | 0.03 | 1.5 | 4 | 4 |
| 6 | Ⅰ | F | OD | 8 | 10 | 37 | 37 |
| 7 | Ⅰ | M | OS | 7.5 | 13.5 | 36 | – |
| 8 | Ⅰ | F | OS | 0.03 | 2 | 12 | – |
| 9 | Ⅰ | M | OD | 0 | 1 | 15 | – |
| 10 | Ⅰ | M | OS | 0 | 3.5 | 23 | – |
| 11 | Ⅰ | F | OS | 0 | 2 | 9 | 9 |
| 12 | Ⅱ | M | OD | 6 | 9 | 36 | – |
| 13 | Ⅱ | F | OD | 3 | 4 | 72 | – |
| 14 | Ⅱ | M | OD | 3 | 3 | 30 | 30 |
| 15 | Ⅱ | M | OD | 0.03 | 8 | 4 | 4 |
| 16 | Ⅱ | F | OS | 2.7 | 4.7 | 7 | 7 |
| 17 | Ⅱ | M | OD | 0.5 | 2.5 | 2 | 2 |
| 18 | Ⅱ | F | OD | 0.03 | 7 | 4 | 4 |
| 19 | Ⅱ | M | OS | 0.03 | 8 | 3.5 | 3.5 |
| 20 | Ⅱ | F | OD | 0.03 | 4 | 4 | 4 |
| 21 | Ⅱ | M | OD | 0 | 7 | 4 | 4 |
| 22 | Ⅱ | M | OD | 0 | 4 | 2 | 2 |
| 23 | Ⅲ | F | OS | 1 | 8 | 12 | 12 |
| 24 | Ⅲ | F | OS | 5 | 8 | 4 | 4 |
| 25 | Ⅲ | F | OS | 1.5 | 2 | 3 | 3 |
F, female; FFU, final follow-up; M, male; OD, right eye; OS, left eye; UBM, ultrasound biomicroscopy.