| Age Range | Number, Examined Number and Percentage of the Subjects with Different Manifestation | ||||
|
|
| Nodules | Leopard skin | Blindness | Total prevalence |
| 10 - 19 | 3 | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) |
| 20 - 29 | 6 | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) |
| 30 - 39 | 15 | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) |
| 40 - 49 | 22 | 1 (1.13) | 0 (0.00) | 0 (0.00) | 1 (1.13) |
| 50 - 59 | 11 | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) |
| 60 - 69 | 9 | 0 (0.00) | 1 (1.13) | 1 (1.13) | 2 (2.26) |
| 70 - 79 | 14 | 2 (2.27) | 1 (1.13) | 1 (1.13) | 4 (4.53) |
| 80 - 89 | 6 | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) |
| 90 - 99 | 2 | 0 (0.00) | 0 (0.00) | 0 (0.00) | 0 (0.00) |
| Total | 88 | 3 (3.40) | 2 (2.26) | 2 (2.26) | 7 (7.92) |