Table 1.
Characteristics of Blind Participants
| Age | Gender | Educational level (years) |
Cause of blindness | Residual visual ability |
|---|---|---|---|---|
| 36 | M | 13 | Retinopathy of prematurity | Lights |
| 52 | F | 13 | Retinopathy of prematurity | None |
| 58 | M | 18 | Congenital glaucoma | Lights, shadows, and colors |
| 45 | F | 8 | Micro ophthalmia | Lights |
| 53 | F | 8 | Optic nerve tumor | None |
| 56 | F | 13 | Retinopathy of prematurity | None |
| 58 | M | 18 | Retinitis pigmentosa | Lights |
| 24 | M | 10 | Optic nerve atrophy | None (could see lights and shadows until the age of 5) |
| 45 | F | 8 | Micro ophthalmia | Right eye lights and shadows, left eye none |
| 39 | F | 13 | Complications related to premature birth | Lights |
| 28 | F | 13 | Retinal degeneration/malformation | None |
| 21 | F | 18 | Ocular malformation | None |
| 48 | M | 18 | Leber’s congenital amaurosis | None |
| 42 | M | 3 | Optic nerve atrophy | Lights |
| 28 | M | 13 | Retinitis pigmentosa | Lights |
| 30 | M | 13 | Retinopathy of prematurity | None |