Table 1. Details of blind participants.
B1-8 were non-echolocators. BE was an expert echolocator.
| Age, age of onset of vision loss (yrs) | Gender | Cause of vision loss | Visual status, WHO category | ||
|---|---|---|---|---|---|
| B1 | 54, 5 | F | Macular degeneration | Light perception, 4 | |
| B2 | 48, 5 | M | Stickler's Syndrome, retinal detachment | No light perception, 5 | |
| B3 | 54, 1.5 | F | Glaucoma | No light perception, 5 | |
| B4 | 41, 1 | F | Retinoblastoma | No light perception, 5 | |
| B5 | 26, 2 | F | Norrie disease | Light perception, 4 | |
| B6 | 25, 3 | M | Retinoblastoma | No light perception, 5 | |
| B7 | 42, birth | F | Retinopathy of prematurity | No light perception, 5 | |
| B8 | 39, 1 | M | Retinoblastoma | Light perception, 4 | |
| BE | 20, 2.5 | F | Retinoblastoma | No light perception, 5 | |