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| RD type | Number of respondents who reported having ever requested tests (n=27; %) |
|---|---|
| Autosomal dominant retinitis pigmentosa | 22 (81) |
| Autosomal recessive retinitis pigmentosa | 19 (70) |
| X-linked retinitis pigmentosa | 24 (89) |
| Other isolated IRD | 21 (78) |
| Leber congenital amaurosis | 20 (74) |
| Macular dystrophy | 19 (70) |
| Bardet–Biedl syndrome | 20 (74) |
| Usher's Syndrome | 20 (74) |
