Criteria | Target (N = 60) | Actual (N = 66)* |
---|---|---|
Age (years) | ||
 Caregiver of child 3–5 years | n = 1 | n = 6 |
 Caregiver of child 6–11 years | n = 1–2 | n = 9 |
 Child (6–11 years) | n = 3–4 | n = 8 |
 Adolescent (12–17 years) | n = 3–4 | n = 10 |
 Adult (18 years and over) | n = 3–4 | n = 33 |
RP genotype | ||
 RLBP1 RP | n = 1–2 | n = 8 |
 RPE65 RP | n = 1–2 | n = 1 |
 RPE65 LCA | n = 1–2 | n = 12 |
 X-linked/RPGR RP | n = 1–2 | n = 16 |
 PRPF31 RP | n = 1–2 | n = 2 |
 Rhodopsin gene (RHO) | n = 1–2 | n = 2 |
Patient-reported severity of RP | ||
 Very mild | n = 1–2 | n = 0 |
 Mild | n = 1–2 | n = 6 |
 Moderate | n = 1–2 | n = 17 |
 Severe | n = 1–2 | n = 17 |
 Very severe | n = 1–2 | n = 10 |
Visual acuity* score of the left eye | ||
 Mild (> 60 letters) | n = 1–2 | n = 21 |
 Moderate (36–60 letters) | n = 1–2 | n = 13 |
 Severe (5–35 letters) | n = 1–2 | n = 11 |
 Very severe (< 5 letters) | n = 1–2 | n = 10 |
 N/A (blind) | N/A | n = 2 |
Visual acuity* score of the right eye | ||
 Mild (> 60 letters) | n = 1–2 | n = 24 |
 Moderate (36–60 letters) | n = 1–2 | n = 13 |
 Severe (5–35 letters) | n = 1–2 | n = 10 |
 Very severe (< 5 letters) | n = 1–2 | n = 7 |
 N/A (blind) | N/A | n = 2 |