Angiographic features of female carriers with norrin cysteine knot growth factor mutations
| FFA findings | Eyes (n, %) |
| Avascular area | 2 (8.3) |
| Supernumerary vascular branching | 8 (33.3) |
| Telangiectatic endings | 16 (66.7) |
| Anomalous circumferential vessel | 9 (37.5) |
| Fluorescein leakage | 7 (29.2) |
| Retinal fold | 2 (8.3) |
| Peripheral straightening of retinal vessels | 8 (33.3) |
FFA, fundus fluorescein angiography.