Frequency of sight threatening clinical features
| Variable | No (%) of eyes (n = 72) |
|---|---|
| *Includes eyes with epiretinal membranes, retinal vasculitis affecting the posterior pole (defined on fundus fluorescein angiography), and those previously/currently affected by cystoid macular oedema. | |
| †Includes six eyes with previous optic disc swelling and two eyes with optic neuritis secondary to multiple sclerosis. | |
| ‡Defined as greater than LOCS III grade 1. | |
| BIO score = binocular indirect ophthalmoscopy score. | |
| Macular involvement* | 51 (70.8) |
| Optic nerve involvement† | 8 (11.1) |
| BIO score >1 | 12 (16.7) |
| Glaucoma | 1 (1.4) |
| Cataract‡ | 13 (18.1) |