| Visual acuity a |  | ||
---|---|---|---|---|
 | Normal | Moderately impaired | Blind | All patients |
Retinopathy a | n = 734 | n = 54 | n = 16 | n = 804 |
Diabetic retinopathy | Â | Â | Â | Â |
   Microaneurysms only | 46 (6.3) | 5 (9.3) | 0 (0) | 51 (6.3) |
   Further diabetic retinopathy b | 48 (6.5) | 10 (18.5) | 3 (18.8) | 61 (7.6) |
Age-related macular degeneration, AMD | 65 (8.9) | 20 (37.0) | 11 (57.9) | 96 (11.9) |
Other retinopathy | 44 (6.0) | 0 (0) | 2 (10.5) | 46 (5.7) |
No retinopathy | 541 (73.7) | 23 (42.6) | 1 (6.3) | 565 (70.3) |