Between 1979-1985, 105 diabetic patients underwent vitreous surgery fo
r diabetic eye disease in one or both eyes. By spring 1991, 40 patient
s (38%) had died, and 36 (55%) of the living 65 patients had good or m
oderate vision (visual acuity, VA greater-than-or-equal-to 0.3 in the
better eye), 13 (20%) had low vision (VA 0.05-0.25), and 16 (25%) were
blind (VA < 0.05). For 19 of the 65 patients (29%) impaired vision wa
s the main factor that limited independent activities. Of the 29 patie
nts with the suboptimal vision, 2 were employed, and none needed insti
tutional care. Nine (31%) participated in all household activities, an
d 14 (48%) were able to read. Near vision aids were used by 14 of the
19 patients (74%) with ambulatory vision (VA greater-than-or-equal-to
CF), but only 2 of them (11%) had accepted telescopic aids. Eight pati
ents (28%) had a guide dog. In spite of vitreoretinal surgery, almost
half of diabetic patients may end up with suboptimal vision, emphasizi
ng the need for active visual rehabilitation.