Table 2.

Percentage of eyes with change in visual acuity (VA) of at least 0.3 logMAR after vitrectomy for diabetic traction retinal detachment when pre-operative VA was better or worse than 20/80.

Pre-op VA	Post-op time (months)	N	Improve [ > 0.3 increase]	Same  [< 0.3 change]	Worse  [> 0.3 decrease]
Better than 20/80	3	47	7 (15%)	28 (60%)	12 (26%)
	6	40	5 (12%)	28 (70%)	7 (18%)
	12	34	9 (26%)	16 (47%)	9 (26%)
	60	13	2 (15%)	9 (70%)	2 (15%)
20/80 or worse	3	155	83 (54%)	43 (28%)	29 (19%)
	6	130	79 (61%)	24 (18%)	27 (21%)
	12	100	57 (57%)	23 (23%)	20 (20%)
	60	44	26 (59%)	8 (18%)	10 (23%)