p < 0.001

< 3/60 (Blind)

3/60 to < 6/60 (severe visual impairment)

6/60 to < 6/18 (moderate visual impairment)

6/18 and better (near normal/normal vision)

PPV + Silicon oil

74.9% (197/263)

5.7% (15/263)

13.7% (36/263)

5.7% (15/263)

PPV + Gas

53.8% (7/13)

15.4% (2/13)

-

30.8% (4/13)

PPV + SB

66.7% (34/51)

5.9% (3/51)

15.7% (8/51)

11.8% (8/51)

SB

13.3% (2/15)

-

-

86.7% (13/15)