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. 2004 Jan;88(1):114–119. doi: 10.1136/bjo.88.1.114

Table 5.

Contrast sensitivity threshold by time and treatment

Follow up, study group
Baseline 3 weeks 6 weeks 12 weeks 6 months 12 months
Low (n = 16) High (n = 16) Low (n = 17) High (n = 15) Low (n = 17) High (n = 13) Low (n = 17) High (n = 16) Low (n = 17) High (n = 12) Low (n = 17) High (n = 13)
⩽10% 5 (31) 5 (31) 5 (29) 6 (40) 5 (29) 4 (31) 4 (24) 8 (50) 3 (18) 4 (33) 2 (12) 4 (31)
11% to 49% 8 (50) 9 (56) 9 (53) 7 (47) 8 (47) 8 (62) 7 (41) 6 (37.5) 10 (59) 5 (42) 6 (35) 5 (38)
⩾50% 3 (19) 2 (13) 3 (18) 2 (13) 4 (24) 1 (8) 6 (35) 2 (12.5) 4 (23) 3 (25) 9 (53) 4 (31)
p Value (t test) 0.28 0.29 0.77 0.04 0.33 0.2