Cycles per degree
Experimental
RA
P value
Photopic contrast
1.5
1.76±0.19
1.78±0.15
0.62
3
1.90±0.32
1.90±0.30
0.99
6
1.90±0.21
1.87±0.18
0.40
12
1.23±0.22
1.21±0.22
0.60
18
0.95±0.66
0.79±0.33
0.11
Photopic contrast with glare
1.5
1.70±0.20
1.73±0.19
0.61
3
1.76±0.23
1.75±0.20
0.88
6
1.86±0.21
1.82±0.16
0.22
12
1.16±0.22
1.10±0.19
0.15
18
0.83±0.25
0.77±0.25
0.08
Mesopic contrast
1.5
1.69±0.20
1.71±0.21
0.60
3
1.77±0.19
1.75±0.20
0.64
6
1.89±0.20
1.68±0.15
0.00**
12
1.14±0.20
1.04±0.18
0.04*
18
0.74±0.20
0.62±0.25
0.01**
Mesopic contrast with glare
1.5
1.62±0.15
1.60±0.16
0.64
3
1.73±0.18
1.66±0.19
0.06
6
1.76±0.22
1.71±0.18
0.08
12
1.04±0.2
1.00±0.16
0.23
18
0.66±0.24
0.56±0.27
0
.02*
*significantly different at 0.05 level **significantly different at 0.01 level
Table 2:
Contrast sensitivity (log values) under photopic, photopic with glare, mesopic, and mesopic with glare conditions.
