| Characteristic |
a.-lipoic acid |
Placebo |
p |
| Sexes F / M |
26 / 9 |
24 / 11 |
0.59 |
| Age |
43 ± 7.6 |
48 ± 11.4 |
0.02 |
| Sun glasses |
5 |
10 |
0.14 |
| One Eye Affected |
29 |
29 |
1 |
| Both eyes |
6 |
6 |
| Left eye |
15 |
19 |
0.28 |
| Right eye |
14 |
10 |
| Residence |
| Urban
Suburban |
24 |
19 |
0.34 |
| 24 |
19 |
0.34 |
| Localization |
| Nasal |
33 |
31 |
0.39 |
| Temporal |
2 |
4 |
0.39 |
|
