Demographic data
| Normal subjects | Glaucoma patients | p Value | |
| Number (n) | 91 | 94 | |
| Age (years (SD)) | 47.3 (6.0) | 64.7 (11.3) | <0.01 |
| Race (black/white/Asians) | 23/65/3 | 35/57/2 | 0.20 |
| Sex (M/F) | 54/37 | 52/42 | 0.58 |
| Spherical equivalent (dioptres) | +0.33 (0.91) | +0.69 (1.86) | 0.22 |
| Cup/disc ratio | 0.32 (0.12) | 0.69 (0.12) | <0.01 |