| Characteristic | First Group | Second Group | Probability Significance(S) |
| No. patients | 60 | 60 | - |
| Sex (female/male) | 34/26 | 36/24 |
|
| Age (years) | 61.18 ± 6.23 | 57.31 ± 11.2 | S (0.001) |
| Best corrected visual acuity | 10 (9 - 10) | 10 (10 - 10) | S (0.0001) |
| Intraocular pressure (mmHg) | 15 (14 - 16) | 13 (12 - 15) | S (0.0001) |
| Daily number of medications | 2 (1 - 2) | 0 | NA |
| Daily number of instillations | 3 (1 - 3) | 0 | NA |
| Cup to disc ratio | 0.6 (0.5 - 0.7) | 0.2 (0.1 - 0.3) | S (0.0001) |
| Central corneal thickness (μm) | 525 (514 - 541) | 531(523 - 546) | S (0.001) |
| Mean deviation (db) | −0.73 ± 0.93 | −0.06 ± 0.77 | S (0.0001) |
| Pattern standard deviation (db) | 1.87 ± 0.52 | 1. 84 ± 0.28 | S (0.0001) |