Baseline data of the patients of the study group and the control group
| Study group (n = 97) | Control group (n = 69) | p Value* | |
|---|---|---|---|
| *Statistical significance of difference between the two groups. | |||
| NS, statistically not significant; VA, visual acuity. Results shown as mean (standard deviation). | |||
| Age (years) | 67.2 (9.9) | 66.7 (8.6) | 0.56 (NS) |
| Median | 67.5 | 67.8 | |
| Range | 28.2–86.7 | 49.1–87.5 | |
| Refractive error (D) | 0.61 (1.55) | 0.69 (1.43) | 0.60 (NS) |
| Median | +0.50 | +0.63 | |
| Range | −2.5 to +5.25 | −3.75 to +5.75 | |
| Visual acuity | |||
| Snellen acuity | 0.14 (0.09) | 0.31 (0.16) | <0.001 |
| Median | 0.10 | 0.30 | |
| Range | FC–0.50 | 0.03–0.60 | |
| Snellen lines | 13.3 (3.2) | 17.1 (2.9) | <0.001 |
| Median | 13 | 18 | |
| Range | 4–20 | 8–21 | |
| LogMar | 0.98 (0.36) | 0.59 (0.52) | <0.001 |
| Median | 1.00 | 0.53 | |
| Range | 0.30–2.40 | 0.22–1.52 | |
| Follow up | 9.2 (6.8) | 7.4 (4.5) | 0.30 (NS) |
| Median | 7.0 | 6.9 | |
| Range | 1.0–25.2 | 1.2–23.1 | |
| Intraocular pressure | 15.2 (3.6) | 15.5 (3.6) | 0.85 (NS) |
| Median | 16 | 16 | |
| Range | 10–24 | 9–24 | |
| Change in best VA | |||
| LogMar units | −0.27 (0.24) | 0.03 (0.21) | <0.001 |
| Snellen lines | 2.6 (2.2) | −0.3 (1.9) | <0.001 |
| Snellen acuity | 0.12 (0.13) | −0.02 (0.120 | <0.001 |
| Change in VA between baseline and end of follow up | |||
| LogMar units | −0.03 (0.33) | 0.13 (0.23) | <0.001 |
| Snellen lines | 0.4 (3.3) | −1.3 (2.3) | <0.001 |
| Snellen acuity | 0.03 (0.13) | −0.07 (0.12) | <0.001 |