Table 4.
Descriptive data (subjective refraction) and visual acuity 6 months postoperatively.
| Parameter | Age 20–45 y.o. (N = 106) |
Age 45–54 y.o. (N = 34) |
Total (N = 140) | p-value |
|---|---|---|---|---|
| Sphere (D) | W = 1801, p = 0.998, r = 0.000a | |||
| Range | − 0.50, 1.50 | − 0.25, 0.75 | − 0.50, 1.50 | |
| Mean (SD) | 0.29 (0.37) | 0.29 (0.25) | 0.29 (0.35) | |
| Median (Q1,Q3) | 0.25 (0.00, 0.50) | 0.25 (0.06, 0.50) | 0.25 (0.00, 0.50) | |
| Cylinder (D) | W = 1790.5, p = 0.950, r=− 0.005a | |||
| Range | − 0.75, 0.00 | − 0.50, 0.00 | − 0.75, 0.00 | |
| Mean (SD) | − 0.12 (0.17) | − 0.12 (0.19) | − 0.12 (0.18) | |
| Median (Q1,Q3) | 0.00 (− 0.25, 0.00) | 0.00 (− 0.25, 0.00) | 0.00 (− 0.25, 0.00) | |
| Spherical Equivalent (D) | W = 1747.5, p = 0.790, r=− 0.022a | |||
| Range | − 0.62, 1.50 | − 0.25, 0.75 | − 0.62, 1.50 | |
| Mean (SD) | 0.23 (0.37) | 0.22 (0.26) | 0.23 (0.35) | |
| Median (Q1,Q3) | 0.25 (0.00, 0.38) | 0.25 (0.03, 0.38) | 0.25 (0.00, 0.38) | |
| CDVA | W = 1460, p = 0.056, r=− 0.162a | |||
| Range | − 0.10, 0.00 | − 0.10, 0.00 | − 0.10, 0.00 | |
| Mean (SD) | − 0.03 (0.04) | − 0.01 (0.03) | − 0.03 (0.04) | |
| Median (Q1,Q3) | 0.00 (− 0.04, 0.00) | 0.00 (− 0.03, 0.00) | 0.00 (− 0.04, 0.00) | |
| UDVA | W = 1921.5, p = 0.308, r=− 0.086a | |||
| Range | − 0.10, 0.10 | − 0.00, 0.05 | − 0.10, 0.10 | |
| Mean (SD) | 0.00 (0.02) | 0.00 (0.01) | 0.00 (0.02) | |
| Median (Q1,Q3) | 0.00 (0.00, 0.00) | 0.00 (0.00, 0.00) | 0.00 (0.00, 0.00) | |
y.o.: years old, CDVA: corrected distance visual acuity, UDVA: uncorrected distance visual acuity, D: diopter, SD: standard deviation, Q1: first quartile, Q3: third quartile.
aMann-Whitney test.