Table 3.
Comparison of adjusted post-operative metrics, accompanied by 95% confidence intervals and mean differences, between low and high Kappa angle groups for low myopia eyes.
| Variable | S-Kappa (n = 18) |
L-Kappa (n = 11) |
Difference | p |
|---|---|---|---|---|
| logMAR | −0.06 [−0.1, −0.02] | −0.11 [−0.15, −0.06] | −0.04 [−0.08, 0] | .274 |
| Postoperative MSE | 0.02 [−0.36, 0.39] | 0.15 [−0.23, 0.52] | 0.13 [−0.27, 0.53] | .970 |
| Strehl ratio (3 mm) | 0.41 [0.31, 0.51] | 0.41 [0.31, 0.51] | 0 [−0.1, 0.1] | .970 |
| Strehl ratio (6 mm) | 0.19 [0.11, 0.27] | 0.17 [0.09, 0.25] | −0.02 [−0.1, 0.06] | .970 |
| HOA (3 mm) | 0.53 [0.29, 0.76] | 0.55 [0.3, 0.8] | 0.02 [−0.22, 0.27] | .970 |
| HOA (6 mm) | 0.61 [0.41, 0.82] | 0.62 [0.41, 0.83] | 0.01 [−0.21, 0.22] | .970 |
| Horizontal Coma (3 mm) | 0.1 [0.04, 0.16] | 0.11 [0.04, 0.17] | 0.01 [−0.06, 0.07] | .970 |
| Horizontal Coma (6 mm) | 0.18 [0.09, 0.27] | 0.26 [0.17, 0.35] | 0.09 [0, 0.18] | .274 |
| Vertical Coma (3 mm) | 0.06 [0.01, 0.11] | 0.11 [0.05, 0.16] | 0.04 [−0.01, 0.1] | .367 |
| Vertical Coma (6 mm) | 0.2 [0.08, 0.32] | 0.2 [0.08, 0.33] | 0.01 [−0.12, 0.13] | .970 |
| Spherical Aberrations (3 mm) | 0.03 [−0.03, 0.09] | 0.05 [−0.01, 0.11] | 0.02 [−0.05, 0.09] | .970 |
| Spherical Aberrations (6 mm) | 0.23 [0.15, 0.31] | 0.24 [0.16, 0.32] | 0.02 [−0.07, 0.1] | .970 |
The reported means and the mean differences were computed from linear mixed models that adjusted for age, gender, and pre-operative MSE as covariates.
S-Kappa, small Kappa group; L-Kappa, large Kappa group; MSE, mean spherical error; logMAR, logarithm of the minimum angle of resolution. HOA, Higher-Order Aberrations; P, p value from linear mixed models.
*for p value < .05, ** for p value < .01.