Table 5.

Comparison of adjusted post-operative metrics, accompanied by 95% confidence intervals and mean differences, between low and high kappa angle groups for high myopia eyes.

Variable	Low-Kappa (n = 23)	High-Kappa (n = 28)	Difference	p
logMAR	0 [−0.04, 0.03]	−0.04 [−0.07, −0.01]	−0.04 [−0.08, −0.01]	.037*
Postoperative MSE	0.23 [−0.08, 0.55]	0.15 [−0.11, 0.41]	−0.08 [−0.41, 0.24]	.665
Strehl ratio (3 mm)	0.37 [0.3, 0.45]	0.29 [0.23, 0.36]	−0.08 [−0.16, 0]	.086
Strehl ratio (6 mm)	0.17 [0.11, 0.23]	0.2 [0.14, 0.25]	0.03 [−0.04, 0.09]	.499
HOA (3 mm)	0.66 [0.47, 0.85]	0.79 [0.61, 0.96]	0.13 [−0.06, 0.31]	.317
HOA (6 mm)	0.88 [0.72, 1.05]	0.9 [0.76, 1.05]	0.02 [−0.15, 0.19]	.809
Horizontal Coma (3 mm)	0.04 [−0.01, 0.09]	0.11 [0.07, 0.15]	0.07 [0.02, 0.12]	.030*
Horizontal Coma (6 mm)	0.13 [0.06, 0.2]	0.17 [0.11, 0.23]	0.04 [−0.03, 0.11]	.383
Vertical Coma (3 mm)	0.06 [0.01, 0.1]	0.08 [0.04, 0.12]	0.02 [−0.02, 0.06]	.439
Vertical Coma (6 mm)	0.38 [0.28, 0.48]	0.17 [0.09, 0.26]	−0.21 [−0.31, −0.11]	.001**
Spherical Aberrations (3 mm)	0.06 [0, 0.11]	0.12 [0.08, 0.17]	0.07 [0.01, 0.12]	.037*
Spherical Aberrations (6 mm)	0.35 [0.28, 0.41]	0.26 [0.2, 0.31]	−0.09 [−0.16, −0.02]	.037*

The reported means and the mean difference were computed from a linear mixed model 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.