Table 4.

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

Variable	Low-Kappa (n = 40)	High-Kappa (n = 49)	Difference	p
logMAR	−0.05 [−0.07, −0.03]	−0.04 [−0.06, −0.02]	0.01 [−0.02, 0.03]	.744
Postoperative MSE	0.28 [0.08, 0.48]	0.32 [0.14, 0.5]	0.04 [−0.21, 0.3]	.744
Strehl ratio (3 mm)	0.39 [0.34, 0.43]	0.32 [0.28, 0.36]	−0.07 [−0.13, −0.01]	.097
Strehl ratio (6 mm)	0.16 [0.12, 0.19]	0.17 [0.13, 0.2]	0.01 [−0.04, 0.05]	.744
HOA (3 mm)	0.63 [0.52, 0.73]	0.81 [0.71, 0.9]	0.18 [0.04, 0.32]	.097
HOA (6 mm)	0.76 [0.66, 0.86]	0.88 [0.79, 0.97]	0.12 [−0.01, 0.26]	.174
Horizontal Coma (3 mm)	0.05 [0.03, 0.08]	0.08 [0.06, 0.11]	0.03 [−0.01, 0.07]	.288
Horizontal Coma (6 mm)	0.19 [0.15, 0.24]	0.13 [0.1, 0.17]	−0.06 [−0.11, −0.01]	.097
Vertical Coma (3 mm)	0.07 [0.04, 0.09]	0.1 [0.08, 0.12]	0.04 [0, 0.07]	.097
Vertical Coma (6 mm)	0.25 [0.19, 0.31]	0.2 [0.15, 0.26]	−0.04 [−0.12, 0.03]	.506
Spherical Aberrations (3 mm)	0.06 [0.03, 0.1]	0.08 [0.05, 0.11]	0.02 [−0.02, 0.06]	.592
Spherical Aberrations (6 mm)	0.25 [0.2, 0.29]	0.23 [0.19, 0.27]	−0.02 [−0.07, 0.04]	.744

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.