Table 2.

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

Variable	S-Kappa (n = 81)	L-Kappa (n = 88)	Difference	p
logMAR	−0.04 [−0.05, −0.02]	−0.05 [−0.06, −0.04]	−0.01 [−0.03, 0.01]	.257
Postoperative MSE	0.21 [0.06, 0.36]	0.24 [0.09, 0.39]	0.03 [−0.17, 0.23]	.757
Strehl ratio (3 mm)	0.39 [0.36, 0.42]	0.32 [0.29, 0.35]	−0.06 [−0.11, −0.02]	.022*
Strehl ratio (6 mm)	0.17 [0.14, 0.19]	0.18 [0.15, 0.2]	0.01 [−0.03, 0.04]	.757
HOA (3 mm)	0.62 [0.54, 0.69]	0.77 [0.69, 0.84]	0.15 [0.05, 0.25]	.022*
HOA (6 mm)	0.77 [0.69, 0.84]	0.85 [0.78, 0.92]	0.08 [−0.01, 0.18]	.180
Horizontal Coma (3 mm)	0.06 [0.04, 0.08]	0.09 [0.07, 0.12]	0.04 [0.01, 0.06]	.042*
Horizontal Coma (6 mm)	0.17 [0.14, 0.2]	0.16 [0.13, 0.19]	−0.01 [−0.05, 0.03]	.757
Vertical Coma (3 mm)	0.06 [0.05, 0.08]	0.1 [0.08, 0.11]	0.03 [0.01, 0.05]	.022*
Vertical Coma (6 mm)	0.28 [0.23, 0.32]	0.2 [0.15, 0.24]	−0.08 [−0.14, −0.02]	.041*
Spherical aberrations (3 mm)	0.05 [0.03, 0.08]	0.09 [0.06, 0.12]	0.04 [0, 0.07]	.084
Spherical aberrations (6 mm)	0.27 [0.24, 0.31]	0.24 [0.21, 0.28]	−0.03 [−0.07, 0.01]	.257

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.