Table 2.

Mean 1-Month Post-IRIS Data for Each Eye, Expressed as Difference From Pre-IRIS Values for Second-Order Zernike Coefficients (j = 3–5), HORMS, Refractive Power, and Mean Post-IRIS Structural Parameters

Parameter	Cat 1 OD	Cat 1 OS	Cat 2 OD	Cat 2 OS
ΔZernike coefficients, μm
ΔC3, astigmatism at 45°	−0.007 ± 0.092	−0.194 ± 0.128	0.205 ± 0.076	−0.198 ± 0.100
ΔC4, defocus	−0.564 ± 0.138	−0.415 ± 0.110	−0.562 ± 0.056	−1.215 ± 0.114
ΔC5, astigmatism at 0° or 90°	−0.426 ± 0.098	0.363 ± 0.095	0.107 ± 0.069	0.019 ± 0.093
ΔHORMS, μm	0.307 ± 0.045	0.282 ± 0.065	0.251 ± 0.041	0.416 ± 0.031
ΔRefractive power, D
ΔDefocus	−1.7 ± 0.4	−1.3 ± 0.3	−1.7 ± 0.2	−3.7 ± 0.3
ΔCylinder	−1.9 ± 0.4	−1.8 ± 0.5	−1.0 ± 0.4	−1.0 ± 0.4
Thickness, μm
Epithelial	67 ± 3	42 ± 3	61 ± 7	62 ± 4
Stromal	503 ± 2	474 ± 3	546 ± 8	551 ± 6
Radius of curvature, mm
Tear film-epithelium	8.7 ± 0.2	8.8 ± 0.3	8.8 ± 0.2	8.5 ± 0.2
Epithelium-stroma	8.6 ± 0.1	8.6 ± 0.2	8.8 ± 0.3	8.6 ± 0.2
Stroma-endothelium	7.8 ± 0.2	8.1 ± 0.2	7.8 ± 0.2	7.6 ± 0.2

The values are given as mean ± SD.