Table 3.

Comparison of Mean Corneal Thicknesses and Radii of Curvature Pre-IRIS and 1 Month Post-IRIS, Averaged Across All Four Eyes

Parameter	Pre-IRIS	1 Month Post-IRIS	t-Test
Thickness, μm
Epithelial	57 ± 4	58 ± 4	t3 = 0.116, P = 0.915
Stromal	531 ± 6	519 ± 5	t3 = −2.056, P = 0.132
Radius of curvature, mm
Tear film-epithelium	8.5 ± 0.2	8.7 ± 0.2	t3 = 0.784, P = 0.490
Epithelium-stroma	8.4 ± 0.2	8.6 ± 0.2	t3 = 1.063, P = 0.366
Stroma-endothelium	7.6 ± 0.3	7.8 ± 0.2	t3 = 0.469, P = 0.671

Paired, two-tailed Student's t-tests revealed none of these changes to be statistically significant. The values are given as mean ± SEM.