Corneal Cap Thickness and Its Effect on Visual Acuity and Corneal Biomechanics in Eyes Undergoing Small Incision Lenticule Extraction

Table 3

Comparison of intraocular pressure and other corneal biomechanical characteristics preoperatively and at month 3 (mean ± SD).

	110 cap ()	150 cap ()	value
Pre-IOP (mmHg)	17.7 ± 1.4	17.9 ± 1.1	0.35
Post-IOP (mmHg) month 3	19.9 ± 1.5	19.0 ± 1.0	<0.001
Pre-AP1 (mm)	1.78 ± 0.05	1.73 ± 0.11	0.22
Post-AP1 (mm) month 3	1.61 ± 0.29	1.67 ± 0.20	0.59
Pre-AP2 (mm)	1.62 ± 0.37	1.67 ± 0.40	0.63
Post-AP2 (mm) month 3	1.34 ± 0.44	1.36 ± 0.44	0.83
Pre-PD (mm)	4.70 ± 0.92	3.83 ± 1.36	0.08
Post-PD (mm) month 3	3.98 ± 1.44	4.11 ± 1.46	0.82
Pre-DA (mm)	1.02 ± 0.05	1.00 ± 0.06	0.10
Post-DA (mm) month 3	1.09 ± 0.07	1.05 ± 0.24	0.59

AP1, the first applanation; AP2, the second applanation; PD, peak distance; DA, deformation amplitude.