Correlations among Corneal Biomechanical Parameters, Stiffness, and Thickness Measured Using Corvis ST and Pentacam in Patients with Ocular Hypertension

Table 3

Corvis ST parameters before and after glaucoma medication treatment.

Factors	Baseline (mean ± SD)	Eyes with topical treatment (mean ± SD)	value
A1L (mm)	2.33 ± 0.26	2.34 ± 0.34	0.937
A1V (m/s)	0.11 ± 0.02	0.14 ± 0.02	<0.001^#
A1T (ms)	8.38 ± 1.03	7.55 ± 0.38	<0.001^#
A2L (mm)	2.10 ± 0.44	2.06 ± 0.37	0.565
A2V (m/s)	−0.21 ± 0.05	−0.26 ± 0.02	<0.001^#
A2T (ms)	21.32 ± 0.96	21.97 ± 0.48	0.002^#
Changes AL (A1L-A2L)	0.23 ± 0.44	0.25 ± 0.51	0.32
Changes AV (A1V-A2V)	0.32 ± 0.06	0.41 ± 0.04	<0.001^#
Changes AT (A1T-A2T)	−12.94 ± 1.81	−14.42 ± 0.67	<0.001^#
PDHC (mm)	4.36 ± 0.57	4.91 ± 0.24	<0.001^#
HCR (mm)	7.69 ± 1.12	7.48 ± 0.82	0.236
DAHC (mm)	0.88 ± 0.1	1.04 ± 0.08	<0.001^#
DA ratio	3.70 ± 0.64	4.07 ± 0.44	0.002^#
HCT (ms)	17.36 ± 0.46	17.29 ± 0.54	0.560
SSI	1.03 ± 0.22	0.94 ± 0.15	0.010^#
SP-A1	128.35 ± 17.85	109.08 ± 11.79	<0.001^#
IR	6.72 ± 1.54	7.91 ± 1.04	<0.001^#
ARTH	531.2 ± 98.29	499.30 ± 18.55	0.004^#

Paired t-test was used in comparison of any difference across time points adjusted. Data were showed in the form of Mean (standard deviation). A1L: applanation1 1ength; A1V: applanation1 velocity; A1T: applanation 1 time; A2L: applanation2 1ength; A2V: applanation2 velocity; A2T: applanation 2 time; Changes AL (A1L-A2L): A1L minus A2L; Changes AV (A1V-A2V): A1L minus A2L; Changes AT (A1T-A2T): A1L minus A2L; PDHC: highest concavity peak distance; HCR: highest concavity radius; DAHC: highest concavity def amp; HCT: highest concavity time; SSI: stress-strain index; IOP: intraocular pressure; SP-A1: stiffness parameter at first applanation; IR: inter radius; ARTH: amobrosio relational thickness horizontal. ^#Significant differences were found by .