Correlation of myopia onset and progression with corneal biomechanical parameters in children

Table 4 Correlation between spherical equivalent, intraocular pressure, and axial length growth and the change in corneal biomechanical parameters in subjects in the myopic group

	ΔSE (D)		ΔIOP (mmHg)		ΔAL (mm)		CCT (μm)		Km
	ρ	P value	ρ	P value	ρ	P value	ρ	P value	ρ	P value
ΔA1V	-0.0391	0.5758	0.0460	0.5107	-0.0032	0.9631	-0.5873	< 0.0001	0.1010	0.1478
ΔA1L	0.0370	0.5962	-0.0673	0.3350	-0.0818	0.2415	0.4236	< 0.0001	-0.0716	0.3053
ΔA1T	0.0257	0.7133	-0.0917	0.1889	-0.0909	0.1926	0.4629	< 0.0001	0.0080	0.9084
ΔA1DA	0.0344	0.6230	-0.0586	0.4013	0.0455	0.5147	0.3530	< 0.0001	0.0475	0.4966
ΔA2V	0.2027	0.0034	-0.1075	0.1232	0.3121	< 0.0001	0.5029	< 0.0001	0.0472	0.4994
ΔA2L	0.1397	0.0446	-0.1459	0.0360	-0.0971	0.1640	0.4505	< 0.0001	-0.0972	0.1637
ΔA2T	0.0772	0.2691	-0.0718	0.3042	-0.0897	0.1987	0.4920	< 0.0001	0.0244	0.7268
ΔA2DA	0.0462	0.5089	-0.0321	0.6459	0.0677	0.3327	0.3561	< 0.0001	0.0331	0.6357
ΔHCT	0.0035	0.9601	-0.0073	0.9171	-0.1120	0.1082	0.0465	0.5061	0.0717	0.3047
ΔHCR	0.0081	0.9073	-0.0323	0.6446	-0.0508	0.4669	0.5378	< 0.0001	-0.3190	< 0.0001
ΔPD	-0.1331	0.0559	0.1361	0.0505	0.4427	< 0.0001	0.3246	< 0.0001	-0.3320	< 0.0001
ΔDA	-0.1130	0.1049	0.1814	0.0089	0.0391	0.5763	0.2474	0.0003	0.2125	0.0021
ΔIR	-0.1841	0.0079	0.2674	0.0001	0.0228	0.7439	0.4886	< 0.0001	0.2615	0.0001
ΔARTh	0.0542	0.4378	-0.0671	0.3365	0.0164	0.8150	0.3274	< 0.0001	-0.0726	0.2983
ΔSP-A1	0.0372	0.5951	-0.0209	0.7655	-0.0623	0.3727	0.4282	< 0.0001	0.0074	0.9161
ΔCBI	0.0321	0.6461	-0.0160	0.8187	-0.0534	0.4450	0.3329	< 0.0001	0.1010	0.1474
ΔTBI	0.0234	0.7378	-0.0187	0.7888	-0.0143	0.8381	0.0247	0.7238	0.0589	0.3988

SE: Spherical equivalent; IOP: Intraocular pressure; AL: Axial length; CCT: Central corneal thickness; A1V: First velocity of applanation; A1L: First applanation length; A1T: First applanation time; A1DA: First applanation deformation amplitude; A2V: Second velocity of applanation; A2L: Second applanation length; A2T: Second applanation time; A2D: Second applanation deformation; HCT: Time from the start until the highest concavity; HCR: Central curvature radius at highest concavity; PD: Peak distance; DA: Deformation amplitude; IR: Integrated radius; ARTh: ambrosia relational thickness-horizontal; SP-A1: First applanation stiffness parameter; CBI: Corvis biomechanical index; TBI: Topographic and biomechanics index.