Evaluation of Disk Halo Size after Implantation of a Collamer Lens with a Central Hole (ICL V4c)

Table 3

Correlation analysis between age, spherical equivalent refraction, pupil parameters, and halo radius (arc minutes).

Variables	Preoperation		Postoperative 1 week		Postoperative 1 month		Postoperative 3 months
	R		R		R		R
Age (years)	−0.072	0.649	0.267	0.088	−0.010	0.950	−0.025	0.875
Preoperative SE (D)	−0.407	0.008	−0.088	0.579	−0.211	0.180	−0.233	0.137
Initial pupil diameter (mm)	0.069	0.664	0.230	0.142	0.325	0.036	0.446	0.003
Amplitude of contraction (mm)	−0.072	0.649	0.237	0.131	0.285	0.067	0.192	0.223
Latency of contraction (ms)	−0.090	0.571	−0.191	0.225	−0.115	0.467	−0.145	0.361
Duration of contraction (ms)	0.099	0.534	−0.014	0.931	−0.179	0.256	0.037	0.815
Velocity of contraction (mm/s)	0.018	0.912	0.253	0.106	0.252	0.108	0.149	0.345
Latency of dilation (ms)	−0.091	0.567	−0.092	0.564	−0.291	0.062	−0.046	0.773
Duration of dilation (ms)	−0.064	0.686	0.074	0.641	0.278	0.075	−0.088	0.578
Velocity of dilation (mm/s)	0.071	0.653	0.286	0.066	0.470	0.002	0.294	0.058
Maximum pupil diameter (mm)	0.169	0.285	0.371	0.016	0.365	0.017	0.483	0.001
Minimum pupil diameter (mm)	0.130	0.412	0.164	0.299	0.307	0.048	0.425	0.005
Average pupil diameter (mm)	−0.043	0.787	0.221	0.159	0.333	0.031	0.474	0.002

SE = spherical equivalent, D = diopters, and R = correlation coefficient.