One-year natural course of corneal densitometry in high myopic patients after implantation of an implantable collamer lens (model V4c)

Table 1 The natural course of corneal densitometry (n = 26)

Variables	Pre-op	1 Day	1 Week	1 Month	3 Months	6 Months	1 Year	F value^a	P value
	Pre-op	Post-op	Post-op	Post-op	Post-op	Post-op	Post-op	F value^a	P value
	Mean±SD	Mean±SD	Mean±SD	Mean±SD	Mean±SD	Mean±SD	Mean±SD
AL0-2 mm	20.1 ± 2.8	20.1 ± 2.6	19.5 ± 2.3	19.5 ± 2.7	19.5 ± 2.2	18.8 ± 1.7	18.5 ± 2.7	1.510	0.177
CL0-2 mm	11.8 ± 1.1	11.7 ± 1.1	11.5 ± 1.1	11.5 ± 1.1	11.4 ± 0.8	11.2 ± 0.7	11.1 ± 1.1	1.589	0.153
PL0-2 mm	10.5 ± 0.9	10.3 ± 1.0	10.4 ± 0.8	10.4 ± 0.9	10.5 ± 0.7	10.3 ± 0.8	10.0 ± 0.9	0.836	0.543
TL0-2 mm	14.1 ± 1.5	14.1 ± 1.5	13.8 ± 1.3	13.8 ± 1.5	13.8 ± 1.1	13.5 ± 1.0	13.2 ± 1.5	1.426	0.207
AL2-6 mm	17.9 ± 2.2	18.5 ± 2.2	17.5 ± 2.0	17.3 ± 2.3	17.2 ± 1.8	16.7 ± 1.4^b	16.5 ± 2.1^b	2.798	0.013^*
CL2-6 mm	10.5 ± 0.9	11.0 ± 1.1	10.3 ± 0.9	10.3 ± 1.0	10.2 ± 0.8^b	10.0 ± 0.7^b	10.0 ± 0.9^b	3.750	0.002^**
PL2-6 mm	9.4 ± 0.7	9.5 ± 0.9	9.4 ± 0.7	9.4 ± 0.8	9.4 ± 0.7	9.3 ± 0.7	9.1 ± 0.7	1.087	0.372
TL2-6 mm	12.6 ± 1.2	13.0 ± 1.3	12.4 ± 1.2	12.3 ± 1.4	12.3 ± 1.0	12.0 ± 0.9	11.9 ± 1.2^b	2.719	0.015^*

Pre-op Pre-operation, Post-op Post-operation, AL Anterior Layer, CL Central Layer, PL Posterior Layer, TL Total Layer
* P<0.05; ** P<0.01
^a Mixed linear model
^b significant difference was detected when compared with the value obtained at the 1 day mark

ISSN: 1471-2415