Skip to main content

Table 2 Characteristics of eyes which underwent implantable collamer lens implantation after previous laser vision correction surgery according to the types of previous laser vision correction

From: 3-month surgical outcomes of Implantable Collamer Lens implantation for myopic regression after laser vision correction surgeries: a retrospective case series

Type of previous LVC

PRK (n = 21)

LASIK (n = 9)

P

No. of eyes (right/left)

11/10

4/5

> 0.999

Age (years)

33.38 ± 4.04

38.78 ± 3.00

0.001*

Sex (M/F)

6/15

2/7

> 0.999

Time interval after previous surgery (months)

71.29 ± 5.82

77.89 ± 6.59

0.022*

Central corneal thickness (μm)

452.95 ± 34.69

463.22 ± 39.12

0.455

Preoperative mean keratometry (D)

38.97 ± 1.50

38.94 ± 1.18

0.700

LogMAR UDVA

 Preoperative

0.70 ± 0.28

0.69 ± 0.43

0.982

 3-month postoperative

−0.04 ± 0.07

0 ± 0.16

0.657

P (preop vs 3-month postop)

< 0.001

0.008

 

LogMAR CDVA

 Preoperative

0

0.03 ± 0.07

0.349

 3-month postoperative

−0.05 ± 0.06

0 ± 0.14

0.563

P (preop vs 3-month postop)

0.006

0.114

 

Spherical error (D)

 Preoperative

−2.00 ± 0.48

−3.08 ± 1.95

0.504

 3-month postoperative

−0.02 ± 0.28

0.22 ± 0.32

0.051

P (preop vs 3-month postop)

< 0.001

0.008

 

Cylindrical error (D)

 Preoperative

−0.37 ± 0.42

− 0.36 ± 0.33

0.981

 3-month postoperative

− 0.24 ± 0.39

−0.19 ± 0.27

0.918

P (preop vs 3-month postop)

0.146

0.301

 

Spherical equivalent (D)

 Preoperative

−2.17 ± 0.42

−3.26 ± 2.00

0.733

 3-month postoperative

−0.14 ± 0.31

0.13 ± 0.30

0.050

P (preop vs 3-month postop)

< 0.001

0.008

 

Endothelial cell count (/mm2)

 Preoperative

2986 ± 314

3053 ± 233

0.556

 3-month postoperative

2966 ± 388

3076 ± 321

0.319

P (preop vs 3-month postop)

0.476

0.859

 
  1. PRK photorefractive keratectomy; LASIK laser in situ keratomileusis; D diopters; UDVA uncorrected distance visual acuity; CDVA corrected distance visual acuity; Values are presented as mean ± standard deviation (range) * significant difference between previous PRK and LASIK group