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Table 1 Comparison of demographic and preoperative ocular characteristics between eyes with ICL Implantation stratified according to the ICA value

From: The influence of iris -ciliary angle (ICA) on the vault after implantation of V4c implantable collamer lens: a chain mediation model of ICL haptic related factors

Parameters

Low ICA group

Moderate ICA group

High ICA group

P Value

Age

24.18 ± 4.28

25.48 ± 4.99

26.92 ± 5.82

0.15

Sex(male,%)

14.81

26.35

32.00

0.33

T/I(%)

25.92

32.55

20.00

0.40

ICL Size(mm)

12.63 ± 0.38

12.67 ± 0.37

12.65 ± 0.44

0.87

Sph(D)

-7.25(-8.37,-6.25)

-7.50(-8.75,-5.75)

-9.0(-9.62,-6.12)

0.06

Cly(D)

-0.75(-1.0,-0.25)

-0.75(-1.25,-0.50)

-1.25(-1.50,-0.75)

0.14

SE(D)

-8.94(-7.50,-6.37)

-8.06(-9.37,-6.25)

-9.50(-10.43,-7.13)

0.05

IOP(mmHg)

14.51 ± 2.77

14.29 ± 2.65

14.30 ± 2.74

0.92

AL(mm)

26.03 ± 1.48

26.02 ± 1.31

25.95 ± 1.25

0.97

WTW(mm)

11.42 ± 0.42

11.39 ± 0.37

11.27 ± 0.32

0.27

ACD(mm)

3.23 ± 0.28

3.21 ± 0.26

3.14 ± 0.26

0.37

ACA(°)

38.58 ± 3.59

38.64 ± 5.12

37.57 ± 5.19

0.61

ACV(mm3)

199.48 ± 38.08

200.90 ± 31.35

194.32 ± 35.46

0.66

PD(mm)

3.26(2.95,3.26)

3.15(2.84,3.15)

3.05(2.86,3.05)

0.54

LT(mm)

3.79 ± 0.22

3.81 ± 0.30

3.91 ± 0.26

0.23

STShorizontal (mm)

11.31 ± 0.60

11.40 ± 0.43

11.33 ± 0.47

0.57

STSvertical (mm)

11.78 ± 0.60

11.75 ± 0.48

11.61 ± 0.49

0.42

ICA(°)

24.31 ± 8.58

51.49 ± 9.60

79.77 ± 9.82

< 0.001abc

TCA(°)

104.63 ± 9.56

117.17 ± 10.06

131.55 ± 7.76

< 0.001abc

CBTmax (mm)

1.28 ± 0.14

1.17 ± 0.13

1.03 ± 0.13

< 0.001abc

CPlength (mm)

0.89 ± 0.14

0.77 ± 0.11

0.76 ± 0.14

< 0.001ac

TCPD (mm)

0.94 ± 0.13

1.07 ± 0.12

1.13 ± 0.14

< 0.001ac

CLR (μm)

0.41 ± 0.16

0.39 ± 0.22

0.46 ± 0.22

0.24

  1. T/I the ratio of toric-ICL to ICL implanted eyes, ICL Size the implanted ICL size, Sph manifest refractive sphere, Cly manifest refractive cylinder, SE spherical equivalent, IOP intraocular pressure, AL axial length, WTW horizontal white-to-white diameter, ACD anterior chamber depth, ACA anterior chamber angle, ACV anterior chamber volume, PD pupil diameter, LT lens thickness, STS sulcus-to-sulcus diameter, ICA iris-ciliary angle, TCA trabecular-ciliary angle, CBTmax maximum ciliary body thickness, CPlength ciliary process length, TCPD trabecular ciliary process distance, CLR the crystalline lens rise
  2. a P < 0.01for the difference between low ICA and moderate ICA group
  3. b P < 0.01 for the difference between moderate ICA and high ICA group
  4. c P < 0.01 for the difference between low ICA and high ICA group