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Table 1 Demographic and clinical data for patients with different axial lengthsa

From: Measurement of crystalline lens tilt in high myopic eyes before cataract surgery using swept-source optical coherence tomography

AL (mm)

< 24.5

24.5~26

26~28

28~30

> 30

P valueb

Correlation with ALc

21.40–24.49

24.51–25.90

26.02–27.97

28.12–29.92

30.08–37.96

Subjects (n)

131

25

52

29

42

/

/

Right/left eye

68/63

14/11

21/31

15/14

25/17

0.425

/

ACD (mm)

2.34 ± 0.46

(1.16–3.39)

2.73 ± 0.31

(2.10–3.30)

2.93 ± 0.35

(2.07–4.38)

< 0.001d

r = 0.521

P < 0.001d

CCT (mm)

0.54 ± 0.03

(0.45–0.64)

0.56 ± 0.04

(0.51–0.70)

0.55 ± 0.04

(0.46–0.64)

0.027d

r = 0.094

P = 0.116

LT (mm)

4.51 ± 0.54

(3.25–5.81)

4.38 ± 0.49

(3.27–5.36)

4.34 ± 0.42

(3.28–5.79)

0.023d

r = − 0.116

P = 0.053

Flat K (D)

43.01 ± 1.54

(40.16–47.62)

42.02 ± 1.44

(39.09–44.61)

42.03 ± 1.50

(36.29–45.32)

< 0.001d

r = − 0.333

P < 0.001d

Steep K (D)

44.00 ± 1.61

(40.99–48.43)

43.02 ± 1.65

(39.33–45.56)

43.23 ± 1.71

(36.89–46.88)

< 0.001d

r = − 0.241

P < 0.001d

Average K (D)

43.51 ± 1.53

(40.61–48.04)

42.52 ± 1.52

(39.25–44.99)

42.63 ± 1.56

(36.59–45.54)

< 0.001d

r = − 0.293

P < 0.001d

  1. AL = axial length; ACD = anterior chamber depth (from the corneal endothelium to the anterior lens capsule); CCT = central corneal thickness; LT = lens thickness; K = (conventional) keratometry
  2. a Data are presented as mean ± standard deviation; range is listed below in brackets
  3. b Differences among three groups [groups E (AL < 24.5 mm), M (AL 24.5–26 mm), and H (AL > 26 mm)] were analyzed with one-way ANOVA, and a χ2 test was used to compare categorical data
  4. c Correlations between selected variables and AL were analyzed with Pearson’s correlation test
  5. d Statistically significant (P < 0.05)