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Table 1 Characteristics of the participants in the myopia group

From: Increasing myopic refraction reduces random dot stereopsis in Chinese myopic patients: a cross-sectional study

Variables

Total

(n = 988)

Mild myopia

(n = 119)

Moderate myopia

(n = 531)

High myopia

(n = 338)

P value

Sexa

    

<0.001

Male

468 (47.4%)

83 (69.7%)

234 (44.1%)

151 (44.7%)

 

Female

520 (52.6%)

36 (30.3%)

297 (55.9%)

187 (55.3%)

 

Ageb (year)

25.4 ± 6.18

23.6 ± 5.86

26.2 ± 6.37

24.7 ± 5.79

<0.001

Anisometropiab (D)

0.51 ± 0.46

0.60 ± 0.56

0.48 ± 0.44

0.54 ± 0.45

0.018

SEb (D)

5.18 ± 1.97

2.14 ± 0.58

4.48 ± 0.85

7.34 ± 1.18

<0.001

Astigmatismb (D)

0.92 ± 0.70

0.60 ± 0.52

0.82 ± 0.65

1.18 ± 0.76

< 0.001

BCVAb (LogMAR)

-0.01 ± 0.03

0.00 ± 0.02

0.00 ± 0.03

-0.01 ± 0.03

0.289

Divisionb

-7.56 ± 5.91

-6.98 ± 4.90

-7.43 ± 5.00

-7.98 ± 7.40

0.227

Fusionb

4.02 ± 4.89

3.77 ± 3.61

4.21 ± 5.21

3.79 ± 4.76

0.411

PEP_Hori_Bigb

22.6 ± 43.2

23.1 ± 39.6

20.9 ± 41.3

25.0 ± 47.1

0.402

PEP_Vect_Bigb

5.51 ± 4.91

4.93 ± 4.09

5.41 ± 4.45

5.87 ± 5.76

0.161

PEP_Hori_Smallb

28.9 ± 55.3

25.9 ± 39.2

26.8 ± 54.0

33.2 ± 61.7

0.209

PEP_Vect_Smallb

3.87 ± 5.57

3.51 ± 3.63

3.57 ± 5.04

4.48 ± 6.77

0.049

Fixational eye movementa

0.148

Normal

694 (70.3%)

82 (68.9%)

387 (72.9%)

225 (66.8%)

 

Abnormal

293 (29.7%)

37 (31.1%)

144 (27.1%)

112 (33.2%)

 

SNRa

    

0.002

Normal

258 (37.3%)

46 (51.7%)

140 (37.9%)

72 (30.9%)

 

Abnormal

433 (62.7%)

43 (48.3%)

229 (62.1%)

161 (69.1%)

 

RDS0.8a

    

0.443

Normal

935(94.6%)

110(92.4%)

506(95.3%)

319(94.4%)

 

Abnormal

53(5.4%)

9(7.6%)

25(4.7%)

19(5.6%)

 

RDS1.5a

    

0.015

Normal

154 (15.6%)

22 (18.5%)

95 (17.9%)

37 (10.9%)

 

Abnormal

834 (84.4%)

97 (81.5%)

436 (82.1%)

301 (89.1%)

 
  1. SE: all myopic values were reported as absolute values; BCVA: best corrected visual acuity; LogMAR: logarithm of the minimum angle of resolution; PEP_Hori_Big: horizontal PEP (target 3°); PEP_Vect_Big: vertical PEP (target 3°); PEP_Hori_Small: horizontal PEP (target 1°); PEP_Vect_Small: vertical PEP (target 1°); SNR: signal‒noise ratio; RDS0.8: stereopsis measured via random dot stereograms at 0.8 m from the screen; RDS1.5: stereopsis measured via random dot stereograms at 1.5 m from the screen; mild myopia: SE >-3.00 D and ≤-0.50 D; moderate myopia: SE >-6.00 D and ≤-3.00 D; high myopia: SE ≤-6.00 D
  2. a Chi-square test was used
  3. b One-way ANOVA was used