Skip to main content

Table 1 Demographics and biometric data of ortho-K users at baseline

From: Efficacy of small back optic zone design on myopia control for corneal refractive therapy (CRT): a one-year prospective cohort study

Parameter

6-mm group

5-mm group

P value

 

(n = 147)

(n = 154)

 

Age (years)

9.33 ± 1.77

9.67 ± 1.93

0.12

Male/female

72/75

82/72

0.46

AL (mm)

24.65 ± 0.76

24.68 ± 0.89

0.74

SER (D)

− 2.60 ± 1.24

− 2.86 ± 1.62

0.12

Ave-K (D)

43.34 ± 1.38

43.26 ± 1.85

0.67

PD (mm)

4.27 ± 0.58

4.36 ± 0.76

0.25

e value

0.54 ± 0.10

0.52 ± 0.11

0.08

  1. 6 mm = ortho-K lenses with a BOZD of 6 mm; 5 mm = ortho-K lenses with a BOZD of 5 mm; AL = axial length; SER = spherical equivalent refractive error; Ave-K = average K reading; PD = pupil diameter