Table 2 Corneal density and lens density measured by CASIA2 and Pentacam

Optical density (%GSU)

mean ± SD

range [min, max]

mean ± SD

range [min, max]

r

P

Cornea 0-2 mm

37.89 ± 1.25

[34.80, 40.80]

15.15 ± 2.34

[11.60, 19.20]

0.44

< 0.001

Cornea 2-6 mm

22.93 ± 1.00

[20.80, 24.80]

13.90 ± 2.12

[11.00, 18.00]

0.7

< 0.001

Cornea 6-10 mm

20.71 ± 2.04

[16.40, 27.20]

14.59 ± 2.62

[10.50, 23.00]

0.65

< 0.001

Cornea 10-12 mm

36.75 ± 4.71

[25.60, 48.00]

25.15 ± 5.17

[14.50, 41.80]

0.66

< 0.001

Cornea 0-12 mm

26.24 ± 2.29

[21.20, 31.20]

15.92 ± 2.26

[12.00, 21.50]

0.57

< 0.001

Lens

11.69 ± 1.34

[8.80, 15.20]

8.08 ± 0.46

[7.00, 9.30]

0.98

< 0.001