Table 1 Demographic characteristics of the study population

Patients (n)

20

20

19

19

Number of eyes (n)

20

20

19

19

Gender (male: female)

5:15

13:7

13:6

12:7

0.0204*

Age (years)

 Mean ± SD

73.5 ± 7.1

71.2 ± 10.2

61.2 ± 14.8

75.6 ± 12.8

 < .005^{†, ††††}

 [range]

58–87

52–87

39–87

39–93

IOP (mmHg)

 Mean ± SD

13.6 ± 1.7

15.7 ± 4.0

22.4 ± 11.9

29.7 ± 9.3^† < .001,

 < .0001**^{†, †††}

 [range]

10–16

8–25

7–52

13–48