Table 1 Characteristics of the study population of 42 healthy university students

Number

42

12 (29%)

30 (71%)

Age, years

25.0 ± 2.0

(21–30)

25.3 ± 2.2

24.8 ± 1.9

0.47

Systolic blood pressure, mmHg

124 ± 13.5

(95 to 154)

132 ± 15.4

121 ± 11.2

0.0094

Diastolic blood pressure, mmHg

77 ± 11.5

(52–104)

77 ± 12.2

78 ± 11.4

0.59

Choroidal thickness, μm

348 ± 104

(153–534)

380 ± 93

336 ± 107

0.22

Axial length, mm

24.0 ± 1.1

(21.2–27.3)

24.1 ± 0.87

24.0 ± 1.3

0.67

Spherical equivalent refraction, D

−0.56 ± 2.5

(−11.3 to 3.63)

0.0 ± 0.81

−1.25 ± 4.0

0.14

Time to rod intercept, min

7.3 ± 0.94

(5.1–10)

7.3 ± 1.3

7.4 ± 0.80

0.88

Rod adaptation rate, log /min

0.34 ± 0.055

(0.22–0.46)

0.36 ± 0.058

0.33 ± 0.053

0.098