Normal eyes

(n = 12)

PPG eyes

(n = 10)

early

UHFD eyes

(n = 10)

severe

UHFD eyes

(n = 10)

p-value

Age (year)

64.8 ± 10.2

55.2 ± 9.6

61.8 ± 10.0

59.4 ± 9.0

0.1453

Gender (M / F)

4/8

4/6

5/5

5/7

0.6330

IOP (mHg)

15.8 ± 3.3

16.0 ± 6.5

14.3 ± 3.5

13.2 ± 2.0

0.1608

Equivalent refractive error (D)

−0.54 ± 1.48

−2.24 ± 2.05

−3.30 ± 3.34

−2.38 ± 2.51

0.0696

MD value (dB)

1.45 ± 0.85

0.63 ± 1.67

−2.49 ± 0.80

8.50 ± 2.60

<0.0001

PSD value (dB)

1.68 ± 0.33

1.80 ± 0.30

−7.14 ± 3.35

13.07 ± 3.56

<0.0001