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Table 3 Comparison of Humphrey visual field sensitivities and indices between controls, mild, moderate and severe OSAHS patients

From: Visual field defects and retinal nerve fiber imaging in patients with obstructive sleep apnea syndrome and in healthy controls

   

Normality S-W

Homogeneity Test Levene

ANOVA / Kruskall W

 

Severity

Average ± SD

[Min - Max]

p-value

p-value

F

p-value

Average sensitivity (dB)

Control (N = 38)

29.7 ± 1.3 [26.6–31.8]

0.04

0.61

/

0.2

Mild- Moderate (N = 29)

29.1 ± 1.6 [23.9–31.1]

0.4

Severe (N = 34)

29.4 ± 1.3 [26.0–32]

0.61

VF superior division (dB)

Control (N = 38)

30.1 ± 1.5 [27–32.9]

0.158

0.83

2.49

0.08*

Mild- Moderate (N = 29)

29.2 ± 1.6 [26.3–32.2]

0.7

Severe (N = 34)

29.5 ± 1.5 [25.1–32.3]

0.19

VF inferior division (dB)

Control (N = 38)

31.1 ± 1.4 [27.3–33.3]

0.01

0.62

/

0.46

Mild- Moderate (N = 29)

30.9 ± 1.3 [26.6–32.9]

0.008

Severe (N = 34)

30.9 ± 1.4 [27.6–33.7]

0.91

VF central division (dB)

Control (N = 38)

27.6 ± 1.4 [23.3–31.1]

0.46

0.11

0.73

0.49*

Mild- Moderate (N = 29)

27.2 ± 1.6 [24.3–31.4]

0.49

Severe (N = 34)

27.6 ± 2.0 [24–32.1]

0.17

VF temporal division (dB)

Control (N = 38)

30.2 ± 2 [25.7–33.3]

0.06

0.08

/

0.34

Mild- Moderate (N = 29)

29.7 ± 1.9 [26.3–33]

0.03

Severe (N = 34)

29.8 ± 1.7 [25.3–33]

0.33

VFI (dB)

Control (N = 38)

99.2 ± 0.8 [97–100]

< 0.001

0.63

/

0.6

Mild- Moderate (N = 29)

98.9 ± 1.0 [96–100]

0.001

Severe (N = 34)

99.0 ± 0.9 [97–100]

< 0.001

MD (dB)

Control (N = 38)

0.04 ± 1.1 [(−2.8) – 1.8]

0.08

0.92

1.66

0.19*

Mild- Moderate (N = 29)

−0.4 ± 1.12 [(−2.5) – 1.6]

0.21

Severe (N = 34)

−0.4 ± 1.2 [(−3.8) - 1.7]

0.44

PSD (dB)

Control (N = 38)

1.5 ± 0.3 [0.9–2.6]

0.01

0.1

/

0.97

Mild- Moderate (N = 29)

1.6 ± 0.9 [1.0–5.9]

0.002

Severe (N = 34)

1.6 ± 0.4 [0.9–2.8]

< 0.001

  1. VF visual field, VFI visual field index, MD mean deviation, PSD pattern standard deviation, S-W Shapiro-Wilk, Kruskall W Kruskall Wallis, N number of eyes
  2. *ANOVA test
  3. Kruskal Wallis