Table 1 Description of the basic information

Age

Mean(SD)

57.00 (4.43)

57.23 (6.68)

57.11 (5.53)

0.87

Gender

Male

n(%)

12 (35.29)

7 (22.58)

19 (29.23)

0.26

Female

n(%)

22 (64.71)

24 (77.42)

46 (70.77)

/

Eye side

right n(%)

14 (41.18)

19 (61.29)

39 (60.00)

0.84

Left

n(%)

20 (58.82)

12 (38.71)

26 (40.00)

/

Vascular fractal dimension

Mean(SD)

1.44 (0.02)

1.43 (0.03)

1.44 (0.03)

0.16

Average vascular curvature

Mean(SD)

0.00058 (0.000066)

0.00057 (0.00007)

0.00057 (0.000067)

0.59

Mean vascular curvature within 0.5–1.0PD

Mean(SD)

0.00058 (0.00012)

0.00058 (0.00011)

0.00058 (0.00011)

0.89

CRAE within 0.5PD-1.0PD

Mean(SD)

110.74 (15.56)

107.76 (18.22)

109.32 (16.82)

0.48

PRAE within 1.5PD-2.0PD

Mean(SD)

116.31 (12.9)

116.98 (15.24)

116.63 (13.96)

0.85

CRVE within 0.5PD-1.0PD

Mean(SD)

212.13 (16.82)

206.58 (21.53)

209.48 (19.26)

0.25

PRVE within 1.5PD-2.0PD

Mean(SD)

211.29 (14.57)

214.28 (25.83)

212.71 (20.6)

0.57

CAVR within 0.5PD-1.0PD

Mean(SD)

0.52 (0.07)

0.52 (0.06)

0.52 (0.07)

0.86

PAVR within 1.5PD-2.0PD

Mean(SD)

0.55 (0.06)

0.55 (0.06)

0.55 (0.06)

0.85

Optic disc area (µm²)

Mean(SD)

2129939.76 (331332.54)

2226441.87 (437759.48)

2175963.85 (385,737.74)

0.32

Optic disc horizontal diameter (µm)

Mean(SD)

1574.78 (146.45)

1598.37 (155.15)

1586.03 (149.95)

0.53

Optic disc vertical diameter (µm)

Mean(SD)

1716.45 (161.79)

1763.85 (194.5)

1739.06 (178.32)

0.29

Optic cup area (µm²)

Mean(SD)

460450.04 (213,235.94)

485536.69 (197908.11)

472414.45 (204,852.43)

0.43^*

Optic cup horizontal diameter (µm)

Mean(SD)

741.67 (168)

752.51 (147.06)

746.84 (157.23)

0.78

Optic cup vertical diameter (µm)

Mean(SD)

745.95 (191.47)

781.69 (177.07)

763 (184.19)

0.44