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Table 3 Comparisons of Fusion Reflex Characteristics in Study Groups (M ± SD)

From: Fundamentals of Presbyopia: visual processing and binocularity in its transformation

Characteristics

Control

Presbyopia

P-value

Proximal fusion border, cm

5.23 ± 1.58

18.90 ± 6.85

0.0001

Distal fusion border, cm

90.05 ± 7.35

69.20 ± 12.21

0.0001

Convergence fusion border, 10−1 cm

24.83 ± 6.14

30.31 ± 6.91

0.0001

Divergence fusion border, 10−1 cm

63.38 ± 3.55

58.21 ± 5.61

0.056

Length of binocularity field, cm

84.78 ± 7.75

50.82 ± 16.05

0.0001

Width of binocularity field, 10−1 cm

41.88 ± 3.35

30.39 ± 6.34

0.0001

Area of binocularity field, cm2

365.60 ± 45.10

174.40 ± 87.70

0.0001