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Table 3 Comparisons of RNFL thickness and peak locations in different astigmatism groups ( x ¯ ± s )

From: The influence of corneal astigmatism on retinal nerve fiber layer thickness and optic nerve head parameter measurements by spectral-domain optical coherence tomography

  Normal astigmatism group High corneal astigmatism group P *
RNFL thickness (μm)    
Average 94.15 (8.59) 91.67 (7.25) 0.195
Superior 106.74 (12.50) 110.86 (13.72) 0.194
Nasal 61.79 (11.13) 57.50 (7.74) 0.067
Inferior 111.18 (16.34) 111.61 (13.95) 0.905
Temporal 97.06 (17.69) 86.75 (13.41) 0.007
RNFL peak location (degree)    
α angle 55.59 (8.86) 60.82 (8.34) 0.013
β angle 61.66 (7.20) 66.80 (10.74) 0.043
superotemporal peak 156.12 (19.37) 158.53 (22.51) 0.633
inferotemporal peak 167.32 (28.10) 167.11 (17.48) 0.970
  1. * Independent t-test, RNFL indicates retinal nerve fiber layer.