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Table 2 SER, AL, ONH parameters (mean ± standard deviation) of the affected and unaffected fellow eyes in BRVO and control eyes

From: Optic disc morphology in unilateral branch retinal vein occlusion using spectral domain optical coherence tomography

  Control eyes (n=40) BRVO patients (n=40) p value
   Affected eyes Unaffected fellow eyes Affected vs control Unaffected fellow vs control Affected vs unaffected fellow ††
SER (D) 0.70±1.41 0.89±1.51 0.95±1.65 0.606 .520 0.757
AL (mm) 23.48±0.68 22.99±0.56 23.09±0.51 0.001* 0.005* 0.052
Disc area (mm2) 1.88 ± 0.22 1.84 ±0.30 1.87 ±0.34 0.491 0.873 0.482
Cup area (mm2) 0.54 ± 0.31 0.51±0.39 0.55±0.45 0.692 0.911 0.423
Rim area (mm2) 1.31 ± 0.30 1.33±0.38 1.34±0.47 0.727 0.697 0.901
Rim V (mm3) 0.16±0.07 0.20±0.18 0.18±0.12 0.166 0.338 0.421
Cup V (mm3) 0.07±0.08 0.07±0.09 0.09±0.12 0.880 0.511 0.509
CDaR 0.30±0.18 0.27±0.19 0.29±0.22 0.485 0.796 0.492
hCDR 0.55±0.22 0.51±0.24 0.52±0.27 0.402 0.602 0.582
vCDR 0.47±0.16 0.47±0.23 0.46±0.25 0.978 0.907 0.878
aveRNFL (μm) 100.64±7.38 100.86±11.09 101.13±9.26 0.918 0.796 0.879
  1. P-values of independent () and paired (††) t-test. Asterisk (*) indicates a difference that is considered statistically significant (p < 0.05). (Abbreviations: SER= spherical equivalent refraction, AL= axial length, V=volume, CDaR= cup-disc area ratio, hCDR=horizontal cup-disc ratio, vCDR= vertical cup-disc ratio, aveRNFL= average peripapillary retinal nerve fiber layer thickness)