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Table 2 SD-OCT parameters in PD patients versus controls

From: Optical coherence tomography in patients with Parkinson’s disease

  Patients Controls p value
Mean ± SD Mean ± SD
RNFL thickness (µm)  
 Superonasal 117.74 ± 22.35 123.50 ± 20.51 0.299
 Inferonasal 121.27 ± 23.29 130.60 ± 25.20 0.138
 Nasal 78.6 ± 9.2 85.57 ± 13.36 0.021*
 Superior temporal 127.79 ± 17.11 138.73 ± 16.34 0.013*
 Inferior temporal 128.95 ± 23.07 145.45 ± 22.14 0.006*
 Temporal 79.23 ± 12.97 87.02 ± 9.57 0.01*
Macular measurements  
 Foveal thickness (µm) 232.5 ± 20.83 248.4 ± 19.46 0.003*
 Superior parafoveal thickness (µm) 297.3 ± 31.46 317.62 ± 16.07 0.002*
 Inferior parafoveal thickness (µm) 299.55 ± 23.86 315.9 ± 18.38 0.004*
 Nasal parafoveal thickness (µm) 292.69 ± 36.95 317.43 ± 17.21 0.001*
 Temporal parafoveal thickness (µm) 288.92 ± 24.49 303.05 ± 15.27 0.008*
 Macular volume (mm3) 6.75 ± 0.54 7.16 ± 0.37 0.001*
GCC thickness (µm)  
 Average thickness 90.25 ± 9.58 98.85 ± 11.52 0.002*
 Superior thickness 90.73 ± 10.2 98.57 ± 10.8 0.005*
 Inferior thickness 89.79 ± 9.35 99.13 ± 12.44 0.001*
  1. RNFL retinal nerve fiber layer, GCC ganglion cell complex
  2. *Statistically significant