Optical coherence tomography in patients with Parkinson’s disease

Table 2 SD-OCT parameters in PD patients versus controls

	Patients	Controls	p value
	Mean ± SD	Mean ± SD	p value
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*