Comparison of Retinal Nerve Fiber Layer Thickness Measurements in Healthy Subjects Using Fourier and Time Domain Optical Coherence Tomography

Table 1

Mean retinal nerve fiber layer parameters and standard deviation measured by Cirrus high definition (HD) and Stratus optical coherence tomography (OCT) and their statistical comparisons.

	Stratus OCT parameters		Cirrus HD OCT parameters		Mean difference (Stratus-Cirrus)	𝑃
	Mean	SD	Mean	SD
Average thickness	97.85	11.47	95.50	9.45	2.37	0.003
Superior thickness	119.54	19.47	117.06	17.32	2.63	0.070
Nasal thickness	74.44	19.83	71.41	16.55	2.96	0.106
Inferior thickness	126.38	18.87	125.36	16.63	1.09	0.357
Temporal thickness	70.99	13.62	68.38	11.81	2.21	0.046
H1 hour sector	110.65	29.35	103.77	26.41	7.17	0.004
H2 hour sector	90.02	26.71	87.49	19.34	2.36	0.317
H3 hour sector	59.84	17.15	56.86	11.99	2.91	0.068
H4 hour sector	73.01	20.62	66.23	16.13	6.83	0.000
H5 hour sector	106.28	26.12	101.65	24.34	4.79	0.006
H6 hour sector	134.54	27.42	133.72	29.47	0.86	0.657
H7 hour sector	141.86	26.31	138.64	24.48	2.52	0.203
H8 hour sector	75.32	18.56	71.88	18.35	4.17	0.006
H9 hour sector	53.40	10.61	53.87	13.77	-0.05	0.968
H10 hour sector	82.24	19.83	82.92	20.52	-0.79	0.620
H11 hour sector	131.51	24.56	126.84	25.65	4.75	0.023
H12 hour sector	123.05	25.81	115.65	26.25	7.63	<0.001