Journal of Ophthalmology

Research Article

Comparison of Optical Coherence Tomography Angiography and Laser Speckle Flowgraphy for the Diagnosis of Normal-Tension Glaucoma

Table 2

Result of diagnostic testing.


	Normal ()	Normal-tension glaucoma ()	value

OCT-A whole image vessel density (%)	52.89 ± 2.25	44.73 ± 4.80	<0.001
OCT-A inside disc vessel density (%)	43.08 ± 7.16	28.43 ± 6.00	<0.001
OCT-A peripapillary vessel density (%)	60.02 ± 2.90	53.23 ± 6.26	<0.001^∗
LSFG MBR_A (AU)	21.01 ± 2.82	17.58 ± 3.99	<0.001
LSFG MBR_V (AU)	40.67 ± 5.44	38.29 ± 8.44	0.209
LSFG MBR_T (AU)	11.35 ± 1.62	10.42 ± 2.40	0.212
GCC thickness(μm)	96.26 ± 5.56	78.12 ± 8.29	<0.001
RNFL thickness (μm)	93.92 ± 7.75	77.64 ± 10.81	<0.001

Differences between groups were tested with the Mann–Whitney U test. The asterisk indicates statistically significance (). OCT-A: optical coherence tomography angiography; LSFG: laser speckle flowgraphy; MBR: mean blur rate; MBR_A: mean MBR in all areas; MBR_V: mean MBR in the vessel area; MBR_T: mean MBR in the tissue area; AU: arbitrary units; GCC: ganglion cell complex; RNFL: retinal nerve fiber layer.