Research Article

Relationship between Metabolic Syndrome and Ocular Microcirculation Shown by Laser Speckle Flowgraphy in a Hospital Setting Devoted to Sleep Apnea Syndrome Diagnostics

Figure 1

The method for analyzing the mean blur rate (MBR) and pulse waveform in the optic nerve head (ONH) and choroid circulation using LSFG. (a) The gray-scale map of the total measurement area. The circle and rectangle designates the area of the ONH and center placed at the foveal area avoiding the retinal vessel measured. (b) The pulse waves show changes in the MBR, which is tuned to the cardiac cycle for 4 seconds. The total number of frames is 118. (c) Normalization of one pulse. MBRs are made on this screen.
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