Figure 3 | Scientific Reports

Figure 3

From: Simultaneous influence of sympathetic autonomic stress on Schlemm’s canal, intraocular pressure and ocular circulation

Figure 3

The HRV results obtained from a 3-leads ECG recording. The frequency domains are generated using Fourier transform from the recorded R–R intervals. Upper: The R–R interval curve from the 1-minute recording. Below: The frequency domain result during the CPT (T0 and T1). VLF: 0–0.04 Hz, LF: 0.04–0.15 Hz, HF:0.15–0.4 Hz. HRV: Heart rate variability; ECG: Electrocardiograph.

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