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Fig. 4 | BMC Ophthalmology

Fig. 4

From: Changes in pulse waveforms in response to intraocular pressure elevation determined by laser speckle flowgraphy in healthy subjects

Fig. 4

Changes in the eight waveform parameters of the blood flow on the ONH are shown (a-h). Of the eight pulse waveform parameters, the BOS (b) was significantly decreased during IOP elevation, and the FAI (f) and the resistivity index (h) were significantly increased after the elevation of the IOP by 20 and 30 mmHg, respectively. The values of three parameters returned to the baseline after IOP release. No significant changes were observed in the Skew (a), BOT (c), rising rate (d), falling rate (e) and ATI (g) after the IOP elevation. *** P < 0.001, ** P < 0.01, * P < 0.05

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BMC Ophthalmology

ISSN: 1471-2415

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