Haute Ecole d'Ingénierie

Schlieren laser Doppler flowmeter for the human optical nerve head with the flicker stimuli

Geiser, Martial ; Truffer, Frederic ; Evequoz, Hugo ; Khayi, Hafid ; Mottet, Benjamin ; Chiquet, Christophe

In: Journal of Biomedical Optics, 2013/18/12/127001/1-127001/5

We describe a device to measure blood perfusion for the human optic nerve head (ONH) based on laser Doppler flowmetry (LDF) with a flicker stimuli of the fovea region. This device is self-aligned for LDF measurements and includes near-infrared pupil observation, green illumination, and observation of the ONH. The optical system of the flowmeter is based on a Schlieren arrangement which collects...