This article describes a method for measuring retinal vasculature reactivity in vivo with human subjects using a gas breathing provocation technique to deliver vasoactive stimuli while acquiring retinal images.
Kushner-Lenhoff, S., Ashimatey, B. S., Kashani, A. H. Retinal Vascular Reactivity as Assessed by Optical Coherence Tomography Angiography. J. Vis. Exp. (157), e60948, doi:10.3791/60948 (2020).