Purpose of review Optical coherence tomography angiography
(OCTA) studies have demonstrated reduced microcirculation in the superficial optic nerve, peripapillary retina, and the macula of glaucoma
patients. The scope of this review is to outline recent studies using OCTA in glaucoma
and highlight how OCTA may help improve diagnosis and follow-up in glaucoma
OCTA studies have provided evidence of vascular changes in the optic nerve head, peripapillary, and macula region in glaucoma
in comparison to glaucoma
suspects and normal eyes. Additionally, OCTA can detect longitudinal reduction of peripapillary and macula vessel density in glaucoma
patients. It remains unclear whether the reduced microcirculation in glaucoma
patients induces the neuronal damage or arises through reduced circulation requirements in damaged tissue.
OCTA is a novel imaging modality that has great potential to enhance our understanding of glaucoma
and to improve our ability to detect and treat it.