In this presentation from Glaucoma Subspecialty Day 2022, Dr. Robert Weinreb considers whether optical coherence tomography angiography (OCTA) is useful for detecting early glaucoma and for monitoring advanced glaucoma. He reviews data for these potential uses, as well as patient cases. Dr. Weinreb also discusses current limitations to OCTA, such as artifacts, test-retest variability, and a lack of clinician-friendly results, and provides tips on scan size and frequency.