This document presents a case study of a patient with branch retinal vein occlusion (BRVO) who was treated with multiple injections of Avastin and Ozurdex over 27 months. The study compares measurements from the patient's optical coherence tomography (OCT) scans, including central subfield thickness (CST), cube volume (CV), cube average thickness (CAT), and thickness in the superior 3mm and 6mm quadrants. It finds that changes in the superior 6mm quadrant measurement provided the greatest sensitivity in detecting progression or regression of intraretinal fluid, ranging 325 microns over the course of treatment, compared to smaller ranges of change for the other measurements. The study concludes that physicians should consider using OCT quadrant measurements in addition to C