A representative case of a right lower branch retinal vein occlusion showing the optical coherence tomography angiography, fundus photograph images, and the change in retinal sensitivity. (A) Classification of the four quadrants. In this study, the affected temporal area was used for analysis. (B) Overlay of baseline optical coherence tomography angiography, fundus photograph, and retinal sensitivities. The yellow frames are the range where the perfusion density was measured, corresponding to each MP3 measurement point. (C) 6 months, (D) 12 months.