Ultra-widefield (Optomap) image of central retinal vein occlusion with retinal hemorrhages throughout the retina and a cotton-wool spot (arrow). (Used, with permission, from S Kiss and Optos plc.) Source: Disorders of the Eyes & Lids, Current Medical Diagnosis & Treatment 2018 Citation: Papadakis MA, McPhee SJ, Rabow MW. Current Medical Diagnosis & Treatment 2018; 2017 Available at: http://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/2192/cmdt18_ch7_ef040-1.png&sec=167996299&BookID=2192&ChapterSecID=167995926&imagename= Accessed: January 01, 2018 Copyright © 2018 McGraw-Hill Education. All rights reserved