الفهرس 
Table of ContentsOnly 14 pages are availabe for public view
 |  | from | 110 |  |  |
| | | from | 110 | | |
Abstract
Introduction: Retinal vein occlusion (RVO) is the second most common retinal vascular disease after diabetic retinopathy with vision loss due to retinal ischemia, macular edema, and retinal hemorrhage. Fundus fluorescein angiography, optical coherence tomography and optical coherence tomography angiography is useful to confirm diagnosis and assessment of complications. The Aim of this study: To evaluate the role of the optical coherence tomography angiography (OCTA) in diagnosis of retinal vein occlusion and compare it with fundus fluorescein angiography (FFA). Materials and methods: This is a cross-sectional, observational study conducted on 30 eyes in 30 patients with retinal vein occlusion attended at Mansoura University Ophthalmic Center in the period between June 2016 to January 2018. For all patients; full history taking, anterior segment examination, fundus examination, fundus fluorescein angiography and optical coherence tomography angiography were done. Results: OCTA was superior to FFA in delineating central non-perfused area, microaneurysms, of PFCA disruption and collateral vessels and also revealed it in both superficial capillary plexus and deep capillary of all eyes while FFA can only images superficial plexus. The peripheral non-perfused area could only be detected by FFA due to limited field of OCTA . Conclusion: In spite of the superiority of OCTA in evaluating RVO but still can’t eliminate the role of FFA in the diagnosis and follow up of retinal vein occlusion in certain cases.