Jee Taek Kim1, Yeon Sook Chun2, Jeong Kyu Lee2, Nam Ju Moon2, Dae Yong Yi3. 1. Department of Ophthalmology, College of Medicine, Chung-Ang University Hospital, Seoul, Republic of Korea, jeetaek-kim@hanmail.net. 2. Department of Ophthalmology, College of Medicine, Chung-Ang University Hospital, Seoul, Republic of Korea. 3. Department of Pediatrics, College of Medicine, Chung-Ang University Hospital, Seoul, Republic of Korea.
Abstract
PURPOSE: To quantify the susceptibility of the deep capillary plexus (DCP) in comparison with that of the superficial capillary plexus (SCP) in eyes with branch retinal vein occlusion (BRVO) using swept-source optical coherence tomography angiography (SS-OCTA). METHODS: SS-OCTA (TritonTM; Topcon, Tokyo, Japan) scans (3 × 3 mm) of 41 patients with BRVO were retrospectively analyzed. The mean vessel densities (VDs) of the SCP and the DCP were calculated in eyes with BRVO using the ImageJ program (National Institutes of Health, Bethesda, MD, USA) and compared with those in the normal fellow eye without any morbidity or unaffected sector in the BRVO eye. RESULTS: The reduction rate of mean VD in SCP and DCP between the affected and unaffected sector of eyes with BRVO was 13.88 and 24.60%, respectively. Additionally, the reduction rate of mean VD in the SCP and DCP in the affected sector of BRVO eyes versus the corresponding sector of fellow eyes was 13.31 and 24.49%, respectively. CONCLUSION: The DCP was 1.77-1.84 times more affected than the SCP by ischemic damage in eyes with BRVO.
PURPOSE: To quantify the susceptibility of the deep capillary plexus (DCP) in comparison with that of the superficial capillary plexus (SCP) in eyes with branch retinal vein occlusion (BRVO) using swept-source optical coherence tomography angiography (SS-OCTA). METHODS: SS-OCTA (TritonTM; Topcon, Tokyo, Japan) scans (3 × 3 mm) of 41 patients with BRVO were retrospectively analyzed. The mean vessel densities (VDs) of the SCP and the DCP were calculated in eyes with BRVO using the ImageJ program (National Institutes of Health, Bethesda, MD, USA) and compared with those in the normal fellow eye without any morbidity or unaffected sector in the BRVO eye. RESULTS: The reduction rate of mean VD in SCP and DCP between the affected and unaffected sector of eyes with BRVO was 13.88 and 24.60%, respectively. Additionally, the reduction rate of mean VD in the SCP and DCP in the affected sector of BRVO eyes versus the corresponding sector of fellow eyes was 13.31 and 24.49%, respectively. CONCLUSION: The DCP was 1.77-1.84 times more affected than the SCP by ischemic damage in eyes with BRVO.
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