1. Retinal Changes in Different Grades of Retinal Artery Occlusion: An Optical Coherence Tomography Study

    Retinal Changes in Different Grades of Retinal Artery Occlusion: An Optical Coherence Tomography Study

    Purpose : To investigate layer-by-layer changes in retinal thickness and reflectivity regarding the severity grade of acute retinal artery occlusion (RAO) using spectral-domain optical coherence tomography (SD-OCT). Methods : This study is a retrospective, observational case-control series that took place in an institutional setting and included 148 eyes from 74 patients diagnosed with acute RAO (central or branch). SD-OCT examinations were taken at baseline. Based on OCT findings, RAO was categorized into three grades (incomplete, subtotal, total). The thickness and reflectivity of selected retinal layers were measured from SD-OCT images. The data were compared across the three grades and against the contralateral ...

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