Branch retinal artery occlusion (BRAO) refers to a blockage in one of the smaller arteries that supply blood to the retina, resulting in impaired vision. There are several synonyms for the term, including retinal arterial branch occlusion, branch retinal ischemia, and occlusion of retinal arterioles. These terms describe the same condition but use different wording to convey the same meaning. A common symptom of BRAO is sudden loss of vision in one eye and may require urgent medical attention to restore proper blood flow to the retina. With prompt and appropriate treatment, visual symptoms associated with BRAO may improve, though complete recovery may not always be possible.