Branch Retinal Vein Occlusion (BRVO) Diagnosis
Your ophthalmologist will widen (dilate) your pupils with eye drops and check your retina.
They will also do a scan of the retina called optical coherence tomography (OCT) to look for swelling, which affects vision.
They may do a test called fluorescein angiography. Yellow dye (called fluorescein) is injected into a vein, usually in your arm. The dye travels through your blood vessels. A special camera takes photos of your retina as the dye travels throughout the vessels. This test shows if any retinal blood vessels are blocked.
Also, your blood sugar and cholesterol levels may be tested.
People under the age of 40 with branch retinal vein occlusion (BRVO) may be tested to look for a problem with their blood clotting or thickening.