title: Sickling hemoglobinopathies; macular and perimacular vascular abnormalities.
mesh_terms: D000293:Adolescent; D000328:Adult; D000755:Anemia, Sickle Cell / Q000150:complications*; D000783:Aneurysm / Q000209:etiology; D002196:Capillaries; D005260:Female; D005451:Fluorescein Angiography; D006445:Hemoglobin C Disease / Q000150:complications*; D006801:Humans; D008266:Macula Lutea; D008297:Male; D012161:Retinal Artery; D012164:Retinal Diseases / Q000209:etiology*; D012169:Retinal Vein; D012171:Retinal Vessels; D013789:Thalassemia / Q000150:complications*; D014786:Vision Disorders / Q000209:etiology