Rare diseases · Sign or symptom
Retinal venous occlusion
HP:0012636
What it means
Blockage of a retinal vein or venule, occurring typically at an arteriovenous crossing. Typically presenting with dilated veins, retinal hemorrhages and in some cases non-perfusion.
Retinal vein occlusion is generally associated with systemic cardiovascular diseases.
Rare diseases that can present with this4
Sometimes5–29%
2The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.
Part of the broader category
Also called: Retinal vein occlusion
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Start free with EleplanThis page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.