Rare diseases · Sign or symptom
Optic nerve misrouting
HP:0025551
What it means
Abnormal decussation of the visual pathways, typically identified using visual evoked potentials (VEP) (asymmetrical distribution of the VEP over the posterior scalp).
Rare diseases that can present with this4
The 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: Optic pathway misrouting · Visual pathway misrouting
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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.