congenital achiasma
MONDO:0017929Mondo
Findings
No curated finding names congenital achiasma yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Congenital achiasma is a rare, genetic, non-syndromic cranial nerve and nuclear aplasia malformation characterized by the congenital absence of the optic chiasm, resulting from the failure of the optic nerve fibers to cross over and decussate to the contralateral hemisphere, leading to decreased vision, strabismus and congenital nystagmus in infancy.
Definition from the Mondo Disease Ontology (MONDO:0017929), read 2026-09-29. CC BY 4.0.