congenital nystagmus nystagmus, myoclonic https://rarediseases.info.nih.gov/diseases/9605/nystagmus-myoclonic https://www.malacards.org/card/nystagmus_myoclonic MONDO:0010694 MESH:C564088 UMLS:C1839579 OMIM:310800 nystagmus, myoclonic MEDGEN:326918 myoclonic nystagmus