Downbeat nystagmus

Symptom Information:

Symptom ID: HPO:0010545
Synonyms:
Nystagmus, downbeat [OMIM:Nystagmus, downbeat]
Quality:
Cross references:
OMIM: "Nystagmus, downbeat" [OMIM:Nystagmus, downbeat]
Is a (Direct Parents):
HPO         Vertical nystagmus
Is a (Whole tree): HPO:
All(HPO:0000001)
    Phenotypic abnormality(HPO:0000118)
       Abnormality of the eye(HPO:0000478)
          Abnormal eye physiology(HPO:0012373)
             Abnormality of eye movement(HPO:0000496)
                Abnormal involuntary eye movements(HPO:0012547)
                   Nystagmus(HPO:0000639)
                      Vertical nystagmus(HPO:0010544)
                         Downbeat nystagmus(HPO:0010545)
MedDRA:
Database Frequency: 2 / 7739
Resource:

All diseases associated with this symptom:

Familial paroxysmal ataxia (Orphanet:97)
Spinocerebellar ataxia type 5 (Orphanet:98766)