Ocular motor apraxia, Cogan type

General Information (adopted from Orphanet):

Synonyms, Signs: SACCADE INITIATION FAILURE, CONGENITAL
COMA
oculomotor apraxia, cogan type
Number of Symptoms 6
OrphanetNr: 1125
OMIM Id: 257550
ICD-10: H51.8
UMLs:
MeSH:
MedDRA:
Snomed:

Prevalence, inheritance and age of onset:

Prevalence: 50 cases [Orphanet]
Inheritance: Autosomal recessive
[Orphanet]
Age of onset: Childhood
[Orphanet]

Disease classification (adopted from Orphanet):

Parent Diseases: Oculomotor apraxia or related oculomotor disease
 -Rare eye disease
 -Rare genetic disease

Symptom Information: Sort by abundance 

1
(HPO:0000657) Oculomotor apraxia 54 / 7739
2
(HPO:0008026) Horizontal opticokinetic nystagmus 1 / 7739
3
(HPO:0006961) Jerky head movements 3 / 7739
4
(OMIM) Defective or absent horizontal ocular attraction movements 1 / 7739
5
(OMIM) Head turning for side vision 1 / 7739
6
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739

Associated genes:

ClinVar (via SNiPA)

Gene symbol Variation Clinical significance Reference

Additional Information:

Description: (OMIM) Congenital oculomotor apraxia, first reported by Cogan (1952), is characterized by (1) defective or absent horizontal voluntary eye movements, and (2) defective or absent horizontal ocular attraction movements.

Oculomotor apraxia occurs in ataxia-telangiectasia (208900). Also see ...

Clinical Description OMIM Vassella et al. (1972) provided observations on 3 patients and summarized the findings on 33 previously reported cases in the literature. Random eye movements and voluntary vertical gaze are usually retained by the affected individuals. Compensation for the ...