raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:53691

Congenital cornea plana

Type
Morphological anomaly
Group
Disorder
Inheritance
Autosomal dominant, Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

A rare developmental defect of the eye characterized by usually bilateral absence of the normal protrusion of the cornea from the sclera, the corneal curvature being the same as that of the adjacent sclera. Most patients develop hyperopia, hazy corneal limbus, and arcus lipoides at an early age. The condition may present as an autosomal dominant or an autosomal recessive form, with the latter showing more severe signs and symptoms (such as a round and opaque thickening located centrally in the cornea) and more frequent association with other ocular anomalies.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCongenital cornea plana
frCornea plana congénitale
deCornea plana, kongenitale
esCórnea plana congénita
itCornea piana congenita
nlCongenitale cornea plana
ptCórnea plana congénita
plWrodzona rogówka płaska
csCornea plana congenita
ukВроджена вада розвитку рогівки
zh先天性扁平角膜
trDoğumsal kornea plana

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM121400BTNTvalidated
OMIM217300BTNTvalidated
ICD-10Q13.4NTBTattributedvalidated
ICD-11LA11.1NTBTindexvalidated
MONDO0018888Evalidated
UMLSC0344529Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (5):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
KERADisease-causing germline mutation(s) (loss of function) inAssessedHGNC:6309ENSG0000013933060328812q21.33keratocan10802664[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families55 casesWorldwideCase(s)Validated24303778[PMID]_17558846[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidated24303778[PMID]_17558846[PMID]_ORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

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Sources for this card