raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:98943

Coloboma of eye lens

Type
Morphological anomaly
Group
Disorder
Age of onset
Infancy, Neonatal
Status
active

A rare, genetic, developmental defect of the eye characterized by a uni- or bilateral abnormal lens shape (contraction of the lens with a notch) due to segmentally defective, or absent, development of the zonule and flattening of the equator in the region of the zonular defect, typically manifesting with reduced visual acuity. Other ocular anomalies, such as iris, choroid or optic disc colobomas, as well as cataracts and retinal detachment, may be associated.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enColoboma of eye lens
frColobome du cristallin
deLinsenkolobom
esColoboma de cristalino
itColoboma del cristallino
nlColoboom van ooglens
ptColoboma do cristalino
plSzczelina soczewki oka
csKolobom čočky
ukКолобома кришталика ока
zh晶状体缺损
trGöz lensi kolobomu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM620731NTBTvalidated
ICD-10Q12.2Especificvalidated
ICD-11LA12.0Especificvalidated
MONDO0020355Evalidated
UMLSC0344516Evalidated
GARD1433Evalidated

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 (4):

No children.

4

Genes

4 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
FZD5Disease-causing germline mutation(s) (gain of function) inAssessedHGNC:4043ENSG000001632516017232q33.3frizzled class receptor 526908622[PMID]
SALL2Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:10526ENSG0000016582160221914q11.2spalt like transcription factor 224412933[PMID]
ABCB6Disease-causing germline mutation(s) inAssessedHGNC:47ENSG000001156576054522q35ATP binding cassette subfamily B member 6 (LAN blood group)22226084[PMID]
PAX6Disease-causing germline mutation(s) inAssessedHGNC:8620ENSG0000000737260710811p13paired box 612721955[PMID]_16604056[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 1 000 0000.1 / 100 000WorldwideValue and classValidatedORPHANET

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

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HPO phenotypes

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

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Sources for this card