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GTR Home > Conditions/Phenotypes > Coloboma, ocular, autosomal dominant

Coloboma, ocular, autosomal dominant

Synonyms
Microphthalmia/coloboma 12

Summary

Coloboma is an ocular birth defect resulting from abnormal development of the eye during embryogenesis. It is defined as a congenital defect in any ocular tissue, typically presenting as absent tissue or a gap, at a site consistent with aberrant closure of the optic fissure. Failure of fusion can lead to coloboma of one or multiple regions of the inferior portion of the eye affecting any part of the globe traversed by the fissure, from the iris to the optic nerve, including the ciliary body, retina, and choroid. Coloboma is also frequently associated with small (microphthalmic) or absent (anophthalmic) eyes as part of an interrelated spectrum of developmental eye anomalies, and can affect either one or both eyes (summary by Kelberman et al., 2014). Microphthalmia/coloboma-12 (MCOPCB12) is characterized by inter- and intrafamilial variability. In addition to microphthalmia and coloboma, other ocular anomalies include iris hypoplasia, aphakia or small lens, lens subluxation, congenital cataract, microcornea, and sclerocornea. Some patients also exhibit neurodevelopmental anomalies (Deml et al., 2016; Williamson et al., 2020). For a discussion of genetic heterogeneity of colobomatous microphthalmia, see MCOPCB1 (300345). [from OMIM]

Available tests

16 tests are in the database for this condition.

Clinical tests (16 available)

Molecular Genetics Tests

Genes See tests for all associated and related genes

  • Also known as: AN, AN1, AN2, ASGD5, D11S812E, FVH1, MGDA, WAGR, PAX6
    Summary: paired box 6

Clinical features

Help
Imported from Human Phenotype Ontology (HPO)

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