Print friendly version
Other Names for this Disease
- Choroidal coloboma
- Coloboma of choroid and retina
- Retinal Coloboma
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.
Your QuestionHow rare is retinochoroidal coloboma? What percentage of people with ocular coloboma have retinochoroidal?
We have identified the following information that we hope you find helpful. If you still have questions, please contact us.
The actual incidence of retinochoroidal coloboma is not known. Incidence estimates for ocular coloboma range from 0.5 to 7.5 per 10,000 births depending on the population studied. In a United States population the incidence of ocular coloboma was estimated to be 2.6 per 10,000 births. In a single study, the incidence of retinochoroidal coloboma was found to be 0.2 per 10,000. However, because retinochoroidal coloboma often causes no symptoms, it is likely that many cases go undiagonsed.
Last updated: 1/14/2013
- Barnard S, Shneor E, Brauner J, Millodot M, Gordon-Shaag. Bilateral chorioretinal coloboma discovered with ultra-wide field retinal imaging. J Optom. 2012;05(3):150-154; http://www.journalofoptometry.org/en/bilateral-chorioretinal-coloboma-discovered-with/articulo/90149576/. Accessed 1/14/2012.
- Gupta A, Narang S, Gupta V, Sharma A, Pandav SS, Singh P. Successful closure of spontaneous scleral fistula in retinochoroidal coloboma. Arch Ophthalmol. 2001 Aug;119(8):1220-1; http://www.ncbi.nlm.nih.gov/pubmed/1483101. Accessed 1/11/2013.
- Dutton GN. Congenital disorders of the optic nerve: excavations and hypoplasia. Eye (Lond). 2004 Nov;18(11):1038-48; http://www.ncbi.nlm.nih.gov/pubmed/15534588. Accessed 1/11/2013.