Definition of coloboma in English:

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Pronunciation: /ˌkɒləˈbəʊmə/


[mass noun] Medicine
A congenital malformation of the eye causing defects in the lens, iris, or retina.
Example sentences
  • Newborns with aniridia or coloboma should have a formal eye examination.
  • Depending on the extent and location of the coloboma, there may be decreased visual acuity, nystagmus, strabismus, photophobia, and a loss of visual fields.
  • Complete coloboma is when all of the structures of the eye are involved; these are the choroid, the retina, the optic disk, the ciliary body, the macular and the iris.


Mid 19th century: modern Latin, from Greek kolobōma 'part removed in mutilation', from kolobos 'cut short'.

For editors and proofreaders

Line breaks: colo|boma

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