Who Is at Risk for a Coloboma?
A coloboma is believed to be genetic and can be passed along in families.
Sometimes a coloboma is part of a genetic syndrome. For instance, cat eye syndrome, a rare disorder named after the distinctive shape of an iris coloboma, is caused by a specific genetic mutation and occurs along with other physical abnormalities.
However, not all babies born with a coloboma have a family history of this condition or a particular syndrome, suggesting that the disorder can appear by chance.