Coloboma

What is Coloboma?

Coloboma is the absence or defect of ocular (eye) tissue, usually a gap or cleft in one of the structures of the eye. Different parts of the eye can be affected, but the iris (colored part of eye) is the most commonly involved and is visible as a hole, split, or cleft in the iris. This usually occurs at the bottom of the eye. Coloboma can occur in various degrees of severity ranging from a small pit in the optic disk to extensive defects in various parts of the eye. Complete coloboma occurs when all structures of the eye are involved. Depending on the severity and part of the eye involved, vision may or may not be affected. Blurred vision or decreased visual acuity is common.


Please fill in your information to download the full fact sheet. Fact Sheets are free, and your information helps us receive more funding for our research.

All fields are required to download the full fact sheet.

Your Name

Your Email

Your Street Address

Your City/Town and State

Your Zip

Click submit for the download link.

Comments are closed