What is coloboma? When a person is suffering from coloboma then what types of problems face?
Answers
A coloboma is a hole in one of the structures of the eye, such as the iris, retina, choroid, or optic disc. The hole is present from birth (except for one case, where it developed within the first few months of the child's life) and can be caused when a gap called the choroid fissure, which is present during early stages of prenatal development, fails to close up completely before a child is born.
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A coloboma is a gap in part of the structures of the eye. This gap can be large or small and is normally in the bottom part of the eye.
Coloboma can affect one eye (unilateral) or both eyes (bilateral). Coloboma can affect a number of different parts of the eye. A coloboma does not mean that there is a hole in the eye, but that certain structures or parts within the eye did not fully form.
The affect coloboma has on vision depends a lot on which part of the eye is affected and how big the gap is. Normally the gap is at the bottom of the eye (where a 6 is on the face of a clock) and runs from the front to the back of the eye. Coloboma may affect only the front of the eye if most of the cleft has sealed up. It may affect the eye from the front to the centre and back if more of the cleft has failed to close.
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