What is the name of the medical condition in humans in which the pupil of the eye is shaped like that of a cat or reptile, and how prevalent is it?
#113573. Asked by BaronBatty. (Mar 22 10 1:54 AM)
The condition is called 'Coloboma' and "the incidence of coloboma is estimated at around 0.5 to 0.7 per 10,000 births, making it a relatively rare condition".|
Some more facts about Coloboma:|
Coloboma of the iris may look like a black, round hole located in or next to the colored part of the eye (iris). It can look like a black notch of different depths at the edge of the pupil. This gives the pupil an irregular shape. It can also appear as a split in the iris from the pupil to the edge of the iris.
A small coloboma (specially if it is not attached to the pupil), may allow a second image to focus on the back of the eye, causing:
* Blurred vision
* Decreased visual acuity
* Ghost image
The defect may include the retina, choroid, or optic nerve.
Colobomas are generally diagnosed at, or shortly after birth.
Coloboma can occur due to:
* Eye surgery
* Inherited conditions
* Trauma to the eye
Most cases of coloboma have no known cause and are not related to other abnormalities. A small percentage of people with coloboma have other inherited developmental problems.
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