![misshapen pupil misshapen pupil](http://bloodbankdragons.com/2011photos/5incheye2.jpg)
This condition is normally congenital, although it can in some cases be caused by injury– especially a penetrating eye injury.
![misshapen pupil misshapen pupil](http://1.bp.blogspot.com/-Rp4qBE9DfEs/T_-peObArQI/AAAAAAAAF7M/gjcpkUqnFsw/s1600/coloboma1.jpeg)
Impacted people might also develop a clouding of the cornea known as aniridic keratopathy. In general, nevertheless, visual acuity for people with this condition varies from 20/80 to 20/200. While the name aniridia implies the total absence of an iris, the truth is that there is constantly some basic iritic tissue present, even in cases of so-called “total aniridia.” The degree to which this condition impacts vision differs from one patient to another, but some children with aniridia have 20/30 vision or much better (significance that they can view as well at a distance of 20 feet as a normal person can see at 30). Lots of people who are born with this condition likewise experience uncontrolled eye shakiness, a condition known as nystagmus. Because we depend on the iris to manage the amount of light that enters the eye, the absence of the iris causes extreme sensitivity to light, a condition known as photophobia. The eyes will appear black, without any color separating the white from the pupil. Symptoms of AniridiaĪniridia presents a striking, unique look. With partial aniridia, part of the iris is missing out on, and the impacted individual will have big, misshapen pupils surrounded by a thin ring of color these partial irides will not contract and broaden in the way that a normal iris does. In cases of total aniridia, there is no visible iris. This uncommon condition, likewise referred to as iris hypoplasia, takes place in one out of every 50,000 to 100,000 infants born worldwide (although incidence varies from one area to another).Īniridia is almost always bilateral (impacting both eyes), and is classified as either partial or total. The term aniridia means, literally, “without iris.” Some regrettable people are born missing out on part or all of the iris, the colored part of the eye.