Corneas - our windows on the world – are delicate, transparent tissues which are constantly exposed to potentially damaging environmental factors such as daylight, ultraviolet light and high levels of oxygen.Normal corneas contain proteins that protect against the day to day stress of coping with these environmental stresses.
But around one in 40,000 people have Pax6 mutations which lead to them developing a condition called Aniridia, where the iris of the eye is missing.
As well as having no iris, most sufferers will develop some degree of corneal cloudyness which is called Aniridia-Related Keratopathy or ARK.
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