What is aniridia?

Aniridia is a rare condition which means the iris, the coloured part of your eye, is missing or incomplete. Aniridia normally affects both eyes and it is a condition you are born with.

If your iris is incomplete or missing then your pupil will be very large. This means that your eye isn’t able to adjust to differing levels of light. Aniridia can cause poor vision and sensitivity to light.

More information can be found our aniridia web page.

We also have an aniridia factsheet:

For more information and advice about aniridia and other eye conditions please contact our Helpline:

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