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what can cause a bump on the iris of the eye

* A white or clear "lump" on the iris or cornea could be a corneal ulcer. These are typically caused by infections (from bacterium or viruses) or eye trauma such as particulates like dirt, makeup, scratches, etc; also the prolong wearing of contact lens. These should be treated right away as some are disorders that may affect tear production which will lead to the eye not being able to protect itself from infection.

To treat corneal ulcers caused by infections an eye drop solution will be given that contains steroids. Be advised that the steroids might make the condition worst and one should immediately stop the use of the drops and consult your ophthalmologist.

Symptoms of an corneal ulcer are red eye, pain / itching, pus / discharge, blurry vision, irritation when looking at bright lights, and swollen eyelids. (And of course the physical "bump" on the cornea.)

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