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Medically reviewed by Last updated on May 6, 2024.

What is keratoconus?

Keratoconus is an eye condition that causes your cornea to become thinned and raised. The cornea is the clear surface of your eye. You may have vision loss in one or both eyes. Keratoconus occurs most often in adolescents and adults 20 or older. The cause of your keratoconus may not be known.

What increases my risk for keratoconus?

What are the signs and symptoms of keratoconus?

Your healthcare provider will examine your cornea for curves, lines, or areas that are not even. Your provider may also see swelling on your lower eyelid when you look down, or a ring of iron deposits in your eye. You may have the following symptoms:

How is keratoconus diagnosed?

Your healthcare provider will ask about your symptoms. Your provider will also ask about your health history and if anyone in your family has keratoconus. You may need any of the following tests:

How is keratoconus treated?

What can I do to manage my symptoms?

When should I seek immediate care?

When should I contact my healthcare provider?

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.