Keratoconus

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Keratoconus Keratoconus

What is Keratoconus ?

Keratoconus is a vision disorder that occurs when the normally round cornea (the front part of the eye) becomes thin and irregular (cone) shaped.
This abnormal shape prevents the light entering the eye from being focused correctly on the retina and causes distortion of vision.
This makes daily tasks like reading or driving difficult.

Causes of keratoconus

Largely unknown. Family history of keratoconus. Excessive eye rubbing. Eye allergies. Connective tissue disorders, e.g. Marfan syndrome.

Family members who have the condition
Underlying allergies
Conditions that cause excessive eye rubbing – which could weaken the cornea

What are the symptoms of keratoconus?

Often starts in teenage
Blurred, distorted vision.
Increased sensitivity to light and glare
Red Eyes.

Frequent changes in the spectacles prescription.
Sudden appearance of a whitish spot in the centre of the eye.
Symptoms usually affect both eyes at varying degrees.
Not being able to wear contact lenses, as they no longer fit properly

How is keratoconus Diagnosed?

Keratoconus can be diagonsed through a routine exam.
Your optometrist will examine your cornea and may measure its curvature

How is keratoconus treated?

It depends on your symptoms.
Spectacles in mild cases.
Special hard contact lenses in moderate to severe cases.
Intacs
Collagen cross linking
Corneal transplant

Watch Out

With keratoconus, try to avoid rubbing your eyes. This can damage thin corneal tissue and make your symptoms worse.

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