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Keratoconus causes

There is no single cause of keratoconus, but experts think it may be inherited from parents or linked to allergic and hormonal responses.

About the causes of keratoconus

Expert optometrists haven’t found any single cause for keratoconus, but they can pinpoint the most likely causes. The most common cause of keratoconus is genetic, however it is also related to allergic responses and even hormonal changes in the body.

The likely keratoconus causes

Prolonged eye rubbing can result in damage to the cornea, inducing keratoconus. Eye rubbing is often associated of allergies like hay fever, eczema and even asthma.

Most people with keratoconus are thought to have inherited it from family members. Indeed this usually happens without them realising. This is because mild keratoconus often goes undiagnosed in families.

Indeed, only 8% of patients with keratoconus are aware of another family member with the disease. However, studies have shown that up to 50% of sufferer’s family members have mild, undiagnosed keratoconus.

Hormonal changes are also thought to have a link to keratoconus, especially in young people.

During puberty (or at certain other times of hormonal change) the cornea can accumulate enzymes which make it thinner, resulting in keratoconus.

Collagen disorders can induce keratoconus. This happens when the collagen fibres of the cornea become weak, causing it to be misshapen.

Contact lenses that don’t fit properly can make keratoconus worse, in particular flat-fitting contact lens designs.

Quick guide

Your keratoconus consultation

A keratoconus diagnosis can feel overwhelming. This guide explains your consultation process and how we’ll help you achieve clearer vision.

The cause of my keratoconus

An optometrist who specialises in keratoconus is the only one who can identify the most likely cause of the disease.

Dr. Jim Kokkinakis is one of Australia’s foremost keratoconus optometrists. He can help pinpoint the most likely keratoconus cause by examining your eyes and gauging how other factors might impact on any diagnosis.

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