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Astigmatism
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Astigmatism

Astigmatism is not a disease but a vision disorder or, more scientifically, a refraction disorder. As such, astigmatism has three “cousins”: short-sightedness, far-sightedness and presbyopia.

Astigmatism is characterised by a deformation of the cornea. In the case of a normal eye, the cornea has the same curvature in all directions. It is this regularity that enables you to perceive an image clearly. However, when you suffer from astigmatism, the curvature of the cornea is more pronounced in one direction than another. So the cornea becomes the shape of a rugby ball rather than a lovely round football.

Astigmatism is often accompanied by short-sightedness and far-sightedness.

What are the symptoms?

A person with astigmatism has blurred and indistinct vision both long distance and close up. He has difficulty in perceiving shapes, images are unclear or deformed. He easily confuses letters or round numbers like 3, 6, 8 and 9.

A person with astigmatism may also suffer from headaches, eye tiredness, redness in the eyes and a burning feeling.

Who is affected?

What are the causes?

Pronounced astigmatism is generally hereditary.

What is the evolution?

Astigmatism does not worsen with age, as it is linked to the cornea curvatures which – excepting in the case of certain diseases like keratoconus – remain stable.

How is it diagnosed?

Astigmatism is diagnosed by a clinical examination by an ophthalmologist.

How can it be prevented?

Unfortunately there is no way of preventing astigmatism.

how to treat it?

    Introduction

    Deep treatment with LASIK

    In depth treatment with FemtoLASIK

    Surface treatment by photorefractive keratectomy (PRK) with the Excimer Laser

    Surface treatment with LASEK (Laser-assisted sub epithelial keratomileusis)

    EPI-LASIK surface treatment

    Treatment with “artisan” phakic implants

    Treatment by refractive exchange of the crystalline lens

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