Astigmatism

Astigmatism is a common eye disorder that causes blurred vision at all distances. In most cases astigmatism can be treated with an eye laser treatment, and in cases of higher visual disorders we can offer lens surgery. This makes it possible for us to offer you a life without glasses and contact lenses.

Astigmatism can significantly interfere with your daily life. Your eyes may have so much trouble focusing on objects that they become fatigued, leading to other painful symptoms. Many people with astigmatism have never experienced clear vision. Astigmatism often occurs in combination with nearsightedness or farsightedness, requiring a three-part prescription for glasses and/or contact lenses.

Astigmatism - The Problem in Detail

Normal Vision

Good vision requires a sharp image being produced on the retina at the back of the eye. The optical system (cornea, crystalline lens and vitreous body) of a normaleye diverts light rays (what we see) in a way so they land exactly in the focal point, the point of best vision, on the retina – the so-called macula. This diversion of light rays is called refraction. The total power of refraction is expressed in diopters (D). The total refractive power is determined on the basis of the different parts of the optical system. When the total refraction is zero diopters, objects will be depicted sharply on the retina.

Astigmatism

Ideally the curvature of the cornea is shaped regularly like the surface of a ball. Astigmatism occurs when the corneal surface is more irregularly shaped, more like that of an egg. Instead of coming to a single point, light focuses at several different points both in front of and behind your retina, causing blurred vision. The light is refracted differently through the different curvatures of the cornea, e.g. vertical light rays are refracted differently than horizontal. This results in a distorted image: A dot may appear as a line. The optical correction of astigmatism changes the refractive power of the optical system, allowing light to focus properly for the first time.

Which Method is Right for Me?

Prior to a treatment, a thorough examination and consultation will always take place, in order to determine whether or not the patient is suitable for laser eye treatment. Safety and diagnostics are our absolute priority. If the examination reveals that a patient is not suitable for LASIK treatment, these patients will be offered another solution to correct their refractive error. 

 

Eye Laser Procedure for Correcting Astigmatism

Also in combination with near- or farsightedness  

 

Procedure Astigmatism
ee-LASIK/Femto-LASIK1 up to 4 D
PRK/LASEK
up to 3 D

1 depending on corneal thickness

 

Lens Procedure for a More Severe Astigmatism

Also in combination with near- or farsightedness  

 

Procedure Astigmatism             
Implantable, Toric Contact Lens (ICL)1 up to 6 D

1 Patient younger than 40-45 years

 

Lens Procedure treating Astigmatism in Combination with Presbyopia

Also in combination with near- or farsightedness  

 

Procedure                      Astigmatism
Toric Multifocal Lens1 up to 12 D

1 Patient older than 40-45 years

 

Also within the cataract operation astigmatism, Myopia, hypermetropia or presbyopia can be corrected as well.

 
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