Astigmatism is a condition of the eye which can result in blurred vision. The outer clear surface of the eye (the cornea) of a person who has astigmatism is not curved spherically – but instead the curve is more oval shaped. With this condition when light enters the eye it does not focus correctly on the retina, resulting in blurred vision. Astigmatism can also be caused by an irregular shape of the lens, which is located inside the eye behind the cornea.
Astigmatism may occur in both children and adults; it is a fairly common condition. and frequently present at birth – it can also develop after an injury or operation to the eye.
It is part of a group of eye conditions known as refractive errors..
Astigmatism is easily diagnosed at an eye exam. Opticians use a refraction test and may use a keratometer to measure the curvature of your cornea. Should it be necessary a corneal topography test (computerised corneal mapping) may be used if more detailing is required.
The procedure to diagnose astigmatism of your eyes is quick and painless.
Treatment of Astigmatism
Treatment correction for your astigmatism will depend on its severity. In the vast majority of cases patients will have correction of their astigmatism with glasses or contact lenses. Surgery is also an option.
• Spectacles: This is the most common form of astigmatism treatment. They can correct all types of astigmatism and do not carry the risks of infection that contact lenses do.
• Contact lenses: Contact lenses can be adapted to correct astigmatisms. Soft toric lenses are used to correct mild astigmatisms while more rigid lenses can be used to correct astigmatism which is more severe. Toric contact lenses tend to be more expensive as than standard contact lenses as they are harder to manufacturer. Unlike glasses they will not fall off your head or be left somewhere.
• LASIK Eye Surgery Should you undergo LASIK eye surgery, the surgeon will use a laser to reshape your cornea.
• Orthokeratology, uses special contact lenses to change the shape of your cornea.
Contact us for an Eye Examination
If you are concerned about your eyes and if you think you may have astigmatism or perhaps you have not had an eye test for some time, give us a call and make an appointment.
The sooner you visit the sooner you will see better.
If you have noticed deterioration in your vision you should contact us and book an eye examination.