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Vision Disorders

Vision disorders are often caused by the shape of the eyeball. The lens of the eye bends light to focus an image on the retina. This bending of light is called refracting. A misshapen eye will not refract the light properly. This can result in an image that is focused in front of the retina, behind the retina, or even multiple focal points. The natural shape of the eye, and the ability of the eye muscles to subtly alter this shape, both play a part in the eye’s ability to focus clearly on an object.

LASIK surgery corrects vision disorders by correcting the shape of the eye and allowing the eye to properly refract light, focusing the image on the retina. Before treating a vision disorder it is necessary to understand the problem.

Difficulty Seeing Far Away
About a quarter of the population is nearsighted. They can see things up close, but not in the distance. This is called myopia and is caused by an eyeball that is too long or a cornea that is too steep.

Read more about myopia and myopia solutions.

Difficulty Seeing Up Close
Many people have difficulty seeing things that are close up. For some this is a life-long problem that is cause by an eyeball that is too short or a cornea that is too flat. The condition is called hyperopia, often referred to as “farsightedness.”

Read more about hyperopia and hyperopia solutions.

Most people will develop problems seeing up close as they age. This is called presbyopia. It is the inability to adjust focus to things close up due to weakening of the eye muscles and loss of flexibility in the eye. Unlike hyperopia, presbyopia does not enhance distance vision. People who are nearsighted remain nearsighted as they lose their close vision with age.

Read more about presbyopia and presbyopia solutions.

Astigmatism
People with astigmatism have a football shaped cornea which creates multiple focal points, causing blurred vision. It can be present in combination with myopia, hyperopia, and presbyopia adding to vision problems. In cases where astigmatism only affects near or far vision it is often mistaken for near or far sightedness.

Read more about astigmatism and astigmatism solutions.

All of these vision disorders are refractive errors. LASIK offers solutions to refractive errors without the inconvenience and discomfort of wearing glasses or contacts.  However, if LASIK is not right for you, there are a range of other refractive eye surgery procedures that might work.

Other Vision Disorders:

Click to View the Interactive Glaucoma Vision Test

If you have a vision disorder, contact an experienced LASIK surgeon today.

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