Friday, March 9, 2012

LASIK and Your Retina

There is a misconception when it comes to LASIK and your retina. Some patients think that because they are having LASIK, the issues with their retina will also be corrected.

This is not true.

Your retina is found at the back of your eye. It is responsible for sending messages to your brain. These messages tell your brain what you are looking at.

You have LASIK to correct a refractive error. Refractive errors occur when the cornea in your eye is misshapen. The cornea, which is found in the front of your eye, should be round and bowl-shaped. If the cornea is not perfectly shaped, then you will experience a refractive error: nearsightedness, farsightedness, or astigmatism.

Light is reflected off of objects and is filtered by the cornea of your eye. When the cornea is perfectly shaped, this light will refract directly onto your retina. If the cornea is misshaped, then the light will not shine directly onto your retina, and this causes double vision, blurry vision, or fuzzy objects.

LASIK works to reshape the cornea into a bowl-shape so that the light will reflect directly onto your retina. It does this through the use of a laser, guided by a surgeon. The laser only affects the cornea and not the retina, therefore it does not correct any issues you may be experiencing with your retina.

A board-certified surgeon should carefully analyze your eyes prior to approving you for LASIK surgery. Most of the risks associated with LASIK occur because the person may not be an excellent candidate for LASIK. Some of these risks include double vision, a fixed or rotating glare, rings of light (“halos”) or starbursts of light. There is also a risk of dry eye, however most patients will experience dry eye for a short time after surgery.

To learn more about LASIK and how to find out if you’re a good candidate for laser vision correction, please visit our website.

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