Clearview Eye and Laser Medical Center

Thursday, October 18, 2007

Toss Those Reading Glasses

Everyone aged about 45 or more knows the annoying necessity of wearing reading glasses or contacts. This “over 40 eyes” is called Presbyopia, and LASIK does not treat it. It’s like farsightedness, because that person can see down the road just fine, but can’t read the map without glasses. But it has a different cause. LASIK treats vision impairment which is caused by the shape of the cornea. Those conditions are nearsightedness, farsightedness, and astigmatism.

Presbyopia is caused by the eye’s lens getting stiffer as we age. So reshaping the cornea will not help. The Presbyopia problem is that the lens can no longer change its curvature so readily. It tends to stay flat. So when light bounces off the map you’re trying to read and enters the eye, the lens doesn’t bend it enough for you to see clearly. Instead of focusing on the retina at the back of the eye, and forming a clear image, the light from the map focuses behind the retina and so the map looks blurry.

There’s no way we can restore flexibility to the lens, but we can restore the effects of flexibility by using an implantable intraocular lens (IOL). It would replace your natural lens and give you clear vision at all distances.

posted by JennyK at 11:48 AM

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San Diego LASIK Center

Sandy T. Feldman, M.D., M.S. :: ClearView Eye and Laser Medical Center
6255 Lusk Blvd., Suite 100 :: San Diego, California 92121

“She’s the Surgeon to See”