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Lasik for Astigmatism?
6 Doctor Answers | Asked by anon
The dreaded "Astigmatism"
Years ago, the correction of astigmatism was one of the greatest hurdles to a terrific LASIK result. Now, with amazing advances in laser mapping and technology, astigmatism has become a routine treatment. Patients, however, love to talk about their astigmatism as if it were some dreaded disease(like "Rheumatism")! Nothing could be further from the truth. Astigmatism can make wearing contact lenses very difficult, but that does not mean LASIK will be so. Once all of the...
Astigmatism can be fixed by LASIK
In a perfect world, all eyes would have a nice spherical shape and be perfect optical lenses. In the real world, it is amazing that as many eyes are as good as they are. And the eye is formed during development there is a seam and to make a perfect eye is very difficult and not always accomplished. The eye has a shape like a football on end when astigmatism is present, and this scatters light rays traveling through it so that simple optics cannot correct it. This is why soft contact...
Astigmatism is not a Disease
Astigmatism is not a disease, but more nearsightedness or farsightedness in one meridian or "axis" than the opposite 90 degrees. A good example given is the cornea is shaped like a "football" and the laser reshapes the cornea to round. As long as the cornea is normal by topographic mapping, up to 6 D or units of astigmatism can be corrected. A CustomWavefront LASIK can be performed as well for astigmatism. It is important that IR, or Iris Registration is used to properly align the treatment....
LASIK vs LASEK for astigmatism
If you have a low to moderate amount of astigmatism, either LASIK or LASEK can successfully eliminate that. I know this personally as both a surgeon and patient, as I had 1.50 diopters of astigmatism before my LASIK in 1999, and got rid of it totally (although I needed to be "double-carded" or my myopia shot first, then another treatment card inserted into the laser to treat my astigmatism, because this was so long ago it was before FDA approved the COMBINED treatment of myopia...
LASIK for astigmatism
Patients are delighted to find out that LASIK doesn't only address their nearsightedness and farsightedness, but it can correct relatively high levels of astigmatism as well. Set up a consultation with your eye doctor to make sure your degree of astigmatism isn't beyond the approved FDA treatment range. All the best!
Astigmatism correction with LASIK & PRK
Yes, LASIK & PRK, especially Wavefront-guided treatments, can correct astigmatism and make the vision better. The is a limit to the amount of astigmatism the laser can treat; but, most average amounts of astigmatism can easily be treated.