How much will lasik affect my vision?
I have really bad eyes (not sure about the specifics, but as a reference I can’t read this text from more than 4 inches away with my glasses off). So how much can I expect lasik to improve my vision by?
If you are in focus at 4 inches you probably have at least 10 diopters of myopia or nearsightedness. This can be a limiting factor for LASIK because every diopter corrected requires more removal of tissue. If too little tissue is left, ectasia, or bulging out of the cornea on the eye can result. You may not be a candidate for this procedure and will have to have your corneal thickness measured first. An artificial lens surgically implanted in the eye is another option. Results of LASIK are generally good, but there is no guarantee on results and complications can ocurr. With higher prescriptions a low prescription may still be required, and touch up procedures often can’t be done due to not having enough residual tissue thickness.
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If you are in focus at 4 inches you probably have at least 10 diopters of myopia or nearsightedness. This can be a limiting factor for LASIK because every diopter corrected requires more removal of tissue. If too little tissue is left, ectasia, or bulging out of the cornea on the eye can result. You may not be a candidate for this procedure and will have to have your corneal thickness measured first. An artificial lens surgically implanted in the eye is another option. Results of LASIK are generally good, but there is no guarantee on results and complications can ocurr. With higher prescriptions a low prescription may still be required, and touch up procedures often can’t be done due to not having enough residual tissue thickness.
References :
http://www.fda.gov/MedicalDevices/ProductsandMedicalProcedures/SurgeryandLifeSupport/LASIK/ucm061366.htm
http://preventblindness.org/vlc/refractive_surgery.html
Comment by drkislingeyes — July 26, 2010 @ 10:54 pm