How to get rid of your glasses using laser surgery?
LASIK (Laser in Situ Keratomileusis) is the most common laser eye surgery performed to treat myopia, hyperopia, astigmastim, and presbyopia. It is the second most performed surgery in the world after cataract surgery.
The LASIK procedure combines a femtosecond laser (this step was previously performed using a microkeratome (blade) but femtosecond technology has proven its superiority and should be used in all cases nowadays) used to prepare a flap in corneal depth and an excimer laser to reshape the cornea and allow light entering the eye to be focused on the retina for clearer vision.
In order to benefit from LASIK surgery, you must have a regular cornea objectified by the topography and corneal tomography. It is best to have stable refraction (no increase in myopia of more than 0.5 diopters in a year) and this usually happens after 21 years. You should stop wearing contact lenses for 48 hours before your eye exam and before the LASIK procedure because the contact lens alters the natural shape of your cornea.
Typically, myopia up to 10 diopters, astigmatism up to 6 diopters, and hyperopia up to 6 diopters can be corrected by LASIK surgery. In some specific cases it may be possible to correct larger errors, but this should be assessed on a case-by-case basis.