In laser vision correction or refractive surgery, if you have myopia, the centre of your cornea is flattened by removing small amounts of corneal tissue to reduce its refractive power. For hyperopia, your cornea is steepened to create more refractive power. If you have astigmatism, the laser smoothens the irregular shape of your cornea to even out its focusing power. There are currently no proven refractive surgery procedures to treat presbyopia alone.

Common laser vision correction procedures are photorefractive keratectomy (PRK), laser in-situ keratomileusis (LASIK) and wavefront- guided LASIK. Other refractive surgical procedures include phakic intraocular lens implants and Bioptics (a combination of LASIK and phakic intraocular lens implant).

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