Photorefractive keratectomy (PRK), a procedure still largely used today, is the oldest laser technique for correcting vision defects. It has existed for over 20 years.
With this method, thin bits of tissue from the surface of the cornea are first removed, and then the corneal shape is changed using an excimer laser.
This procedure is used mainly for low myopia and for corneas that are too thin to be operated by the Femto-Lasik technique. It is not indicated for severe myopia.
It sometimes takes 3 to 9 months to get a final result as it depends on the severity of the vision defect that has been corrected.
To know this we will need to do a thorough examination of your eyes.
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