Photorefractive Keratectomy (PRK)
PRK is a refractive surgery in which the ophthalmologist directly applies the excimer laser onto the stroma of the cornea in order to change its curvature and correct its refractive defect.
This surgery requires an accurate assessment of the visual problem needing treatment, in order to apply the adequate amount of energy from the laser onto the surface of the cornea.
PRK is used to correct refractive problems such as nearsightedness or astigmatism. The post-operation symptoms that the patient may experience are sensations of a foreign body, burning and tearing for 2 or 3 days.
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