Phototherapeutic keratectomy (PTK) is a laser-based surgery used to treat corneal surface irregularities, scars, and diseases by removing damaged or abnormal tissue. This procedure uses an excimer laser to precisely remove the outer layers of the cornea, allowing the underlying tissue to heal and restore visual clarity.

PTK is often used to treat conditions such as corneal dystrophies, recurrent corneal erosions, and superficial scars caused by trauma or infection. The procedure can help improve vision, reduce symptoms like pain or irritation, and promote healing in patients with damaged corneal tissue.

PTK offers a safe and effective option for restoring corneal health and improving vision, particularly in cases where other treatments have not been successful.