Phototherapeutic keratectomy (PTK) involves using laser to remove small amounts of tissue from the cornea (the clear window at the front of the eye). This procedure is usually done to remove corneal scarring or for patients with weakened epithelium.
The laser procedure only takes a few minutes, with the laser operating for only a matter of seconds. A contact lens is placed on the eye to act as a bandage for the first few days while the clear skin covering the cornea heals. During this time the eye can be irritable and the vision poor.
Eyedrops will be required for a few weeks afterwards. This is to prevent scarring and infection which are possible after the procedure. Like any medical treatment, the outcome is not guaranteed, and results vary between different people. However, the risk of this procedure making the condition or vision worse is very low.
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