Transepithelial PRK is a variation of photorefractive keratectomy (PRK) that involves the removal of the corneal epithelium with an alcohol solution before reshaping the cornea using an excimer laser. This method avoids the use of mechanical tools, making it more precise and reducing the risk of epithelial damage during the procedure.

Transepithelial PRK is often used to correct refractive errors like myopia, hyperopia, and astigmatism. It is a non-invasive procedure that can be a good alternative to LASIK, particularly for patients with thin corneas.

The procedure offers effective results with a longer recovery period than LASIK but is highly suitable for patients with specific corneal conditions.