What is LASEK? Lasek is a new excimer laser procedure invented by Camellin. The most important feature of this procedure is the creation and preservation of an intact corneal epithelial flap after infiltration of the corneal epithelium with 20% ethanol, which compensates for the lack of a barrier for a short period of time after traditional PRK, reduces the resulting pain, speeds up the recovery of vision and significantly reduces the incidence of corneal haze. clouding of the cornea. LASEK is suitable for the treatment of mild to moderate myopia and astigmatism; partial high myopia with relatively thin corneas; and myopic patients with a high risk of corneal flap distance (e.g., sports, impact). antagonistic practitioners). LASEK surgery steps: 1, preoperative surface anesthesia with 0.5% oxybuprocaine; 2, placed on the cornea with an 8.5mm diameter ethanol solution mask, injected with 20% ethanol and held for 15-30s to loosen the connection between the epithelium and the anterior elasticity; 3, equilibrium solution to rinse the ethanol; 4, separation of the flap to the corneal edge with a hoe shaped corneal epithelial separator, followed by laser cutting; 5, cutting Afterwards, the epithelial flap is reset with a corneal epithelial repositioner, aligned neatly, and bandage type corneal contact lenses are worn. Myopic friends need to understand that both LASIK and LASEK corrective myopia surgery is primarily to improve naked eye vision and remove your dependence on glasses, each with its own advantages and disadvantages. As to what kind of surgery to choose, it should be chosen by a professional refractive surgeon with the characteristics of the myopic patient’s eyes themselves, and pre-operative examination is crucial. It should be the best surgery for you.