Contact Lenses - Common Questions From New Wearers

Contact Lenses - Common Questions From New Wearers

kinh ap trong han quocNot even after RK, kinh ap trong han quoc or radial keratotomy, came a real technique for shortening the focal length of the nearsighted eyeball. This was the long awaited PRK, photorefractive keratotomy. Dependent on the area reshapes the cornea, in effect, shortens the focal length. A laser with low-heat UV radiation removes corneal material