Orthokeratology is a new type of glasses to prevent and treat myopia in teenagers. It is a rigid orthokeratology lens designed by physical shaping method, which is reasonable and programmed. Wear it on the eye surface at night, and then the cornea will deform according to the reasonable shape we set. By changing the shape of cornea, some problems of myopia and astigmatism in teenagers can be corrected particularly effectively. The purpose of wearing glasses at night is to change myopia cornea into mild myopia or non-myopia cornea. During the day, the myopia of teenagers is reduced or disappeared due to the change of corneal shape. If they use it for a long time, myopia can be controlled to a certain extent, and it can also play a role in preventing myopia.

At present, this is a new technology to treat and prevent the aggravation of myopia, especially to control the myopia of teenagers.