Progressives can address multiple vision problems, but they're most commonly used to correct the effects of presbyopia. Presbyopia symptoms typtcally Start to appear around age 40 . Wearing progressive glasses isn't necessarily a sign of your age, however. There have also proven helpful for children Who have eye muscle and/or eye-focusing issues.
Progressive lens, the English term :Progressive lens, is a multi-focal length lens, different from traditional reading glasses and bifocal reading glasses, progressive lenses do not have the fatigue of bifocal use when the eye must constantly adjust the focal length, and there is no obvious dividing line between the two focal lengths. Comfortable to wear, the appearance is more beautiful, and gradually become the best choice for presbyopia people.