Presbyopia occurs when the lens inside the eyeball gradually hardens under the influence of aging factors, the elasticity gradually decreases, and the regulating function of the ciliary muscle gradually decreases, thus making the eye unable to accurately focus its vision on near objects. Presbyopia is not only due to age, but also depends on the refractive state of the original young, and has some relationship with the usual habits of life, occupation and so on. Patients mainly show that they have blurred near objects and have to put them far away to see them, which is more obvious when there is insufficient light. It is recommended that patients with presbyopia should go to the hospital in time for relevant examination and optometry and choose suitable glasses for correction, and it is not recommended to buy presbyopia glasses on the internet or in stores.