Presbyopia and myopia are two diseases that cannot be canceled out. Presbyopia is caused by the hardening of the lens and the decline of ciliary muscle function after ageing, which is manifested by the inability to see near objects clearly, and can be adjusted by wearing presbyopia glasses, but it is difficult to see distant objects with presbyopia glasses. Myopia is the result of genetic factors or bad eye habits that cause the eyeballs to lengthen, and objects are imaged before the retina, which manifests itself as the inability to see distant objects clearly. Myopia cannot be restored after its formation, and it needs to be corrected in time by wearing myopia spectacles with the appropriate degree of prescription, so as to make the visual acuity reach a normal level. Presbyopia and myopia can not be offset, daily should develop good eye habits, once the situation of unclear vision, it is recommended to go to the hospital ophthalmology consultation in a timely manner, to clarify the specific causes.