I Vision V12311 high quality oversized reading glasses unisex customized

I Vision optical reading glasses model V12311 is wholesale factory high quality reading glasses.  With reading glasses, you can get a clear image, so that vision can be corrected. physiological phenomenon, not a pathological state nor a refractive error, is the inevitable visual problems after people enter the middle and old age, the elderly due to the decline of the ability to regulate the eye and the formation of visual defects.  With the increase of age, the ability to adjust the eye gradually decreases, which causes the patient's visual proximity difficulty. Therefore, in the close work, it is necessary to add a convex lens in addition to the static refractive correction in order to have clear near vision. This phenomenon is called presbyopia.