I Vision VR12433 trendy retro round reading glasses

I Vision Optical VR12433 is high quality retro round reading glasses.Presbyopia is a 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.  

The occurrence and development of presbyopia are directly related to age, most of which appear after 45 years of age. The occurrence and severity of presbyopia are also related to other factors, such as the original refractive error, height reading habits, lighting and general health status.