GKB Optic Technologies

Single vision lenses are used in the majority of prescription and reading glasses. For nearsightedness, farsightedness, or astigmatism, single vision lenses only accept one prescription. Depending on the sort of prescription they have, some people can use their single vision glasses for both near and far. The centre of single vision lenses for persons who are farsighted is thicker. Nearsighted wearers' single vision lenses have larger edges. Single vision lenses typically have a thickness of 3 to 4 mm. The thickness varies according to the frame size and lens material used.