Single vision lenses have only one prescription for farsightedness, nearsightedness, or astigmatism.
Most prescription glasses and reading glasses have single vision lenses.
Some people are able to use their single vision glasses for both far and near, depending on their type of prescription.
Single vision lenses for farsighted people are thicker at the center. Single vision lenses for wearers with nearsightedness are thicker at the edges.
Single vision lenses generally range between 3-4mm in thickness. The thickness varies depending on the size of the frame and lens material chosen.
Tags:1.74 lens,1.74 single vision lens