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Youâll see more of the world. iD Single Vision lenses are the first to integrate your lens design on both the front and back surfaces, so you can see more clearly in all directions. Traditionally made single vision lenses have a constant curvature across the front surface, which makes peripheral vision almost impossible.
A single vision or as it sometimes is called tunnel vision can mean that you are only looking or focusing on one thing at a time. Many people have single vision when working. Edit