Single Vision Lenses Overview

Single vision lenses correct either farsightedness with convex “plus” lenses (thicker in the center, thinner at the edges) or nearsightedness with concave “minus” lenses (thinner in the center, thicker at the edges). In children, plus lenses may also be used to correct minor squints. First-time wearers often notice visual distortions: nearsighted users may feel the world looks smaller and farther away, while farsighted users experience a magnification effect. The eyes usually adapt quickly, and vision becomes clearer.

Types of Single Vision Lenses

Single vision lenses come in different shapes to suit specific vision needs, ensuring clarity and comfort across the lens surface:

• - Spherical Lenses – smooth, even curvature like a soccer ball; the most common and simple design for general nearsightedness or farsightedness.
• - Toric Lenses – two curvatures at perpendicular axes, like a rugby ball slice; used to correct astigmatism, where vision is blurred due to irregular eye shape.
• - Aspheric Lenses – slightly flatter toward the edges, providing sharper vision across the lens, reducing magnification differences, and creating thinner, more attractive lenses.

Tints and Coatings