Single vision lenses have a single optical power throughout the entire lens, correcting vision for either nearsightedness or farsightedness.

Benefits:
Clear vision at one distance: Single vision lenses provide clear vision at either near or distance, depending on the individual's refractive error. Simplicity: They are straightforward and effective for correcting vision without the need for additional powers or segments.

Usage: Ideal for individuals who have a single refractive error, such as nearsightedness (myopia) or farsightedness (hyperopia).