A lens that has one prescription throughout the whole area of the lens. This may be a lens for distance, reading, computer or a high-powered occupational lens for fine detail work.

Alternatives to Single Vision Lenses

• Bifocal lenses - provide near- and far-distance vision correction
• Trifocal lenses - provide near, far and intermediate distance vision correction
• Progressive lenses - provide multi-distance vision correction with seamless transitions between the viewing areas.