Spectacle Lenses - Single Vision Lenses

Single Vision Lenses
Single Vision Lenses

Single vision lenses are designed for use at a fixed distance - either far distance (for driving or television for example), or for near viewing - either short distance for reading a book or general close tasks, or for intermediate viewing for a computer screen or sheet music.
Made from either plastic or glass, they are available also in higher index forms for lighter weight and thinner cosmetic appearance. Photochromic or Sun-reacting will darken when exposed to UV - a useful feature that effectively converts your glasses to sunglasses on bright days are available for most prescriptions, but be aware that it is UV that makes them darken. The effect is lessened when in the car when you are protected by your UV filtering windows.