Solid Tints & Dyes
As opposed to the changeable photochromics, another option in colored lenses is a tint, which remains constant at all times. Tints and dyes are chosen for cosmetic purposes or to reduce glare, to provide some level of UV protection and to help counteract negative effects of certain lighted environments, such as fluorescent lighting in offices. Tints are available in plastic as well as glass lenses and can be had in almost any color of the rainbow. Lighter, fashion tints are used primarily for cosmetic purposes to enhance a wearer's looks. Darker tints allow the wearer to use the lenses as sunglasses.
Typically, fashion tints are applied in light pink, brown or gray, while sunglasses are usually gray or brown. A tint can be solid, when the entire lens is the same color, or gradient, which is a gradual fade from dark to light, usually fading from the top down.
Other colors can be applied to lenses for different purposes:
- Yellow, sometimes referred to as a "blue-blocker" because the color keeps blue light from entering the lens, is often the color of choice for target shooters because it decreases early morning haze and makes objects appear sharper, with more contrast with overcast skies.
- Gray is the general purpose tint because it tames bright sunlight.
- Green is sometimes used as a sunglass, though brown and gray are the most popular sun shades.
- Orange will brighten your scene. It is great for low light conditions.
- Red is a very uncomfortable color to look through, though it does have applications for certain ocular pathologies. Some people, however, enjoy seeing the world through "rose-colored glasses."
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