Anti-Reflective Coating:  An extremely thin, clear lens coating that virtually eliminates reflection.  By all available light to pass through the lens, this coating reduces eyestrain produced by glare and reflection from headlights and computer monitors, increases contrast and improves clarity.  Cosmetically, this lens also enables others to see your eyes more clearly.  Anti-Reflective coating is an excellent choice for public speakers, those working with computers, or those patients experiencing difficulty with night time driving.
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Scratch Resistant Coating: This is a clear lens option that when added to standard plastic lenses will dramatically reduce the chance of the scratches to the lens.
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Ultraviolet Coating:  This virtually clear coating blocks UVA, UVB, and UVC bands of ultraviolet light waves.  Effective in reducing the risk of cataract development.  Sources include fluorescent lighting as well as natural lights.  Especially important in high altitude areas where there's more light exposure to UV.
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Tinted Lenses: Plastic lenses may be tinted any color.  This helps to block the bright light from the eyes.

Lens Design
Lens Material