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Blue Light is everywhere. The natural source of Blue Light outdoors is the sun, but it is artificially generated both outdoor and indoor from lighting. Other artificial indoor sources of Blue Light come from imaging devices (e.g. computer screens, tablets, smart-phones, and televisions) that can have a negative impact on humans. TrueBlue has developed three types of lenses: 

PhotoStress - Day Time Lens

For artificially occurring Blue Light indoors (from lighting, and imaging devices) to reduce vision fatigue and protect the eye’s retina.

MPF™ – Nighttime Lens

For artificially occurring Blue Light indoors in the evening - to aid with sleep and human performance.

Sunlens

For naturally occurring Blue Light outdoors- superior filtration and glare reduction.

All lenses are treated with Optical quality Anti-Reflective, Interference, Phobic and hard coatings. Options for frame materials include Rilsan, Beta-Plastic, and Acetates.