Contrast Lens - Reduces eye fatigue and eye strain caused by glare and blue light. Preserves color recognition, depth perception and contrast. An alternative to clear lens. 82% VLT Compliance: ANSI Z87.1-2010 certified. No video currently associated with this product.Product Reviews for Bolle Cobra Safety Glasses with Black Frame and Contrast Anti-fog LensBolle Cobra Safety Glasses with Black Frame and Contrast Anti-fog LensDanMarch 8, 2012So I use these goggles for two purposes: racquetball and chemistry. As sport safety glasses (for which I will say they are not designed) they are exceptional. They fog up a little, but they will unfog if taken off for any period of time. Unfortunately, the Contrast Coating actually makes telling color differences a little difficult. When I do titrations in chemistry I need to be able to see the first time a substance exhibits the slightest change in color. These make everything seem a little yellow and make it difficult. They're still great glasses though! This item can be found in the following sections: Home :: Products :: Safety Glasses :: Anti-Fog Safety Glasses :: Bolle Cobra Safety Glasses with Black Frame and Contrast Anti-fog Lens Home :: Products :: Safety Glasses :: Large Safety Glasses :: Bolle Cobra :: Bolle Cobra Safety Glasses with Black Frame and Contrast Anti-fog Lens |