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EO-Executive Optical - “Photochromic lenses or transition lenses are eyeglass lenses that darken automatically when exposed to sunlight, then fade back when you return indoors.” Source: http://www.allaboutvision.com/lenses/photochromic.htm | Facebook
Sunglasses With Transition Lenses: Pros and Cons - American Academy of Ophthalmology
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The Science of Shade: Unlocking Photochromic Lenses | HowStuffWorks
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Mannys Eyewear - Photochromic or transition lenses are lenses that are clear (or nearly clear) indoors and darken automatically when exposed to sunlight. It is one of the coolest inventions in the
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The Pros and Cons of Transition Lenses
Photochromic Lenses: How Do They Work? | Warby Parker