![]() Effectively, they are normal eyeglasses that transition to sunglasses, to allow for improved visibility in the absence or presence of light. Photochromic lenses are eyeglasses lenses that are designed to be clear (or almost entirely clear) indoors, and to automatically darken in outdoor, bright conditions. They can even cut down on the harmful glare of electronic devices. Photochromic lenses are very useful for driving, sports, and outdoor activities. ![]() ![]() is Transitions Optical, which is why photochromic lenses are commonly referred to as transition lenses. The most popular manufacturer of photochromic lenses in the U.S. This is the result of chemical responses to the presence (and absence) of ultraviolet light. Photochromic lenses, sometimes referred to as transition lenses, are eyeglass lenses that will turn dark (resembling sunglasses) in sunlight and become clear again when indoors. Can Prescription Lenses Be Made with Photochrhealtomic Lenses?.
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