WONDERS OF PHOTOCHROMIC LENSES
PHOTOCHROMIC LENSES Photochromic lenses are eyeglass lenses that are clear (or nearly clear) indoors and darken automatically when exposed to sunlight. Other terms sometimes used for photochromic lenses include “light-adaptive lenses,” “light intelligent” and “variable tint lenses.” HOW PHOTOCHROMIC LENSES WORK The molecules responsible for causing photochromic lenses to darken are activated by the sun’s […]
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