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A member asked:
What are the best eyeglass lenses that change to dark shade ?
6 doctors weighed in across 2 answers
Photochromic lenses: Check info in this website below. http://www.viziooptic.com/eyeglass-prescription-lenses/introduction-to-color-changing-eyeglass-lenses-transition-lenses-photochromic-lenses.aspx.
Answered 10/3/2016
6.2k views
Transitions: My personal favorite is transitions xtraactive which is one of the few photochromic lenses to actually darken in the car. Most lenses that darken automatically are activated by ultraviolet light and need to be directly expsed to uv light in order to activate/darken. The transition xtraactive lenses have a slight tint indoors but will darken in the car as well as outdoors.
Answered 10/3/2016
6.1k views
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