Photochromatic: Photomochromatic or Photochromic lenses are often used for prescription glasses, but are available in non-prescription as well.
Coatings include photochromatic, mirror, tinted, and UV options, as well as branded selections like Transitions lenses.
Wearers of corrective glasses who are looking for a solution to the hassle of finding sunglasses that work with their glasses or paying for a second pair of glasses need look no further than photochromatic or photochromic lenses.
Photochromatic lenses react to ultraviolet (UV) light.
When the wearer is exposed to UV, photochromatic molecules (silver halide or silver chloride) that are deeply embedded in the lens begin to change shape.
Photochromatic, or photochromic, lenses, which change color according to light conditions, are also a popular choice for prescription eyeglass wearers.
A photochromatic lens may not provide UV protection -- if it doesn't, UV protective coatings can usually be applied.
Photochromatic lenses, which change according to the lighting conditions, are another option.
The lenses used for Serengeti sunglasses are photochromatic and can filter blue light which can be a distraction while driving.
Photosensitive (photochromatic) lenses that darken in the presence of bright light are handy for people who do not want to carry an extra set of glasses.
Photochromatic lenses are available in glass and plastic.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.