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In April 2018, the company launched Spectacles 2.0, which included additional colors, lighter frames, the option of mirrored lenses, and the removal of the bright yellow ring around the camera window. [20] In June 2018, Snap released an update for Spectacles allowing users to export videos from the glasses in square or widescreen format. [21]
Lenses of various colors can offer sufficient (or insufficient) UV protection. Regarding blue light, the color gives at least a first indication: Blue blocking lenses are commonly yellow or brown, whereas blue or gray lenses cannot offer the necessary blue light protection. However, not every yellow or brown lens blocks sufficient blue light.
Glass lenses use visible light to darken. They are principally used in glasses that are dark in bright sunlight, but clear, or more rarely, lightly tinted in low ambient light conditions. They darken significantly within about a minute of exposure to bright light and take somewhat longer to clear. A range of clear and dark transmittances is ...
Typical sunglasses lenses are tinted for protection against bright light or polarized to remove glare; photochromic glasses are clear or lightly tinted in dark or indoor conditions, but turn into sunglasses when they come into contact with ultraviolet light. Most over-the-counter sunglasses do not have corrective power in the lenses; however ...
The lens progressively darkens and turns yellow. [9] Blue light is absorbed by the lens, preventing blue light from reaching the retina at the back of the eye. [12] To prevent retinal damage, the lens has to lower transparency. [9] This reaction causes visual impairment and the development of cataracts, [13] [14] a cloudy region in the lens.
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related to: brightest yellow sunglass lens1stdibs.com has been visited by 100K+ users in the past month
The premier shopping destination for designers - Entrepreneur.com
I'm crazy about Warby Parker. I've bought 26 so far. - Oprah