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To clean glasses with lens wipes, wipe the insides of your lenses in horizontal motions. Once finished, wipe the outside of the lenses in vertical motions. Dry the lenses with a microfiber cloth.
A photochromic lens is an optical lens that darkens on exposure to light of sufficiently high frequency, most commonly ultraviolet (UV) radiation. In the absence of activating light, the lenses return to their clear state. Photochromic lenses may be made of polycarbonate, or another plastic. Glass lenses use visible light to darken.
Use contact lenses in place of or as well as eyeglasses. A contact lens rests directly on the surface of the cornea and moves in sync with all eye movements; consequently, a contact lens is always almost perfectly aligned on center with the pupil, and there is never any significant off-axis misalignment between the pupil and the optical center ...
Plastic lenses are lighter and shatter-resistant, but are more prone to scratching. Polycarbonate plastic lenses are the lightest, and are also almost shatterproof, making them good for impact protection. CR-39 is the most common plastic lens, due to low weight, high scratch resistance, and low transparency for ultraviolet and infrared radiation.
This kit is designed to clean pretty much anything you might put over your eyes — prescription eyewear, blue-light glasses, sunnies, virtual reality gear, even cameras and devices.
They were produced in clear, amber, green, and a high-density dark green for gunnery to facilitate spotting targets against the sun. Lens contractors were American Optical, Bausch & Lomb Optical and Libby-Owens-Ford. Small quantities of clear plastic lenses were produced in response to lenses being shattered by flying debris during combat use.
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