Glasses Girls
Glasses Girls:Glasses (including glasses, specs (informal) or glasses (formal)) are frames with lenses worn in front of the eyes normally for vision correction, eye protection, or protection from UV rays.Glass Girl uses glass to correct their vision, and add more style.
Modern glasses are typically placed pads on the bridge of the nose and supported by the temple arms over Glasses Girls’ ears. Historical types include the pince-nez, monocle, eyeglass and scissors-glasses.
Lenses are usually made of plastic, including CR-39 and polycarbonate. These materials reduce the risk of breakage and weigh less than glass lenses.
Some plastics also have better optical properties than glass like better transmission of visible light and greater absorption of UV light. Some plastics have a higher refractive index than most types of glass, which is useful in the manufacture of corrective lenses shaped to correct various vision problems such as myopia, allowing thinner lenses for a particular recipe. Newer plastic lenses, called Izon can to correct for the symptoms of higher-order aberrations, which occur naturally on a person of the optical system (including the retina, lens and cornea).
Glasses Girls’ lenses create sharper vision for people who have problems with blurred vision or dull and have to reduce halos, starbursts, and comet-tails often associated with night driving.
Scratch-resistant coatings can be applied to them similar scratch resistance to glass on most plastic lenses. Hydrophobic coatings designed to ease cleaning are also available, as well as anti-reflective coatings to reduce glare, improve night vision and make the wearer’s eyes visible.
CR-39 lenses are the most common plastic lenses due to glasses girls’ low weight, high scratch resistance, low dispersion and low transparency to ultraviolet and infrared radiation. Polycarbonate lenses and Trivex are the lightest and most shatter-resistant, so it’s best for the impact protection, while polycarbonate has poor optics due to high dispersion, with a low Abbe number of 31
Not all lenses are exclusively designed for vision correction, but taken for the protection, display visual information (such as stereoscopy) or simply for aesthetic or fashion values. Safety glasses are a kind of eye protection from flying debris or against the visible and near visible light or radiation. Sunglasses allow better vision in bright daylight and can protect against damage by high UV-light.
