Glasses, also called eyeglasses or spectacles, are frames bearing lenses worn in front of the eyes, normally for vision correction, eye protection, or for protection from UV rays.
Modern glasses are typically supported by pads on the bridge of the nose and by temples placed over the ears. Historical types include the pince-nez, monocle, and lorgnette.
Eyeglass frames are commonly made from metal or plastic. Lenses were originally made from glass, but many are now made from various types of plastic, including CR-39 and polycarbonate. These materials reduce the danger of breakage and weigh less than glass lenses. Some plastics also have more advantageous optical properties than glass, such as better transmission of visible light and greater absorption of ultraviolet light. Some plastics have a greater index of refraction than most types of glass; this is useful in the making of corrective lenses shaped to correct various vision abnormalities such as myopia, allowing thinner lenses for a given prescription.
Scratch-resistant coatings can be applied to most plastic lenses giving them similar scratch resistance to glass. Hydrophobic coatings designed to ease cleaning are also available, as are anti-reflective coatings intended to improve night vision and make the wearer's eyes more visible.
CR-39 lenses are the most common plastic lenses due to their low weight, high scratch resistance, and low transparency for ultra violet and infrared radiation. Polycarbonate lenses are the lightest and most shatter-resistant, making them the best for impact protection, yet offer poor optics due to high dispersion, and having a low Abbe number of 31.
Not all glasses are designed solely for vision correction but are worn for protection, viewing visual information (such as stereoscopy) or simply just for aesthetic or fashion values. Safety glasses are a kind of eye protection against flying debris or against visible and near visible light or radiation. Sunglasses allow better vision in bright daylight, and may protect against damage from high levels of ultraviolet light.
Prado Vision and Lasik Center
7522 N. Himes Ave.
Tampa, Florida 33614
Prado Vision & Lasik Center-Brandon
206 Buckingham Place Ste 102
Brandon, Florida 33511
Schedule a complimentary LASIK evaluation today! The safest, most reliable, and proven method of LASIK Surgery available today! Personalized LASIK by Dr. Antonio Prado.
We will review the risks and benefits of Lasik and answer all your questions completely. We find that only 15 to 20 percent of patients are not Lasik candidates. Some of these may be candidates for other laser vision correction procedures, such as PRK.
The AcrySof® ReSTOR® Intraocular Lens (IOL) is uniquely designed to improve your vision at most distances. Dr. Antonio Prado is proficient at ensuring that your cataract surgery, featuring ReSTOR IOL insertion, will be safe, effective and painless. Combining the revolutionary refraction characteristics of the ReSTOR lens, and the exceptional experience and care of Dr. Prado, your Cataract Surgery and outcome will be unsurpassed.
Antonio Prado is the head ophthalmologist and laser eye surgeon of Tampa, Florida's Prado Vision and Lasik Center. Our center is comprised of the top ophthalmologists, optometrists, and refractive surgeons in Tampa, and we strive to provide excellence in all areas of eye care, including Lasik, CK®, cataract surgery, contact lenses, glasses, and more.
Prado Vision and Lasik Center, 7522 N. Himes Ave, Tampa, Florida 33614 ph: 813-931-0500
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