0_Wizard
I wear glasses, also called eyeglasses which are plastic lenses mounted in a frame and worn over the nose.
Glasses, also known as eyeglasses or spectacles, are devices consisting of glass or hard plastic lenses mounted in a frame that holds them in front of a person's eyes, typically using a bridge over the nose and arms which rest over the ears.
chosen_Glasses_0
Glasses
chosen_topic_0_Glasses
Glasses
Glasses, also known as eyeglasses or spectacles, are devices consisting of glass or hard plastic lenses mounted in a frame that holds them in front of a person's eyes, typically using a bridge over the nose and arms which rest over the ears. Glasses are typically used for vision correction, such as with reading glasses and glasses used for nearsightedness. Safety glasses provide eye protection against flying debris for construction workers or lab technicians; these glasses may have protection for the sides of the eyes as well as in the lenses. Some types of safety glasses are used to protect against visible and near-visible light or radiation.
Sunglasses
Sunglasses or sun glasses are a form of protective eyewear designed primarily to prevent bright sunlight and high-energy visible light from damaging or discomforting the eyes. They can sometimes also function as a visual aid, as variously termed spectacles or glasses exist, featuring lenses that are colored, polarized or darkened. In the early 20th century, they were also known as sun cheaters (cheaters being an American slang term for glasses). The American Optometric Association recommends sunglasses whenever a person is in the sun to protect the eyes from ultraviolet radiation (UV) and blue light, which can cause several serious eye problems.
Corrective lens
A corrective lens is a lens typically worn in front of the eye to improve vision. The most common use is to treat refractive errors: myopia, hypermetropia, astigmatism, and presbyopia. Glasses or "spectacles" are worn on the face a short distance in front of the eye. Contact lenses are worn directly on the surface of the eye. Intraocular lenses are surgically implanted most commonly after cataract removal, but can be used for purely refractive purposes. Corrective lenses are typically prescribed by an ophthalmologist or an optometrist. The prescription consists of all the specifications necessary to make the lens.
Rimless eyeglasses
Rimless eyeglasses, are a type of eyeglasses in which the lenses are mounted directly to the bridge and/or temples. The style is divided into two subtypes: three-piece glasses are composed of lenses mounted to a bridge and two separate temple arms, while rimways (also called "cortlands") feature a supporting arch that connects the temples to the bridge and provides extra stability for the lenses. Rimless glasses were a popular style of eyeglasses from the 1880s until into the 1960s, and re-emerged in popularity in the latter part of the 20th century and early 21st century. Apple founder, Steve Jobs, began wearing round rimless eyeglasses in 1993 until his death in 2011, an 18 year run.
Contact lens
A contact lens, or simply contact, is a thin lens placed directly on the surface of the eye. Contact lenses are considered medical devices and can be worn to correct vision, or for cosmetic or therapeutic reasons. In 2004, it was estimated that 125 million people worldwide use contact lenses, including 28 to 38 million in the United States. In 2010, the worldwide market for contact lenses was estimated at $6.1 billion, while the US soft lens market was estimated at $2.1 billion. Multiple analysts estimated that the global market for contact lenses would reach $11.7 billion by 2015. , the average age of contact lens wearers globally was 31 years old, and two-thirds of wearers were female.
Optician
An optician, or "dispensing optician", is a technical practitioner who designs, fits and dispenses corrective lenses for the correction of a person's vision. Opticians determine the specifications of various ophthalmic appliances that will give the necessary correction to a person's eyesight. Some registered or licensed opticians also design and fit special appliances to correct cosmetic, traumatic or anatomical defects. These devices are called shells or artificial eyes. Other registered or licensed opticians manufacture lenses to their own specifications and design and manufacture spectacle frames and other devices.
History of photographic lens design
The invention of the camera in the early 19th century led to an array of lens designs intended for photography. The problems of photographic lens design, creating a lens for a task that would cover a large, flat image plane, were well known even before the invention of photography due to the development of lenses to work with the focal plane of the camera obscura. The early photographic experiments of Thomas Wedgwood, Nicéphore Niépce, Henry Fox Talbot, and Louis Daguerre all used simple single-element convex lenses. These lenses were found lacking. Simple lenses could not focus an image over a large flat film plane (Field curvature) and suffered from other optical aberrations.
1_Apprentice
I used to wear them also. When were they invented?
0_Wizard
They have been worn for hundreds of years. Mine are used for vision correction.
Glasses are typically used for vision correction, such as with reading glasses and glasses used for nearsightedness.
chosen_Glasses_0
Glasses
chosen_topic_0_Glasses
Corrective lens
A corrective lens is a lens typically worn in front of the eye to improve vision. The most common use is to treat refractive errors: myopia, hypermetropia, astigmatism, and presbyopia. Glasses or "spectacles" are worn on the face a short distance in front of the eye. Contact lenses are worn directly on the surface of the eye. Intraocular lenses are surgically implanted most commonly after cataract removal, but can be used for purely refractive purposes. Corrective lenses are typically prescribed by an ophthalmologist or an optometrist. The prescription consists of all the specifications necessary to make the lens.
LCA-Vision
LCA-Vision is a provider of photorefractive keratectomy in the United States under the LasikPlus brand. As of October 2010, LCA-Vision Inc. owns and operates 54 LasikPlus fixed-site laser vision correction centers across the United States and Canada. The company performs Custom LASIK, PRK and monovision treatment to correct nearsightedness, farsightedness, astigmatism and reduce the effects of presbyopia. According to the company, one million laser vision correction procedures have been performed at its LasikPlus vision centers since 1991. Laser Centers of America, Inc., LCA-Vision's corporate predecessor, was formed in 1986.
Contact lens
A contact lens, or simply contact, is a thin lens placed directly on the surface of the eye. Contact lenses are considered medical devices and can be worn to correct vision, or for cosmetic or therapeutic reasons. In 2004, it was estimated that 125 million people worldwide use contact lenses, including 28 to 38 million in the United States. In 2010, the worldwide market for contact lenses was estimated at $6.1 billion, while the US soft lens market was estimated at $2.1 billion. Multiple analysts estimated that the global market for contact lenses would reach $11.7 billion by 2015. , the average age of contact lens wearers globally was 31 years old, and two-thirds of wearers were female.
Emil Chynn
Emil William Chynn (born October 7, 1965) is a Chinese-American LASEK surgeon, author, researcher, and media personality. He owns the only laser vision correction center in the US specializing in Advanced Surface Ablation (ASA, comprising LASEK and epiLASEK), which unlike LASIK is a newer, safer way to correct refractive errors that does not involve cutting a flap into the cornea. Dr. Chynn has been featured in the New York Time, Wall Street Journal, on CNN and Discovery Channel, in Time Magazine online, as well as on ABC, NBC, CBS, and Fox News for LASEK as well as platinum "Eye Jewelry" and corneal tattoos.
LASIK MD
LASIK MD is a Canadian provider of laser vision correction and the largest provider of laser vision correction in North America based on procedure volume. As of 2013, LASIK MD performs over sixty percent of all laser vision correction procedures in Canada. LASIK MD was founded in 2001 by Dr. Mark Cohen and Dr. Avi Wallerstein with two initial clinics in Montreal, Quebec, Canada and Toronto, Ontario, Canada. As of 2012, there are 30 LASIK MD eye centres located across Canada. The clinics serve all major metropolitan areas throughout Canada. LASIK MD is a provider of laser vision correction, performing LASIK, PRK and keratoconus treatments.
Glasses
Glasses, also known as eyeglasses or spectacles, are devices consisting of glass or hard plastic lenses mounted in a frame that holds them in front of a person's eyes, typically using a bridge over the nose and arms which rest over the ears. Glasses are typically used for vision correction, such as with reading glasses and glasses used for nearsightedness. Safety glasses provide eye protection against flying debris for construction workers or lab technicians; these glasses may have protection for the sides of the eyes as well as in the lenses. Some types of safety glasses are used to protect against visible and near-visible light or radiation.
Charles Munnerlyn
Charles Munnerlyn (* 1940 in Shreveport, LA) is an American optical engineer. He constructed the first working excimer laser system for vision correction in 1985, and also developed the Munnerlyn Formula that dictates the amount of corneal tissue to be removed by the laser to correct vision disorders such as myopia and astigmatism. Munnerlyn is the founder of VISX, Incorporated, once the world's largest manufacturer of laser-based vision correction (LVC) systems. VISX is now owned by Abbott Laboratories. Charles Ray Munnerlyn received his bachelor's degree in physics from Texas A&M University in 1962 and a doctorate in optical engineering from the University of Rochester in 1969.
1_Apprentice
Oh wow. What type of doctor should I see to get glasses?