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Index 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. [1]

173 relations: Accommodation (eye), Acrylonitrile butadiene styrene, Active shutter 3D system, Adjustable-focus eyeglasses, Ageing, Alps, Aluminium, Anaglyph 3D, Anne Kirkbride, Aperture, Astigmatism, Aviator sunglasses, Bad Wildungen, Baden-Powell's unilens, Barry Goldwater, Benjamin Franklin, Berthold Laufer, Beryllium, Bifocals, Binoculars, Bioptics (device), Book of Optics, British Journal of Ophthalmology, Browline glasses, Buddy Holly, Bug-eye glasses, Carl Zeiss AG, Cat eye glasses, CBS News, Celle, Cellulose acetate, Chef, Clark Kent, Competition (economics), Contact lens, Convent, Coronation Street, Corrective lens, Deirdre Barlow, Diana Prince, Diffraction, Do it yourself, Drew Carey, Edward Scarlett, Elasticity (physics), England, Eric Sykes, Eye examination, Eye protection, Eyeglass prescription, ..., Far-sightedness, Fashion, Fused filament fabrication, Gazette of the United States, Geek, George Biddell Airy, George Whatley, Germany, GI glasses, Girolamo Savonarola, Goggles, Gold, Halo effect, Harold Lloyd, Harry Potter (character), Hat, Head-mounted display, Headache, Hearing aid, Hearing loss, History of optics, Horn-rimmed glasses, HowStuffWorks, Human eye, Ibn al-Haytham, Ibn Sahl (mathematician), Internet Archive, Inuit, Iron Chef, Japan, Johannes Kepler, John Fenno, John Lennon, Jordan of Pisa, Joshua Silver, Laser, LASIK, Latin translations of the 12th century, Lens (anatomy), Lens (optics), Lensless glasses, Lensmeter, Light, Lions Clubs International, Liquid-crystal display, Lorgnette, Marco Polo, Masaharu Morimoto, Mirrored sunglasses, Monocle, Monopolistic competition, Moritz von Rohr, National Basketball Association, Near-sightedness, New Eyes for the Needy, New York (state), Nickel titanium, Nylon, Ophthalmology, Optometry, Pennsylvania, Pharmacy (shop), Photochromic lens, Photography, Photosensitivity, Pince-nez, Pinhole glasses, Pisa, Polarization (waves), Polarized 3D system, Polylactic acid, Popular Science, Post-game show, Presbyopia, Price elasticity of demand, Price war, Progressive lens, Ptolemy, Quality of life, Radiation, Reading stone, Refractive error, Refractive index, Refractive surgery, Rimless eyeglasses, Rivet, Robert Grosseteste, Roger Bacon, Salvino D'Armati, Scissors-glasses, Scriptorium, Selective laser sintering, Shape-memory alloy, Shutter (photography), Silver, Smoky quartz, Snow goggles, Squash (sport), Stainless steel, Stereoscopy, Stereotype, Steve Urkel, Sunglasses, Superhero, Superman, Telescope, Theodore Roosevelt, Titanium, Tommaso da Modena, Trifocal lenses, Ultraviolet, Unite For Sight, United Kingdom, United States, Visual impairment, Welding, Welding helmet, Wienhausen Abbey, Wonder Woman, X-ray vision, 3D film, 3D printing, 60 Minutes. Expand index (123 more) »

Accommodation (eye)

Accommodation is the process by which the vertebrate eye changes optical power to maintain a clear image or focus on an object as its distance varies.

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Acrylonitrile butadiene styrene

Acrylonitrile butadiene styrene (ABS) (chemical formula (C8H8)x·(C4H6)y·(C3H3N)z) is a common thermoplastic polymer.

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Active shutter 3D system

An active shutter 3D system (a.k.a. alternate frame sequencing, alternate image, AI, alternating field, field sequential or eclipse method) is a technique of displaying stereoscopic 3D images.

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Adjustable-focus eyeglasses

Adjustable focus eyeglasses are eyeglasses with an adjustable focal length.

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Ageing or aging (see spelling differences) is the process of becoming older.

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The Alps (Alpes; Alpen; Alpi; Alps; Alpe) are the highest and most extensive mountain range system that lies entirely in Europe,The Caucasus Mountains are higher, and the Urals longer, but both lie partly in Asia.

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Aluminium or aluminum is a chemical element with symbol Al and atomic number 13.

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Anaglyph 3D

Anaglyph 3D is the name given to the stereoscopic 3D effect achieved by means of encoding each eye's image using filters of different (usually chromatically opposite) colors, typically red and cyan.

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Anne Kirkbride

Anne Kirkbride (21 June 1954 – 19 January 2015) was an English actress, known for her long-running role as Deirdre Barlow in the ITV soap Coronation Street, which she played for over 41 years from 1972 to 2014.

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In optics, an aperture is a hole or an opening through which light travels.

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Astigmatism is a type of refractive error in which the eye does not focus light evenly on the retina.

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Aviator sunglasses

Aviator sunglasses are a style of sunglasses that were developed by Bausch & Lomb.

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Bad Wildungen

Bad Wildungen, officially the City of Bad Wildungen (German: Stadt Bad Wildungen), is a state-run spa and a small town in Waldeck-Frankenberg district in Hesse, Germany.

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Baden-Powell's unilens

The unilens monocular is a simple telescope for field use, designed by Robert Baden-Powell.

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Barry Goldwater

Barry Morris Goldwater (January 2, 1909 – May 29, 1998) was an American politician, businessman, and author who was a five-term United States Senator from Arizona (1953–65, 1969–87) and the Republican Party's nominee for President of the United States in 1964.

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Benjamin Franklin

Benjamin Franklin (April 17, 1790) was an American polymath and one of the Founding Fathers of the United States.

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Berthold Laufer

Berthold Laufer (October 11, 1874 – September 13, 1934) was an anthropologist and historical geographer with an expertise in East Asian languages.

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Beryllium is a chemical element with symbol Be and atomic number 4.

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Bifocals are eyeglasses with two distinct optical powers.

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Binoculars or field glasses are two telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects.

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Bioptics (device)

Bioptics, also known as a bioptic in the singular, and sometimes more formally termed a bioptic telescope, is a term for a pair of vision-enhancement lenses.

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Book of Optics

The Book of Optics (Kitāb al-Manāẓir; Latin: De Aspectibus or Perspectiva; Italian: Deli Aspecti) is a seven-volume treatise on optics and other fields of study composed by the medieval Arab scholar Ibn al-Haytham, known in the West as Alhazen or Alhacen (965– c. 1040 AD).

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British Journal of Ophthalmology

The British Journal of Ophthalmology is a peer-reviewed medical journal covering all aspects of ophthalmology.

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Browline glasses

Browline glasses are a style of eyeglass frames which were very popular during the 1950s and 1960s, especially in the United States of America.

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Buddy Holly

Charles Hardin Holley (September 7, 1936 – February 3, 1959), known as Buddy Holly, was an American musician, singer-songwriter and record producer who was a central and pioneering figure of mid-1950s rock and roll.

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Bug-eye glasses

Bug-eye glasses are a form of eyewear.

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Carl Zeiss AG

Carl Zeiss, branded as ZEISS, is a German manufacturer of optical systems, industrial measurements and medical devices, founded in Jena, Germany in 1846 by optician Carl Zeiss.

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Cat eye glasses

Cat eye glasses (sometimes called "cat eyes" or "cat glasses") are a shape of women's and sometimes men's eyewear.

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CBS News

CBS News is the news division of American television and radio service CBS.

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Celle is a town and capital of the district of Celle, in Lower Saxony, Germany.

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Cellulose acetate

Cellulose acetate is the acetate ester of cellulose.

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A chef is a trained professional cook who is proficient in all aspects of food preparation, often focusing on a particular cuisine.

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Clark Kent

Clark Joseph Kent is a fictional character appearing in American comic books published by DC Comics.

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Competition (economics)

In economics, competition is a condition where different economic firmsThis article follows the general economic convention of referring to all actors as firms; examples in include individuals and brands or divisions within the same (legal) firm.

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Contact lens

A contact lens, or simply contact, is a thin lens placed directly on the surface of the eye.

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A convent is either a community of priests, religious brothers, religious sisters, or nuns; or the building used by the community, particularly in the Catholic Church and the Anglican Communion.

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Coronation Street

Coronation Street (also informally referred to as Corrie) is a British soap opera created by Granada Television and shown on ITV since 9 December 1960.

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Corrective lens

A corrective lens is a lens typically worn in front of the eye to improve vision.

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Deirdre Barlow

Deirdre Barlow (also Hunt, Langton and Rachid) was a fictional character from the British ITV soap opera, Coronation Street, played by Anne Kirkbride.

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Diana Prince

Diana Prince is a fictional character appearing regularly in stories published by DC Comics, as the secret identity of the Amazonian superhero Wonder Woman, who bought the credentials and identity from a United States Army nurse named Diana Prince who went to South America and married her fiancé to become Diana White.

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--> Diffraction refers to various phenomena that occur when a wave encounters an obstacle or a slit.

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Do it yourself

"Do it yourself" ("DIY") is the method of building, modifying, or repairing things without the direct aid of experts or professionals.

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Drew Carey

Drew Allison Carey (born May 23, 1958) is an American actor, comedian, sports executive, and game show host.

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Edward Scarlett

Edward Scarlett (1688 - 1743 in London) was an English optician and instrument maker, who first invented an eyeglass frame with earhooks in 1727.

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Elasticity (physics)

In physics, elasticity (from Greek ἐλαστός "ductible") is the ability of a body to resist a distorting influence and to return to its original size and shape when that influence or force is removed.

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England is a country that is part of the United Kingdom.

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Eric Sykes

Eric Sykes, (4 May 1923 – 4 July 2012) was an English radio, stage, television and film writer, comedian, actor, and director whose performing career spanned more than 50 years.

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Eye examination

An eye examination is a series of tests performed by an ophthalmologist (medical doctor), optometrist, or orthoptist assessing vision and ability to focus on and discern objects, as well as other tests and examinations pertaining to the eyes.

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Eye protection

Eye protection is protective gear for the eyes, which comes in many types depending upon the threat that is to be reduced.

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Eyeglass prescription

An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist or ophthalmologist, that specifies the value of all parameters the prescriber has deemed necessary to construct and/or dispense corrective lenses appropriate for a patient.

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Far-sightedness, also known as hyperopia, is a condition of the eye in which light is focused behind, instead of on, the retina.

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Fashion is a popular style, especially in clothing, footwear, lifestyle products, accessories, makeup, hairstyle and body.

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Fused filament fabrication

Fused filament fabrication (FFF) is a 3D printing process that uses a continuous filament of a thermoplastic material.

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Gazette of the United States

The Gazette of the United States (1789-1793) was an early American partisan newspaper first issued on April 15, 1789, as a biweekly publication friendly to the administration of George Washington, and to the policies and members of the emerging Federalist Party.

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The word geek is a slang term originally used to describe eccentric or non-mainstream people; in current use, the word typically connotes an expert or enthusiast or a person obsessed with a hobby or intellectual pursuit, with a general pejorative meaning of a "peculiar person, especially one who is perceived to be overly intellectual, unfashionable, boring, or socially awkward".

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George Biddell Airy

Sir George Biddell Airy (27 July 18012 January 1892) was an English mathematician and astronomer, Astronomer Royal from 1835 to 1881.

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George Whatley

George Whatley, Esq, was a contemporary, friend and correspondent of Benjamin Franklin.

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Germany (Deutschland), officially the Federal Republic of Germany (Bundesrepublik Deutschland), is a sovereign state in central-western Europe.

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GI glasses

GI glasses are eyeglasses issued by the American military to its service members.

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Girolamo Savonarola

Girolamo Savonarola (21 September 1452 – 23 May 1498) was an Italian Dominican friar and preacher active in Renaissance Florence.

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Goggles, or safety glasses, are forms of protective eyewear that usually enclose or protect the area surrounding the eye in order to prevent particulates, water or chemicals from striking the eyes.

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Gold is a chemical element with symbol Au (from aurum) and atomic number 79, making it one of the higher atomic number elements that occur naturally.

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Halo effect

The halo effect is a type of immediate judgement discrepancy, or cognitive bias, where a person making an initial assessment of another person, place, or thing will assume ambiguous information based upon concrete information.

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Harold Lloyd

Harold Clayton Lloyd Sr. (April 20, 1893 – March 8, 1971) was an American actor, comedian, director, producer, screenwriter, and stunt performer who is best known for his silent comedy films.

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Harry Potter (character)

Harry James Potter is the title character and protagonist of J. K. Rowling's Harry Potter series.

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A hat is a head covering which is worn for various reasons, including protection against weather conditions, ceremonial reasons such as university graduation, religious reasons, safety, or as a fashion accessory.

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Head-mounted display

A head-mounted display (or helmet-mounted display, for aviation applications), both abbreviated HMD, is a display device, worn on the head or as part of a helmet, that has a small display optic in front of one (monocular HMD) or each eye (binocular HMD).

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Headache is the symptom of pain anywhere in the region of the head or neck.

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Hearing aid

A hearing aid is a device designed to improve hearing by making sound audible to a person with hearing loss.

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Hearing loss

Hearing loss, also known as hearing impairment, is a partial or total inability to hear.

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History of optics

Optics began with the development of lenses by the ancient Egyptians and Mesopotamians, followed by theories on light and vision developed by ancient Greek philosophers, and the development of geometrical optics in the Greco-Roman world.

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Horn-rimmed glasses

Horn-rimmed glasses are a type of eyeglasses.

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HowStuffWorks is an American commercial educational website founded by Marshall Brain to provide its target audience an insight into the way many things work.

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Human eye

The human eye is an organ which reacts to light and pressure.

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Ibn al-Haytham

Hasan Ibn al-Haytham (Latinized Alhazen; full name أبو علي، الحسن بن الحسن بن الهيثم) was an Arab mathematician, astronomer, and physicist of the Islamic Golden Age.

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Ibn Sahl (mathematician)

Ibn Sahl (full name Abū Saʿd al-ʿAlāʾ ibn Sahl أبو سعد العلاء ابن سهل; c. 940–1000) was a Muslim Persian mathematician and physicist of the Islamic Golden Age, associated with the Buwayhid court of Baghdad.

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Internet Archive

The Internet Archive is a San Francisco–based nonprofit digital library with the stated mission of "universal access to all knowledge." It provides free public access to collections of digitized materials, including websites, software applications/games, music, movies/videos, moving images, and nearly three million public-domain books.

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The Inuit (ᐃᓄᐃᑦ, "the people") are a group of culturally similar indigenous peoples inhabiting the Arctic regions of Greenland, Canada and Alaska.

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Iron Chef

is a Japanese television cooking show produced by Fuji Television.

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Japan (日本; Nippon or Nihon; formally 日本国 or Nihon-koku, lit. "State of Japan") is a sovereign island country in East Asia.

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Johannes Kepler

Johannes Kepler (December 27, 1571 – November 15, 1630) was a German mathematician, astronomer, and astrologer.

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John Fenno

John Fenno (Aug. 12, 1751 (O.S.) – Sept. 14, 1798), was a Federalist Party editor and major figure in the history of American newspapers.

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John Lennon

John Winston Ono Lennon (9 October 19408 December 1980) was an English singer, songwriter, and peace activist who co-founded the Beatles, the most commercially successful band in the history of popular music.

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Jordan of Pisa

Blessed Jordan of Pisa (or Giordano da Pisa) (c. 1255 – 19 August 1311) was a Dominican theologian and preacher, the first whose vernacular Italian sermons are preserved.

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Joshua Silver

Professor Joshua D. Silver is a UK physicist whose discoveries have included a new way to change the curvature of lenses, with significant application for the low-cost manufacture of corrective lenses and adjustable spectacles, especially in low-income countries.

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A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.

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LASIK or Lasik (laser-assisted in situ keratomileusis), commonly referred to as laser eye surgery or laser vision correction, is a type of refractive surgery for the correction of myopia, hyperopia, and astigmatism.

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Latin translations of the 12th century

Latin translations of the 12th century were spurred by a major search by European scholars for new learning unavailable in western Europe at the time; their search led them to areas of southern Europe, particularly in central Spain and Sicily, which recently had come under Christian rule following their reconquest in the late 11th century.

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Lens (anatomy)

The lens is a transparent, biconvex structure in the eye that, along with the cornea, helps to refract light to be focused on the retina.

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Lens (optics)

A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction.

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Lensless glasses

Lensless glasses are glasses that lack lenses.

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A lensmeter or lensometer, also known as a focimeter or vertometer, is an ophthalmic instrument.

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Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum.

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Lions Clubs International

Lions Clubs International (LCI) is an international secular, non-political service organization established originally in 1916 in chicago, Illinois by Melvin Jones.

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Liquid-crystal display

A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals.

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A lorgnette is a pair of spectacles with a handle, used to hold them in place, rather than fitting over the ears or nose.

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Marco Polo

Marco Polo (1254January 8–9, 1324) was an Italian merchant, explorer, and writer, born in the Republic of Venice.

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Masaharu Morimoto

is a Japanese chef, best known as an Iron Chef on the Japanese TV cooking show Iron Chef and its spinoff Iron Chef America.

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Mirrored sunglasses

Mirrored sunglasses are sunglasses with a reflective optical coating (called a mirror coating or flash coating) on the outside of the lenses to make them appear like small mirrors.

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A monocle is a type of corrective lens used to correct or enhance the vision in only one eye.

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Monopolistic competition

Monopolistic competition is a type of imperfect competition such that many producers sell products that are differentiated from one another (e.g. by branding or quality) and hence are not perfect substitutes.

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Moritz von Rohr

Moritz von Rohr (4 April 1868 – 20 June 1940) was an optical scientist at Carl Zeiss in Jena, Germany.

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National Basketball Association

The National Basketball Association (NBA) is a men's professional basketball league in North America; composed of 30 teams (29 in the United States and 1 in Canada).

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Near-sightedness, also known as short-sightedness and myopia, is a condition of the eye where light focuses in front of, instead of on, the retina.

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New Eyes for the Needy

New Eyes for the Needy is a non-profit organization started in 1932 as New Eyes (incorporated 1948) and based in Short Hills, New Jersey, which provides people in the United States with eyeglasses and sends recycled eyeglasses to needy people overseas.

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New York (state)

New York is a state in the northeastern United States.

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Nickel titanium

Nickel titanium, also known as Nitinol (part of shape memory alloy), is a metal alloy of nickel and titanium, where the two elements are present in roughly equal atomic percentages e.g. Nitinol 55, Nitinol 60.

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Nylon is a generic designation for a family of synthetic polymers, based on aliphatic or semi-aromatic polyamides.

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Ophthalmology is a branch of medicine and surgery (both methods are used) that deals with the anatomy, physiology and diseases of the eyeball and orbit.

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Optometry is a health care profession which involves examining the eyes and applicable visual systems for defects or abnormalities as well as the medical diagnosis and management of eye disease.

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Pennsylvania (Pennsylvania German: Pennsylvaani or Pennsilfaani), officially the Commonwealth of Pennsylvania, is a state located in the northeastern and Mid-Atlantic regions of the United States.

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Pharmacy (shop)

A pharmacy (also called "drugstore" in American English or "community pharmacy" or "chemist's" in Commonwealth English) is a retail shop which provides prescription drugs, among other products.

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Photochromic lens

Photochromic lenses are optical lenses that darken on exposure to specific types of light of sufficient intensity, most commonly ultraviolet (UV) radiation.

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Photography is the science, art, application and practice of creating durable images by recording light or other electromagnetic radiation, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film.

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Photosensitivity is the amount to which an object reacts upon receiving photons, especially visible light.

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Pince-nez is a style of glasses, popular in the 19th century, that are supported without earpieces, by pinching the bridge of the nose.

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Pinhole glasses

Pinhole glasses, also known as stenopeic glasses, are eyeglasses with a series of pinhole-sized perforations filling an opaque sheet of plastic in place of each lens.

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Pisa is a city in the Tuscany region of Central Italy straddling the Arno just before it empties into the Ligurian Sea.

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Polarization (waves)

Polarization (also polarisation) is a property applying to transverse waves that specifies the geometrical orientation of the oscillations.

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Polarized 3D system

A polarized 3D system uses polarization glasses to create the illusion of three-dimensional images by restricting the light that reaches each eye (an example of stereoscopy).

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Polylactic acid

Poly(lactic acid) or polylactic acid or polylactide (PLA) is a biodegradable and bioactive thermoplastic aliphatic polyester derived from renewable resources, such as corn starch (in the United States and Canada), cassava roots, chips or starch (mostly in Asia), or sugarcane (in the rest of the world).

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Popular Science

Popular Science (also known as PopSci) is an American quarterly magazine carrying popular science content, which refers to articles for the general reader on science and technology subjects.

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Post-game show

A post-game, postgame, or post-match show is a TV or radio presentation that occurs immediately after the live broadcast of a major sporting event.

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Presbyopia is a condition associated with the aging of the eye that results in progressively worsening ability to focus clearly on close objects.

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Price elasticity of demand

Price elasticity of demand (PED or Ed) is a measure used in economics to show the responsiveness, or elasticity, of the quantity demanded of a good or service to a change in its price when nothing but the price changes.

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Price war

Price war is "commercial competition characterized by the repeated cutting of prices below those of competitors".

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Progressive lens

Progressive lenses, also called multifocal lenses, progressive addition lenses (PAL), varifocal lenses, progressive power lenses, graduated prescription lenses, or progressive spectacle lenses are corrective lenses used in eyeglasses to correct presbyopia and other disorders of accommodation.

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Claudius Ptolemy (Κλαύδιος Πτολεμαῖος, Klaúdios Ptolemaîos; Claudius Ptolemaeus) was a Greco-Roman mathematician, astronomer, geographer, astrologer, and poet of a single epigram in the Greek Anthology.

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Quality of life

Quality of life (QOL) is the general well-being of individuals and societies, outlining negative and positive features of life.

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In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium.

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Reading stone

A reading stone was an approximately hemispherical lens that was placed on top of text to magnify the letters so that people with presbyopia could read it more easily.

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Refractive error

Refractive error, also known as refraction error, is a problem with focusing light accurately onto the retina due to the shape of the eye.

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Refractive index

In optics, the refractive index or index of refraction of a material is a dimensionless number that describes how light propagates through that medium.

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Refractive surgery

Refractive eye surgery is any eye surgery used to improve the refractive state of the eye and decrease or eliminate dependency on glasses or contact lenses.

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Rimless eyeglasses

Rimless eyeglasses, are a type of eyeglasses in which the lenses are mounted directly to the bridge and/or temples.

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A rivet is a permanent mechanical fastener.

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Robert Grosseteste

Robert Grosseteste (Robertus Grosseteste; – 9 October 1253) was an English statesman, scholastic philosopher, theologian, scientist and Bishop of Lincoln.

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Roger Bacon

Roger Bacon (Rogerus or Rogerius Baconus, Baconis, also Rogerus), also known by the scholastic accolade Doctor, was an English philosopher and Franciscan friar who placed considerable emphasis on the study of nature through empiricism.

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Salvino D'Armati

Salvino D'Armato degli Armati of Florence (died 1317) is sometimes credited with the invention of eyeglasses, however this claim was shown to be a hoax.

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Scissors-glasses (or binocles-ciseaux) are eyeglasses, normally used to correct distance-vision, mounted on scissoring stems rather than on temple stems as modern eyeglasses are.

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Scriptorium, literally "a place for writing", is commonly used to refer to a room in medieval European monasteries devoted to the writing, copying and illuminating of manuscripts by monastic scribes.

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Selective laser sintering

Selective laser sintering (SLS) is an additive manufacturing (AM) technique that uses a laser as the power source to sinter powdered material (typically nylon/polyamide), aiming the laser automatically at points in space defined by a 3D model, binding the material together to create a solid structure.

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Shape-memory alloy

A shape-memory alloy (SMA, smart metal, memory metal, memory alloy, muscle wire, smart alloy) is an alloy that "remembers" its original shape and that when deformed returns to its pre-deformed shape when heated.

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Shutter (photography)

In photography, a shutter is a device that allows light to pass for a determined period, exposing photographic film or a light-sensitive electronic sensor to light in order to capture a permanent image of a scene.

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Silver is a chemical element with symbol Ag (from the Latin argentum, derived from the Proto-Indo-European ''h₂erǵ'': "shiny" or "white") and atomic number 47.

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Smoky quartz

Smoky quartz is a grey, translucent variety of quartz that ranges in clarity from almost complete transparency to an almost-opaque brownish-gray or black crystal.

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Snow goggles

Snow goggles (Inuktitut: ilgaak or iggaak, syllabics: ᐃᓪᒑᒃ or ᐃᒡᒑᒃ; Yup'ik: nigaugek, pl. nigauget) are a type of eyewear traditionally used by the Inuit and the Yupik, formerly known as Eskimo, peoples of the Arctic to prevent snow blindness.

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Squash (sport)

Squash is a ball sport played by two (singles) or four players (doubles squash) in a four-walled court with a small, hollow rubber ball.

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Stainless steel

In metallurgy, stainless steel, also known as inox steel or inox from French inoxydable (inoxidizable), is a steel alloy with a minimum of 10.5% chromium content by mass.

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Stereoscopy (also called stereoscopics, or stereo imaging) is a technique for creating or enhancing the illusion of depth in an image by means of stereopsis for binocular vision.

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In social psychology, a stereotype is an over-generalized belief about a particular category of people.

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Steve Urkel

Steven Quincy Urkel is a fictional character on the ABC/CBS sitcom Family Matters who was portrayed by Jaleel White.

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Sunglasses or sun glasses (informally called shades) are a form of protective eyewear designed primarily to prevent bright sunlight and high-energy visible light from damaging or discomforting the eyes.

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A superhero (sometimes rendered super-hero or super hero or Super) is a type of heroic stock character, usually possessing supernatural or superhuman powers, who is dedicated to fighting the evil of his/her universe, protecting the public, and usually battling supervillains.

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Superman is a fictional superhero appearing in American comic books published by DC Comics.

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A telescope is an optical instrument that aids in the observation of remote objects by collecting electromagnetic radiation (such as visible light).

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Theodore Roosevelt

Theodore Roosevelt Jr. (October 27, 1858 – January 6, 1919) was an American statesman and writer who served as the 26th President of the United States from 1901 to 1909.

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Titanium is a chemical element with symbol Ti and atomic number 22.

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Tommaso da Modena

Tomaso Barisini, better known as Tommaso da Modena and sometimes called Tomaso Baffini (1326 – 1379) was an Italian painter of the mid-14th century.

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Trifocal lenses

Trifocals are eyeglasses with lenses that have three regions which correct for distance, intermediate (arm's length), and near vision.

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Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.

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Unite For Sight

Unite for Sight is a 501(c)(3) non-profit organization founded in 2000 by Jennifer Staple-Clark specializing in healthcare delivery to communities around the world.

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United Kingdom

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain,Usage is mixed with some organisations, including the and preferring to use Britain as shorthand for Great Britain is a sovereign country in western Europe.

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United States

The United States of America (USA), commonly known as the United States (U.S.) or America, is a federal republic composed of 50 states, a federal district, five major self-governing territories, and various possessions.

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Visual impairment

Visual impairment, also known as vision impairment or vision loss, is a decreased ability to see to a degree that causes problems not fixable by usual means, such as glasses.

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Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing fusion, which is distinct from lower temperature metal-joining techniques such as brazing and soldering, which do not melt the base metal.

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Welding helmet

A welding helmet is a type of headgear used when performing certain types of welding to protect the eyes, face and neck from flash burn, ultraviolet light, sparks, infrared light, and heat.

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Wienhausen Abbey

Wienhausen Abbey or Convent (Kloster Wienhausen) near Celle in Lower Saxony, Germany, is a community of Evangelical Lutheran women, which until the Reformation was a Cistercian Catholic nunnery.

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Wonder Woman

Wonder Woman is a fictional superhero appearing in American comic books published by DC Comics.

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X-ray vision

In science fiction stories or Superhero comics, X-ray vision is the ability to see through physical objects at the discretion of the holder of this superpower.

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3D film

A three-dimensional stereoscopic film (also known as three-dimensional sangu, 3D film or S3D film) is a motion picture that enhances the illusion of depth perception, hence adding a third dimension.

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3D printing

3D printing is any of various processes in which material is joined or solidified under computer control to create a three-dimensional object, with material being added together (such as liquid molecules or powder grains being fused together).

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60 Minutes

60 Minutes is an American newsmagazine television program broadcast on the CBS television network.

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[1] https://en.wikipedia.org/wiki/Glasses

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