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*  Far-sightedness
Refractive lens exchange (RLE) A variation of cataract surgery where the natural crystalline lens is replaced with an ... Management can occur with eyeglasses, contact lenses, or surgery. Glasses are easiest while contact lenses can provide a wider ... The simplest form of treatment for far-sightedness is the use of corrective lenses, eyeglasses or contact lenses. Eyeglasses ... Often it occurs when the eyeball is too short, or the lens or cornea is misshapen. Risk factors include a family history of the ...
*  Cataract surgery
... is the removal of the natural lens of the eye (also called "crystalline lens") that has developed an ... The multifocal intraocular lens is one of the newest types of such lenses. They are often referred to as "premium" lenses ... The intraocular lens was designed with a hinge similar to the mechanics of the eye's natural lens. The intraocular lenses used ... After lens removal, an artificial plastic lens (an intraocular lens implant) can be placed in either the anterior chamber or ...
*  Alpha-enolase
... a lens crystalline; a heat shock protein; and a binding partner of cytoskeletal and chromatin structures to aid in ... Alpha-enolase, in addition, functions as a structural lens protein (tau-crystallin) in the monomeric form. Alternative splicing ...
*  Lens (anatomy)
"equator of the crystalline lens - definition of equator of the crystalline lens in the Medical dictionary - by the Free Online ... the lens capsule, the lens epithelium, and the lens fibers. The lens capsule forms the outermost layer of the lens and the lens ... The lens epithelium, located in the anterior portion of the lens between the lens capsule and the lens fibers, is a simple ... The lens is also known as the aquula (Latin, a little stream, dim. of aqua, water) or crystalline lens. In humans, the ...
*  Carbon-14
"Radiocarbon Dating of the Human Eye Lens Crystallines Reveal Proteins without Carbon Turnover throughout Life". PLoS ONE. 3 (1 ... or the carbon-14 concentration in the lens of the eye. Carbon-14 is produced in coolant at boiling water reactors (BWRs) and ...
*  Desquamation
"Radiocarbon Dating of the Human Eye Lens Crystallines Reveal Proteins without Carbon Turnover throughout Life". PLoS ONE. 3 (1 ... The anatomy of the human eye makes desquamation of the lens impossible. Desquamative gingivitis Pityriasis-flaking of the skin ...
*  Karla Zadnik
Longitudinal evidence of crystalline lens thinning in children. Investigative ophthalmology & visual science. 1995;36:1581-7. ... A video technique for phakometry of the human crystalline lens. Investigative ophthalmology & visual science. 1992;33:1771-82. ... Optical and structural development of the crystalline lens in childhood. Investigative ophthalmology & visual science. 1998;39: ... 2002;21:671-9. Walline JJ, Jones LA, Mutti DO, Zadnik K. A randomized trial of the effects of rigid contact lenses on myopia ...
*  Russell Fernald
Fernald, Russell D.; Wright, Stephen E. (1983). "Maintenance of optical quality during crystalline lens growth". Nature. 301 ( ... circadian renewal of photoreceptor opsins and mechanisms of crystalline lens focus (Rank Prize); 2) In social control of ... "Refractive index distribution and spherical aberration in the crystalline lens of the African cichlid fish Haplochromis burtoni ... Fernald next asked how fish lens quality was preserved during growth, identifying specific mechanisms, sharing the Rank Prize ...
*  Aniseikonia
Aphakic patients do not have a crystalline lens. The crystalline lens is often removed because of opacities called cataracts. ... Today, this is rarely a problem because when the lens is removed in cataract surgery, an intraocular lens, or IOL is left in ... corrective lenses). The optical magnification properties of spectacle lenses can be adjusted by changing parameters like the ... Contact lenses may also provide a better optical magnification to reduce the difference in image size. The difference in ...
*  Intraocular lens
Phakia is the presence of the natural crystalline lenses. Aphakia is the absence of the natural crystalline lens. The aphakic ... This type of IOL is also called phakic intraocular lens (PIOL), and the crystalline lens is not removed. Phakic IOL appear to ... During CLEAR, the crystalline lens is extracted and an IOL replaces it in a process that is very similar to cataract surgery: ... The difference is that they are placed in an eye that retains the natural human crystalline lens. As with aphakic eyes, toric ...
*  Sunglasses
"The effects of protective eyewear on hair and crystalline lens transparency". Dev Ophthalmol. 35: 93-103. PMID 12061282. " ... Dark lenses do not automatically filter out more harmful UV radiation and blue light than light lenses. Inadequate dark lenses ... resulting in dark or light lenses. The lens color is not a guarantee either. Lenses of various colors can offer sufficient (or ... Lenses can be easily removed and swapped for a different lens, usually of a different color. The purpose is to allow the wearer ...
*  Myopia in animals
Nuclear sclerosis of the crystalline lens was noticed in older dogs. Experiments into newborn macaque monkeys have revealed ...
*  Ophthalmology in medieval Islam
One of Hunain ibn Ishaq's innovations was to describe the crystalline lens as being located in the exact center of the eye. The ... the crystalline lens in the center of the eye". Clinical Ophthalmology. 2016 (10): 649-662. Finger, Stanley (1994), Origins of ... led to much discussion in 16th century Europe over whether the principal organ of sight is the traditional Galenic crystalline ...
*  Hunayn ibn Ishaq
Hunain repeatedly emphasized that he believed the crystalline lens to be in the center of the eye. Hunain may have been the ... The idea of the central crystalline lens was widely believed from Hunain's period through the late 1500s. He discusses the ... the crystalline lens in the center of the eye". Clinical Ophthalmology. 2016 (10): 649-662. Wright. Catalogue, pp. 1190-1191, ...
*  Adult development
Glasser, A., & Campbell, M. C. (1998). Presbyopia and the optical changes in the human crystalline lens with age. Vision ...
*  Book of the Ten Treatises of the Eye
Hunayn repeatedly emphasized that he believed the crystalline lens to be in the exact center of the eye. Hunayn may have been ... The idea of the central crystalline lens was widely believed from Hunayn's period through the late 1500s.He describes the ... the crystalline lens in the center of the eye". Clinical Ophthalmology. 2016 (10): 649-662. Eastwood pp. 3-12 Eastwood pp. 17- ... The lens, described as white, transparent, and luminous have a composition which lends itself to quickly receive colors. As ...
*  Aulus Cornelius Celsus
Leffler CT, Hadi TM, Udupa A, Schwartz SG, Schwartz D (2016). "A medieval fallacy: the crystalline lens in the center of the ... During the twentieth century, many historians claimed that Celsus believed that the crystalline lens is in the exact center of ... In fact, Celsus made no specific statement about the position of the crystalline lens, and his Graeco-Roman contemporaries did ... understand that the lens is located to the front. Hippocrates used the Greek word carcinos, meaning crab or crayfish, to refer ...
*  Ophthalmology
Hunain ibn Ishaq, and others beginning with the medieval Arabic period, taught that the crystalline lens is in the exact center ... ISBN 0-226-48233-2. Leffler CT, Hadi TM, Udupa A, Schwartz SG, Schwartz D (2016). "A medieval fallacy: the crystalline lens in ... Rufus was the first to recognise a two-chambered eye, with one chamber from cornea to lens (filled with water), the other from ... The two chambers were seen to hold the same fluid, as well as the lens being attached to the choroid. Galen continued the ...
*  Advanced glycation end-product
They form photosensitizers in the crystalline lens, which has implications for cataract development. Reduced muscle function is ... Fuentealba D, Friguet B, Silva E. Advanced glycation endproducts induce photocrosslinking and oxidation of bovine lens proteins ...
*  Galactosemic cataract
A cataract is an opacity that develops in the crystalline lens of the eye. The word cataract literally means, "curtain of water ... For instance, when rabbit lenses are placed in high-galactose mediums, a nearly 40% reduction in lens amino acid levels is ... As it turns out, the lens is a favorable site for galactose accumulation. The lens phosphorylates galactose at a relatively ... Thus, the sugar alcohol idly begins to accumulate in the lens. As galactitol concentration increases in the lens, a hypertonic ...
*  Ocular straylight
Aging of the crystalline lens of the human eye causes straylight to become worse. Lens extraction and artificial lens ... Contact lenses. Vos JJ. "Disability glare - a state of the art report". Commission International de l'Eclairage Journal. 1984;3 ... "Straylight effects with aging and lens extraction". Am J Ophthalmol. 2007;144:358-363 Van der Meulen IJ et al. "Quality of ... "Straylight measurement in contact lens wear". Cornea 2010;29:516-522. ...
*  A-scan ultrasound biometry
... and the crystalline lens 20 diopters. When a cataract is removed, the lens is replaced by an artificial lens implant. By ... The most common use of the A-scan is to determine eye length for calculation of intraocular lens power. Briefly, the total ... a simple formula can be used to calculate the power of the intraocular lens needed. There are several different formulas that ...
*  Ectopia lentis
... is a displacement or malposition of the eye's crystalline lens from its normal location. A partial dislocation ... of a lens is termed lens subluxation or subluxated lens; a complete dislocation of a lens is termed lens luxation or luxated ... Anterior lens luxation is considered to be an ophthalmological emergency. With posterior lens luxation, the lens falls back ... Lens subluxation is also seen in dogs and is characterized by a partial displacement of the lens. It can be recognized by ...
*  Neuroprosthetics
Blindness can result from damage to the optical pathway (cornea, aqueous humor, crystalline lens, and vitreous). This can ...
*  Hyperlysinemia
... is associated with ectopia lentis (a displacement or malposition of the eye's crystalline lens) in humans. ...
*  Differential interference contrast microscopy
Wollaston prisms are a type of prism made of two layers of a crystalline substance, such as quartz, which, due to the variation ... 5. The rays travel through the objective lens and are focused for the second Nomarski-modified Wollaston prism. 6. The second ... Etched crystalline features gain a particularly striking appearance under DIC. Image quality, when used under suitable ...
*  Dan Reinstein
Measurement of the crystalline lens radius with Artemis very high frequency ultrasound biomicroscopy for Implantable Collamer ... Phakic intraocular lenses. Survey of Ophthalmology. 2005 Nov-Dec;50(6):549-587. Carlo F. Lovisolo, Dan Z. Reinstein 112. A new ... Contact Lens Association of Ophthalmologists Journal. 1995 Oct;21(4):268-272. Ioannis M. Aslanides, Dan Z. Reinstein, Ronald H ... Contact Lens Association of Ophthalmologists Journal. 1994 Jul;20(3):198-203. Dan Z. Reinstein, Ioannis M. Aslanides, Ronald H ...