色素散乱症候群
WordNet
- acquire pigment; become colored or imbued
- any substance whose presence in plant or animal tissues produces a characteristic color
- color or dye with a pigment; "pigment a photograph"
- dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)
- the act of dispersing or diffusing something; "the dispersion of the troops"; "the diffusion of knowledge" (同)dispersal, dissemination, diffusion
- spreading widely or driving off (同)scattering
- a pattern of symptoms indicative of some disease
- a complex of concurrent things; "every word has a syndrome of meanings"
PrepTutorEJDIC
- 〈U〉〈C〉(おもに紛末の)絵の具,顔料 / 〈U〉色素
- (また『dispersal』)分散[状態],散乱,消散 / (光の)分散;(微粒子の)分散
- (疾患の徴候となる一群の)症徴候,症候群 / (事件・社会的状態などのパターンを示す)徴候形態
- =Diaspora
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2016/01/14 15:23:56」(JST)
[Wiki en表示]
Pigment dispersion syndrome (PDS) is an affliction of the eye that can lead to a form of glaucoma known as pigmentary glaucoma. It takes place when pigment cells slough off from the back of the iris and float around in the aqueous humor. Over time, these pigment cells can accumulate in the anterior chamber in such a way that it can begin to clog the trabecular meshwork (the major site of aqueous humour drainage), which can in turn prevent the aqueous humour from draining and therefore increases the pressure inside the eye. With PDS, the intra ocular pressure tends to spike at times and then can return to normal. Exercise has been shown to contribute to spikes in pressure as well. When the pressure is great enough to cause damage to the optic nerve, this is called pigmentary glaucoma. As with all types of glaucoma, when damage happens to the optic nerve fibers, the vision loss that occurs is irreversible and painless.
This condition is rare, but occurs most often in Caucasians, particularly men, and the age of onset is relatively low: mid 20s to 40s. As the crystalline lens hardens with age, the lens zonules pull away from the iris and the syndrome lessens and stops. Most sufferers are nearsighted.
There is no cure yet, but pigmentary glaucoma can be managed with eye drops or treated with simple surgeries. One of the surgeries is the YAG laser procedure in which a laser is used to break up the pigment clogs, and reduce pressure. If caught early and treated, chances of glaucoma are greatly reduced. Sufferers are often advised not to engage in high-impact sports such as long-distance running or martial arts, as strong impacts can cause more pigment cells to slough off.
References
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External links
- Glaucoma Research Foundation
- Krukenberg's Spindle is a website designed specifically for people that have been diagnosed with Krukenberg's Spindles and/or Pigment Dispersion Syndrome
- The New York Eye and Ear Infirmary
UpToDate Contents
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English Journal
- Relationship of central corneal thickness to postural IOP changes in patients with and without glaucoma in southern India.
- Moster SJ, Fakhraie G, Venketesh R, Moster ML, Zhao Y, Moster MR.SourceAravind Eye Hospital, Pondicherry, Tamil Nadu, India.
- International ophthalmology.Int Ophthalmol.2012 Aug;32(4):307-11. Epub 2012 May 11.
- To evaluate the relationship of central corneal thickness to the changes in intraocular pressure (IOP) in the sitting and supine position. Observational case-control study. The study group included Primary open-angle and chronic angle closure glaucoma patients. The control group consisted of patient
- PMID 22576109
- Association of polymorphisms of endothelial nitric oxide synthase (eNOS) gene with the risk of primary open angle glaucoma in a Brazilian population.
- Magalhães da Silva T, Rocha AV, Lacchini R, Marques CR, Silva ES, Tanus-Santos JE, Rios-Santos F.SourceUniversidade Estadual de Santa Cruz, Department of Health, Laboratory of Pharmacogenomic and Genetic Epidemiology (LAFEM), Ilhéus, Bahia, 45662-900, Brazil; Universidade Estadual do Sudoeste da Bahia, Department of Biology, Jequié, Bahia, 45026-190, Brazil.
- Gene.Gene.2012 Jul 10;502(2):142-6. Epub 2012 Apr 24.
- The present study aimed to investigate the association of endothelial nitric oxide synthase (eNOS) gene polymorphisms with primary open angle glaucoma (POAG). We conducted a case-control study that included 90 patients with POAG and 127 healthy controls whose blood samples were genotyped for the fun
- PMID 22561696
Japanese Journal
- Clinical Signs and Characteristics of Pigmentary Glaucoma in Chinese
- Piggyback Intraocular Lens 術後に高眼圧を生じた2症例
- IOL & RS : Japanese journal of cataract and refractive surgery : 日本眼内レンズ屈折手術学会誌 18(1), 61-66, 2004-03-01
- NAID 10013439480
- 日本眼科紀要 = Folia ophthalmologica Japonica 55(2), 135-139, 2004-02-28
- NAID 10013518653
Related Links
- Pigment dispersion syndrome is a condition in which increased amounts of pigment, the material that gives your iris its color, circulate in other parts of the eye. The tiny granules of pigment can clog your eye’s drainage system ...
- Pigment Dispersion Syndrome. Pigment dispersion syndrome (PDS) is a disorder of the eye in which the pigment granules responsible for eye color slough off of the back of the iris and collect in the eye’s fluid called the ...
Related Pictures
★リンクテーブル★
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- 英
- pigment dispersion syndrome
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- 関
- discrete、dispersal、disperse、disperse system、dispersed system、intersperse、variance
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- 関
- dye、dye stuff
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- 関
- pigmentary
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