- 関
- photophobia、photosensory
WordNet
- a morbid fear of light
- very thin and insubstantial; "thin paper"; "light summer dresses"
- make lighter or brighter; "This lamp lightens the room a bit" (同)illume, illumine, light_up, illuminate
- a condition of spiritual awareness; divine illumination; "follow Gods light" (同)illumination
- having abundant light or illumination; "they played as long as it was light"; "as long as the lighting was good" (同)lighting
- (physics) electromagnetic radiation that can produce a visual sensation; "the light was filtered through a soft glass window" (同)visible_light, visible_radiation
- any device serving as a source of illumination; "he stopped the car and turned off the lights" (同)light_source
- the visual effect of illumination on objects or scenes as created in pictures; "he could paint the lightest light and the darkest dark" (同)lightness
- a particular perspective or aspect of a situation; "although he saw it in a different light, he still did not understand"
- a person regarded very fondly; "the light of my life"
- a visual warning signal; "they saw the light of the beacon"; "there was a light at every corner"
- an illuminated area; "he stepped into the light"
- mental understanding as an enlightening experience; "he finally saw the light"; "can you shed light on this problem?"
- public awareness; "it brought the scandal to light"
- (used of color) having a relatively small amount of coloring agent; "light blue"; "light colors such as pastels"; "a light-colored powder" (同)light-colored
- moving easily and quickly; nimble; "the dancer was light and graceful"; "a lightsome buoyant step"; "walked with a light tripping step" (同)lightsome, tripping
- having relatively few calories; "diet cola"; "light (or lite) beer"; "lite (or light) mayonnaise"; "a low-cal diet" (同)lite, low-cal, calorie-free
- less than the correct or legal or full amount often deliberately so; "a light pound"; "a scant cup of sugar"; "regularly gives short weight" (同)scant, short
- (of sleep) easily disturbed; "in a light doze"; "a light sleeper"; "a restless wakeful night" (同)wakeful
- (physics, chemistry) not having atomic weight greater than average; "light water is ordinary water"
- (used of soil) loose and large-grained in consistency; "light soil"
- characterized by or emitting light; "a room that is light when the shutters are open"; "the inside of the house was airy and light"
- demanding little effort; not burdensome; "light housework"; "light exercise"
- designed for ease of movement or to carry little weight; "light aircraft"; "a light truck"
- easily assimilated in the alimentary canal; not rich or heavily seasoned; "a light diet"
- having little importance; "losing his job was no light matter"
- intended primarily as entertainment; not serious or profound; "light verse"; "a light comedy"
- not great in degree or quantity or number; "a light sentence"; "a light accent"; "casualties were light"; "light snow was falling"; "light misty rain"; "light smoke from the chimney"
- of comparatively little physical weight or density; "a light load"; "magnesium is a light metal--having a specific gravity of 1.74 at 20 degrees C"
- of little intensity or power or force; "the light touch of her fingers"; "a light breeze"
- of the military or industry; using (or being) relatively small or light arms or equipment; "light infantry"; "light cavalry"; "light industry"; "light weapons"
- psychologically light; especially free from sadness or troubles; "a light heart"
- susceptibility to a pathogen (同)predisposition
- the ability to respond to affective changes in your interpersonal environment (同)sensitiveness
- the ability to respond to physical stimuli or to register small physical amounts or differences; "a galvanometer of extreme sensitivity"; "the sensitiveness of Mimosa leaves does not depend on a change of growth" (同)sensitiveness
- sensitivity to emotional feelings (of self and others) (同)sensitiveness
- (physiology) responsiveness to external stimuli; the faculty of sensation; "sensitivity to pain" (同)sensitiveness, sensibility
- apparatus for supplying artificial light effects for the stage or a film
- the craft of providing artificial light; "an interior decorator must understand lighting"
- set afire or burning; "the lighted candles"; "a lighted cigarette"; "a lit firecracker" (同)lit
PrepTutorEJDIC
- 〈U〉『光,光線』;明るさ / 〈U〉夜明け;日中;日光 / 〈C〉『明かり』(太陽・灯火など光を出すもの) / 〈U〉《時にa~》光輝(brightness),(目などの)輝き / 〈C〉(点火するための)火,火花 / 〈C〉明かり採り,採光窓 / 〈C〉《通例単数形で》(絵などの)明るい部分 / 〈U〉(…についての)知識,情報,理解《+『on』+『名』》 / 〈C〉(ものを見る)観点,見地;相 / 〈C〉この世に光を与える人;指導的な人物 / …‘に'『火をつける』《+『up』+『名』+『名』+『up』》 / …‘に'『明かりをつける』,‘を'照らす《+『up』+『名,』+『名』+『up』》 / 〈人〉‘を'明かりをつけて案内する / 〈表情など〉‘を'明るくする《+『up』+『名,』+『名』+『up』》 / 〈物が〉火がつく,点火する;明かりがつく《+『up』》 / 明るくなる,晴れ晴れする《+『up』》 / 『明るい』 / (色が)『薄い』
- (重量が)『軽い』 / (いろいろな事について,その程座・量が)軽い,小さい / 『軽快な』 / 軽装の / 肩のこらない;気軽な / 手軽な,骨の折れなし / (食べ物が)消化のよい,もたれない / ふらふらする,目まいのする / アルコール分の少ない / (パンなどが)ふんわりした / (重量が)軽く / (程度が)軽く,容易に;軽装で
- (車・馬などから)降りる《+『from』+『名』》(alight) / (木などに)〈鳥などが〉止まる《+『on』(『upon』)+『名』》 / (…に)〈打撃・運などが〉突然ふりかかる《+『on』(『upon』)+『名』》
- 敏感,(生理的な)感受性 / 感度,度光度
- 照明,点火 / 照明方法(装置)
- (羊・豚などの)肺臓
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2012/12/25 18:57:07」(JST)
[Wiki en表示]
Light sensitivity or photosensitivity is an increase in the reactivity of the skin to sunlight. Apart from vision, human beings have many physiological and psychological responses to light. In rare individuals an atypical response may result in serious discomfort, disease, or injury. Some drugs have a photosensitizing effect. Properties of natural or artificial light that may abnormally affect people include:
- Timing of light (upset of normal circadian rhythms, seasonal affective disorder, sleep disorders)
- Intensity of light (photophobia, sunburn, skin cancer)
- Wavelength of light (in lupus, urticaria)
- Rapid flickers in intensity of light may trigger or aggravate Photosensitive epilepsy or migraine headaches.
Other effects may include vertigo, or chronic fatigue syndrome.
Controlled application of artificial light can be used in a program of Light therapy to treat some disorders.
Contents
- 1 Sunlight
- 2 Fluorescent lamps
- 3 See also
- 4 References
|
Sunlight
Main article: Health effects of sun exposure
Sunlight, especially its ultraviolet radiation component, can cause increased or additional types of damage in predisposed individuals, such as those taking certain phototoxic drugs, or those with certain conditions associated with photosensitivity, including:
- Psoriasis[1]
- Atopic eczema[1]
- Erythema multiforme[1]
- Seborrhoeic dermatitis[1]
- Autoimmune bullous diseases (immunobullous diseases)[1]
- Mycosis fungoides[1]
- Smith–Lemli–Opitz syndrome[1]
- Porphyria cutanea tarda
Also, many conditions are aggravated by strong light, including:
- Systemic lupus erythematosus[1]
- Sjögren’s syndrome[1]
- Sinear Usher syndrome[1]
- Rosacea[1]
- Dermatomyositis[1]
- Darier’s disease[1]
- Kindler-Weary syndrome[1]
Fluorescent lamps
Further information: Fluorescent lamps and health
The Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR) in 2008 reviewed[2] the connections between light from fluorescent lamps, especially from compact fluorescent lamp, and numerous human diseases, with results including:
- The inner-ear condition Ménière's disease can be aggravated by flicker. Sufferers of vertigo are recommended to not use fluorescent lights.
- Polymorphous light eruption is a condition affecting the skin thought to be caused by an adverse reaction to ultraviolet light. Its prevalence across Europe is 10-20% of the population. Artificial light sources may provoke the condition, and compact fluorescent light have been shown to produce an eruption.
- Chronic actinic dermatitis is a condition where a subject's skin becomes inflamed due to a reaction to sunlight or artificial light. Its prevalence in Scotland is 16.5 per 100,000 population. There is evidence that compact fluorescent light worsen the condition.
- The autoimmune disease lupus is exacerbated by compact fluorescent light.
- There is evidence that actinic prurigo is worsened by compact fluorescent light. This disease affects 3.3% of the general population.
- 3.1% of the population suffer from solar urticaria, a skin disorder affected by ultraviolet light. Some patients are directly affected by compact fluorescent light.
- Phytophotodermatitis may be aggravated by the additional levels of ultraviolet light emitted by compact fluorescent light.
- Patients undergoing photodynamic therapy are at additional risk of adverse photosensitive reactions caused by compact fluorescent light.
- One cause of cataracts is exposure to ultraviolet light. Provided the level of UV emission from lamps is within safe limits, and the lamp a sufficient distance away from the individual, there should be no increased risk of developing cataracts.
- Photophobia is a symptom of excessive sensitivity to light which affects 5 to 20% of the population. No studies have been conducted into the effect of compact fluorescent light on sufferers of photophobia but there is the possibility for compact fluorescent light to affect sufferers.
- There is evidence that flicker can cause seizures in patients with photosensitive epilepsy, but there has yet to be any evidence to date attributing seizures to compact fluorescent lamps.
- Self-reporting suggests fluorescent lamps aggravate dyslexia.
See also
- Asthenopia (eye strain)
- Photophobia
- Phototoxicity
- Photosensitivity
- Photosensitivity in animals
- Photodermatitis
References
- ^ a b c d e f g h i j k l m n European Guidelines for Photodermatoses > 2 Photoaggravated Disorders at European Dermatology Forum
- ^ "Light Sensitivity, Scientific Committee on Emerging and Newly Identified Health Risks" (PDF). Director-General for Health and Consumers, European Commission. 2008. pp. 26–27. http://ec.europa.eu/health/ph_risk/committees/04_scenihr/docs/scenihr_o_019.pdf. Retrieved 2009-08-31.
UpToDate Contents
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English Journal
- 'Traffic light' immunochromatographic test based on multicolor quantum dots for the simultaneous detection of several antibiotics in milk.
- Taranova NA1, Berlina AN1, Zherdev AV1, Dzantiev BB2.
- Biosensors & bioelectronics.Biosens Bioelectron.2015 Jan 15;63:255-61. doi: 10.1016/j.bios.2014.07.049. Epub 2014 Jul 25.
- An immunochromatographic test was developed for the simultaneous detection of several compounds in a complex sample matrix. The system was designed in a 'traffic light' format comprising three lines of different colors on a test strip, thereby providing an easy tool with which to identify an analyte
- PMID 25104435
- Development of a rapid, simple and sensitive HPLC-FLD method for determination of rhodamine B in chili-containing products.
- Qi P1, Lin Z2, Li J2, Wang C2, Meng W2, Hong H2, Zhang X3.
- Food chemistry.Food Chem.2014 Dec 1;164:98-103. doi: 10.1016/j.foodchem.2014.05.036. Epub 2014 May 17.
- In this work, a simple, rapid and sensitive analytical method for the determination of rhodamine B in chili-containing foodstuffs is described. The dye is extracted from samples with methanol and analysed without further cleanup procedure by high-performance liquid chromatography (HPLC) coupled to f
- PMID 24996311
- Inactivation of avirulent pgm(+) and Δpgm Yersinia pestis by ultraviolet light (UV-C).
- Paoli GC1, Sommers CH2, Scullen OJ2, Wijey C3.
- Food microbiology.Food Microbiol.2014 Dec;44:168-72. doi: 10.1016/j.fm.2014.06.002. Epub 2014 Jun 17.
- Yersinia pestis is the causative agent of bubonic plague. Though not considered a foodborne pathogen, Y. pestis can survive, and even grow, in some foods, and the foodborne route of transmission is not without precedent. As such, concerns exist over the possible intentional contamination of foods w
- PMID 25084659
Japanese Journal
- Significant relaxation of residual negative carrier in polar Alq
- Metal Nanostructures Fabricated by the Difference of Interfacial Energy at a Dielectric/Metal Interface
- Characteristics of Recent Severe Haze Events in Korea and Possible Inadvertent Weather Modification
Related Links
- Learn about diseases and conditions that cause photophobia (sensitivity to light). Associated symptoms and signs include nausea and headache. Pinpoint your symptoms and signs with MedicineNet's Symptom Checker. ... Drug ...
- Are you becoming sensitive to light? Learn what may be causing your photophobia or light sensitivity and how you can treat the condition. ... Photophobia Treatment The best treatment for light sensitivity is to address the underlying ...
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★リンクテーブル★
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- 関
- light sensitivity、photophobic
鑑別
- DIF 354
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- 英
- light sensitivity、photosensory
- 関
- 羞明
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- 関
- light sensitivity
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- 関
- bright、photic、photoradiation、point of view、ray、viewpoint、visible light、visible radiation
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- 関
- responsivity、sensibility、sensitive、sensitively、specificity、susceptibility、susceptible
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- 関
- illumination