illumination (redirected from illuminated)

illumination /il·lu·mi·na·tion/ (ĭ-loo″mĭ-na´shun)

1. the lighting up of a part, organ, or object for inspection.

2. the luminous flux per unit area of a given surface; SI unit, lux. Symbol .

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darkfield illumination , dark-ground illumination the casting of peripheral light rays upon a microscopical object from the side, the center rays being blocked out; the object appears bright on a dark background.

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illumination

[ilo̅o̅′minā′shən]

Etymology: L, illuminare, to make light

the lighting up of a part of the body or of an object under a microscope for the purpose of examination. illuminate, v.

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illumination [ĭ-loo″mĭ-na´shun]

1. the lighting up of a part, cavity, organ, or object for inspection.

2. the luminous flux per unit area of a given surface; SI unit, lux. Symbol E.

darkfield illumination (dark-ground illumination) the casting of peripheral light rays upon a microscopical object from the side, the center rays being blocked out; the object appears bright on a dark background.

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illumination

the lighting up of a part, cavity, organ or object for inspection.

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darkfield illumination, dark-ground illumination

the casting of peripheral light rays upon a microscopical object from the side, the center rays being blocked out; the object appears bright on a dark background.

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illumination

1. The action of brightening an object with light. 2. The science of the application of lighting. 3. Synonym for illuminance.
diffuse illumination In slit-lamp examination, it is the illumination obtained with a wide slit and an out of focus beam or with a diffuser, thus providing an overall view of the structures of the eye.
direct illumination In slit-lamp examination, the slit beam and the microscope are both focused sharply on the structure to be observed. Syn. focal illumination.
focal illumination See direct illumination.
indirect illumination In slit-lamp examination, the slit beam is focused on a structure located adjacent to the structure to be observed.
inverse square law of illumination See inverse square law of illumination.
oscillation illumination In slit-lamp examination, it is a technique in which the beam of light is oscillated to provide alternative direct and indirect illumination. It sometimes allows one to see slight changes more easily which otherwise would remain unnoticed under sustained illumination of either kind.
retinal illumination See retinal illuminance.
retro-illumination In slit-lamp examination, it is a method of illuminating a structure by using the light that is reflected by the iris or an opaque or senescent lens. This method is closely related to indirect illumination and often in corneal examination part of the cornea will simultaneously be under retro- and indirect illumination. Syn. transillumination. See central corneal clouding; oedema.
sclerotic scatter illumination In slit-lamp examination, it is a method in which the beam of light is focused on the sclera near the limbus and the cornea remains uniformly dark in the absence of an opacity. However, an opacity in the cornea becomes easily visible as it scatters light. See central corneal clouding; oedema.
specular reflection illumination In slit-lamp examination, it is a method in which the beam of light and the microscope are placed at equal angles from the normal to the corneal or lens surface to be viewed. This is a method for examining the quality of a surface. This method is particularly useful to observe the corneal endothelium. See endothelial blebs; cornea guttata; shagreen.

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Patient discussion about illumination.

Q. what can cause a migrane other than light, noise, andno sleep? Well its been 4 days n 3 nights that I have it n it dont go away it was bad at first but then my right ear hurted as well as my right upper wisdomteeth It seems to be in only the right side and its been movin down towards my neck... Please if u have any info on wha the fuck is goin on with me let me know asap...

A. A migraine attack can be triggered also by caffeine consumption, alcohol consumption, certain medications, allergic reactions, physical or emotional stress, smoking, skipping meals, menstrual cycle fluctuations, menopause, and certain food containing-
1) tyramine- red wine, aged cheese, smoked fish, chicken liver, figs and some beans.
2) nitrates - like hot dogs, bacon and salami.

Q. My husband has psoriasis and the dermatologist suggested that he try the uv light treatment.Anyone try it. some of the side effects may be skin cancer and melanoma's. If so can you please let me know if it actually did help or if not. Thanks a million.

A. uv light treatment procedure is relatively new mod of treatment so here is difficult to build an opinion about it.
Actually there are two main type of treatment relating uv light are in use one is uvb treatment and other one is PUVA (uva light based).
As uvb is the most prominent factor for skin cancer so this treatment is more risky. While PUVA is quite effective treatment and has less side effects.
http://www.vitiligoguide.com/psoriasis/

Q. Could I be pregnant and my body just doesn't know it yet? It is a very light period what do you think? This is Coreyeve ; I got married 5 months ago. Yesterday, I took a pregnancy test and it came positive. Then I had my period later that evening. Could I be pregnant and my body just doesn't know it yet? It is a very light period what do you think?

A. Corey, that's quite tricky.. actually, there are some possibilities of what happened to you:
- the pregnancy test you did was wrong (was not accurate)
- or you were actually pregnant, but then you had a very early miscarriage

So, I will suggest next time, you can check whether you're pregnant or not after you miss your period, then you can check it by using home pregnancy test or even pregnancy pack test.
If you're a working woman, it is advisable to balance your activities, since the first weeks of pregnancy is quite important (that is the time when the embryo is implanted into the mother's uterus)

Good luck, and stay healthy always..