Wood's lamp


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Wood's lamp

Etymology: Robert W. Wood, American physicist, 1868-1955; AS, glaes
an illuminating device with a nickel oxide filter that holds back all light except for a few violet rays of the visible spectrum and ultraviolet wavelengths of about 365 nm. It is used extensively to help diagnose fungus infections of the scalp and erythrasma. The light causes hairs infected with a fungus such as Tinea capitis to become brilliantly fluorescent. Also called black light.
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Wood's lamp

lamp

[Gr. lampein, to shine]
A device for producing and applying light, heat, radiation, and various forms of radiant energy for the treatment of disease, resolution of impairments, or palliation of pain.

infrared lamp

A lamp that develops a high temperature, emitting infrared rays; a heat lamp. The rays penetrate only a short distance (5 to 10 mm) into the skin. Its principal effect is to cause heating of the skin.
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SLIT LAMP EXAMINATION
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SLIT LAMP EXAMINATION

slit lamp

A lamp so constructed that an intense light is emitted through a slit; used for examination of the eye. See: illustration
illustration

sun lamp

Ultraviolet lamp.

ultraviolet lamp

A lamp that produces light with a wavelength in the range of 180 to 400 nm. It is used to treat certain skin conditions such as psoriasis or T-cell lymphoma, to promote wound healing by destroying bacteria, and to tan the skin. Ultraviolet lamps produce light within specific ranges: ultraviolet-A (UV-A) lamps generate light having a wavelength of 320 to 400 nm; ultraviolet-B (UV-B) produces light in the range of 290 to 320 nm; ultraviolet-C (UV-C) has a wavelength of 180 to 290 nm. Synonym: sun lamp

CAUTION!

Patients and operators must wear ultraviolet-resistant goggles during treatment. Overexposure to ultraviolet light produces burning and blistering of the skin and may predispose patients to skin cancers.

Wood's lamp

Wood's filter.