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Biohazards of ultraviolet, visible and infrared radiation.

Abstract

It has long been recognized that optical radiation may be harmful to the eye; however, the precise exposure conditions, wavelengths and irradiation levels required to injure the cornea, lens and retina have not always been well understood. Ultraviolet (UV) radiation levels that elicit UV photokeratoconjunctivitis are dramatically dependent on wavelength. The damage is the result of a photochemical effect. Lenticular opacities produced in laboratory animals appear to be produced only within a narrow waveband near 300 nm by UV radiation or by extremely high-exposure doses of infrared radiation. Wavelengths between 400 and 1,400 nm may reach the retina in the normal eye, and at sufficient irradiance levels can cause a retinal "burn." Short-wavelength light (blue-violet) can cause a retinal photochemical burn, whereas longer wavelengths and short pulses of light appear to be capable of injuring the retina by a thermal damage mechanism. It has only recently been appreciated that the geometry of the light source and the direction of exposure (e.g., overhead v direct) play important roles in determining the likelihood of ocular injury.

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    Source

    MeSH

    Eye
    Humans
    Infrared Rays
    Lasers
    Light
    Skin
    Ultraviolet Rays

    Pub Type(s)

    Journal Article

    Language

    eng

    PubMed ID

    6842311

    Citation

    Sliney, D H.. "Biohazards of Ultraviolet, Visible and Infrared Radiation." Journal of Occupational Medicine. : Official Publication of the Industrial Medical Association, vol. 25, no. 3, 1983, pp. 203-10.
    Sliney DH. Biohazards of ultraviolet, visible and infrared radiation. J Occup Med. 1983;25(3):203-10.
    Sliney, D. H. (1983). Biohazards of ultraviolet, visible and infrared radiation. Journal of Occupational Medicine. : Official Publication of the Industrial Medical Association, 25(3), pp. 203-10.
    Sliney DH. Biohazards of Ultraviolet, Visible and Infrared Radiation. J Occup Med. 1983;25(3):203-10. PubMed PMID: 6842311.
    * Article titles in AMA citation format should be in sentence-case
    TY - JOUR T1 - Biohazards of ultraviolet, visible and infrared radiation. A1 - Sliney,D H, PY - 1983/3/1/pubmed PY - 1983/3/1/medline PY - 1983/3/1/entrez SP - 203 EP - 10 JF - Journal of occupational medicine. : official publication of the Industrial Medical Association JO - J Occup Med VL - 25 IS - 3 N2 - It has long been recognized that optical radiation may be harmful to the eye; however, the precise exposure conditions, wavelengths and irradiation levels required to injure the cornea, lens and retina have not always been well understood. Ultraviolet (UV) radiation levels that elicit UV photokeratoconjunctivitis are dramatically dependent on wavelength. The damage is the result of a photochemical effect. Lenticular opacities produced in laboratory animals appear to be produced only within a narrow waveband near 300 nm by UV radiation or by extremely high-exposure doses of infrared radiation. Wavelengths between 400 and 1,400 nm may reach the retina in the normal eye, and at sufficient irradiance levels can cause a retinal "burn." Short-wavelength light (blue-violet) can cause a retinal photochemical burn, whereas longer wavelengths and short pulses of light appear to be capable of injuring the retina by a thermal damage mechanism. It has only recently been appreciated that the geometry of the light source and the direction of exposure (e.g., overhead v direct) play important roles in determining the likelihood of ocular injury. SN - 0096-1736 UR - https://www.unboundmedicine.com/medline/citation/6842311/Biohazards_of_ultraviolet_visible_and_infrared_radiation_ L2 - http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=6842311.ui DB - PRIME DP - Unbound Medicine ER -