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  1. Color vision deficits and laser eyewear protection for soft tissue laser applications.

    Article - En anglais


    Laser safety considerations require urologists to wear laser eye protection.

    Laser eye protection devices block transmittance of specific light wavelengths and may distort color perception.

    We tested whether urologists risk color confusion when wearing laser eye protection devices for laser soft tissue applications.

    Materials and Methods 

    Subjects were tested with the Farnsworth-Munsell 100-Hue Test without (controls) and with laser eye protection devices for carbon dioxide, potassium titanyl phosphate (KTP), neodymium (Nd) : YAG and holmium : YAG lasers.

    Color deficits were characterized by error scores, polar graphs, confusion angles, confusion index, scatter index and color axes.

    Laser eye protection device spectral transmittance was tested with spectrophotometry.


    Mean total error scores plus or minus standard deviation were 13 ± 5 for controls, and 44 ± 31 for carbon dioxide, 273 ± 26 for KTP, 22 ± 6 for Nd : YAG and 14 ± 8 for holmium : YAG devices (p<0.001).

    The KTP laser eye protection polar graphs, and confusion and scatter indexes revealed moderate blue-yellow and red-green color confusion.

    Color axes indicated no significant deficits for controls, or carbon dioxide, Nd : YAG or holmium : YAG laser eye protection in any subject compared to blue-yellow color vision deficits in 8 of 8 tested with KTP laser eye protection (p<0.001). (...)

    Mots-clés Pascal : Chirurgie, Photothérapie, Laser, Effet biologique, Protection rayonnement, Rayonnement monochromatique, Pratique professionnelle, Erreur estimation, Equipement, Etude comparative, Homme, Médecine travail, Oeil pathologie

    Mots-clés Pascal anglais : Surgery, Phototherapy, Laser, Biological effect, Radiation protection, Monochromatic radiation, Professional practice, Estimation error, Equipment, Comparative study, Human, Occupational medicine, Eye disease

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 99-0131214

    Code Inist : 002B30B02A. Création : 16/11/1999.