To determine the potential for aerosolization of infectious virus present within the tear film during excimer laser photoablation of the cornea.
Cell monolayers infected with herpes simplex virus or adenovirus, simulating virus-infected corneas, were ablated with the 193-nm excimer laser.
Adjacent dishes containing nonin-fected cell monolayers were subsequently assayed for viral infection.
Viral spread to sentinel dishes occurred with both herpes simplex and adenovirus.
The titer of virus present in the infected cell monolayers influenced the likelihood of spread to adjacent dishes.
The presence of a vacuum aspiration system appeared to influence the direction of virus spread, with dishes located in the direction of the vacuum most likely to contain virus.
The potential for aerosolization of infectious virus exists with photoablation using a large-diameter excimer laser beam.
Our experi-mental design, however, does not prove that spread of infectious virus is likely to occur in the clinical setting.
Appropriate measures should be taken to reduce the possibility of the spread of virus from the patient to the surgeon, other medical staff, or other patients.
Mots-clés Pascal : Kératectomie photoréfractive, Excimère, Laser, Dispersion atmosphérique, Virus, Facteur risque, Exposition professionnelle, Chirurgien, Homme, Chirurgie, Médecine travail
Mots-clés Pascal anglais : Photorefractive keratectomy, Excimer, Laser, Atmospheric dispersion, Virus, Risk factor, Occupational exposure, Surgeon, Human, Surgery, Occupational medicine
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0229320
Code Inist : 002B25B. Création : 11/06/1997.