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Related Experiment Videos

Respirable particles in the excimer laser plume.

M J Taravella1, J Viega, F Luiszer

  • 1University of Colorado Health Science Center, Department of Ophthalmology, Denver, USA.

Journal of Cataract and Refractive Surgery
|April 20, 2001
PubMed
Summary

Excimer laser surgery creates respirable-size particles in the plume during corneal ablation. Further research is needed to assess health risks, but masks and plume evacuation are recommended for safety.

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Area of Science:

  • Ophthalmology
  • Laser Surgery
  • Particle Physics

Background:

  • Excimer lasers are widely used in ophthalmic surgery for corneal ablation.
  • Concerns exist regarding the potential health effects of surgical plumes generated during laser procedures.

Purpose of the Study:

  • To investigate the presence and characteristics of respirable-size particles within the plume generated by excimer laser ablation of corneal stroma.

Main Methods:

  • Corneal tissue was ablated using an excimer laser in an experimental setting.
  • Plume material was collected on filter paper connected to a smoke evacuator.
  • Particles were analyzed using electron microscopy and computer-based size measurements.

Main Results:

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  • Ninety-eight respirable-size particles were identified and measured.
  • The average particle diameter was 0.22 micrometers.
  • No particles were detected in control air samples.

    • Conclusions:

    • The plume from excimer laser corneal ablation contains respirable-size particles.
    • The health implications of inhaling these particles are currently unknown.
    • Recommendations include using masks and plume evacuation systems during surgery.