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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
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.
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:
- 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.