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New refractive method for laser thermal keratoplasty with the Co:MgF2 laser
1Eye Center, Illinois Masonic Medical Center, Chicago.
Journal of Cataract and Refractive Surgery
|September 1, 1990
Summary
Laser thermal keratoplasty using a Co:MgF2 laser effectively reshapes the cornea to correct myopia and astigmatism. These significant corneal curvature changes are stable for over a year with clear visual outcomes.
Area of Science:
- Ophthalmology
- Biomedical Engineering
- Laser Physics
Background:
- Corneal refractive surgery aims to correct vision disorders like myopia and astigmatism.
- Laser thermal keratoplasty (LTK) offers a potential method for corneal reshaping.
Purpose of the Study:
- To investigate corneal curvature changes induced by Co:MgF2 laser thermal keratoplasty.
- To identify effective treatment patterns and laser parameters for refractive correction.
Main Methods:
- Utilized a Co:MgF2 laser for thermal keratoplasty in rabbit models.
- Analyzed corneal curvature changes and assessed refractive outcomes.
- Monitored stability of induced changes over a one-year period.
Main Results:
- Observed significant corneal curvature alterations, achieving up to 8 diopters of correction.
- Identified specific laser parameters and treatment patterns for myopia and astigmatism correction.
- Demonstrated stable refractive outcomes for at least one year post-treatment.
Conclusions:
- Co:MgF2 laser thermal keratoplasty is a viable method for inducing predictable and stable corneal curvature changes.
- This laser-based approach shows promise for correcting myopia and astigmatism with long-term stability.