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A correction factor for ablation algorithms assuming deviations of Lambert-Beer’s law with a Gaussian-profile beam

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5 Author(s)
Rodriguez-Marin, Francisco ; Departamento de Óptica, Edificio Mecenas, Facultad de Ciencias, Universidad de Granada, Granada, Spain ; Anera, Rosario G. ; Alarcon, Aixa ; Hita, E.
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In this work, we propose an adjustment factor to be considered in ablation algorithms used in refractive surgery. This adjustment factor takes into account potential deviations of Lambert-Beer’s law and the characteristics of a Gaussian-profile beam. To check whether the adjustment factor deduced is significant for visual function, we applied it to the paraxial Munnerlyn formula and found that it significantly influences the post-surgical corneal radius and p-factor. The use of the adjustment factor can help reduce the discrepancies in corneal shape between the real data and corneal shape expected when applying laser ablation algorithms.

Published in:

Applied Physics Letters  (Volume:100 ,  Issue: 17 )

Date of Publication:

Apr 2012

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