Abstract
Ocular dose-response relationships were experimentally determined for selected exposure conditions at the erbium and holmium laser wavelengths of 1.54 and 2.06 μm. The ocular responses were observed in Rhesus monkey eyes and were confined to the cornea. The EDsos (effective dose for 0.5 probability of producing a biomicroscopically visible corneal lesion) determined for single corneal exposures were as follows: Wavelength Exposure Irradiance ED50 duration diameter 1.54 μm 930 μsec 1.0 mm 9.6 J/cm2 2.06 μm 100 μsec 1.8 mm 2.9 J/cm2 2.06 μm 42 nsec 0.32 mm 5.2 J/cm2 The depth and diameter of the corneal lesions were both dose and wavelength dependent. The wavelength dependence of the dose required to produce a corneal response is indicative of the relative absorption properties of the cornea. These results suggest that current permissible exposure limits be altered to reflect the relative absorption properties of the ocular media.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
