Analog solution of laser retinal coagulation
Copyright policy )Analog solution of laser retinal coagulation
A mathematical calculation of the extent of retinal coagulation which results when a focused laser beam is incident on the retina, is described. For the chosen model of the eye an analytic solution of the diffusion equation was not possible; however, a resistance-capacity analog enabled the temperature distribution as a function of time to be obtained and, assuming a definite coagulation threshold (70°C), enabled the volume coagulated to be predicted. Isotherms corresponding to peak temperatures of 70°C are presented which show the extent of coagulation as a function of beam energy and beam defocusing.
- University of Saskatchewan Canada
Cornea, Vitreous Body, Choroid, Lasers, Biophysics, Temperature, Humans, Light Coagulation, Models, Theoretical, Biophysical Phenomena, Mathematics, Retina, Sclera
Cornea, Vitreous Body, Choroid, Lasers, Biophysics, Temperature, Humans, Light Coagulation, Models, Theoretical, Biophysical Phenomena, Mathematics, Retina, Sclera
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