Method and apparatus for measuring in the case of pulsed irradiation of a material density fluctuations caused, as well as an apparatus for light treatment of certain points on the fundus oculi

摘要

A method and a device for measuring in the case of pulsed irradiation in particular by means of a laser beam source of a material density fluctuations caused, in which a measurement signal acoustically or optically is detected, wherein the change in the intensity and / or of the temporal profile of the in the case of the irradiation of a certain material location resulting measurement signal is detected reliably, and from the measurement signal, a linear thermo elastic signal component is removed. The method and the device are preferably in the case of the coagulation of the fundus oculi used on human or animal eyes.