Abstract: A method and apparatus for measurement and distinguishing between brawny and pitting oedema comprises a measurement head including a tactile sensor to measure a first characteristic of the oedema and a force decay sensor mounted adjacent the tactile sensor, to measure a second characteristic of the oedema so as to distinguish brawny oedema from pitting oedema. The tactile sensor may be a resonance oscillating sensor which may determine frequency shift, and the forced decay sensor may provide information regarding the degree of displaced fluid as a measure of pitting oedema through measurement of decay of force.

Abstract: The present invention relates to a method and a device for measuring the pressure p in an eye, the so-called intraocular pressure. The method includes a contact body with a known geometry being pressed against the eye with a gradually increasing contact force F and that when the area of deformation of the eye A can be determined, the pressure can be obtained from the relation P=F/A, whereby the frequency characteristic of a contact body associated with a sensor system oscillating in resonance is read, the contact body is pressed against the eye to form a new system oscillating in resonance, the contact force and frequency characteristic for the new system is read, and the change in frequency characteristic is calculated. In this way, the pressure of the eye can be determined since the sought deformation area A is a function of the change A(ƒich ar!).