CFV-FA800V Portable Vet Rebound Tonemeter

Rebound tonometer, also known as impact tonometer, adopting an innovative sensing rebound technology. The probe will be magnetized when being inserted into the tonometer and generates N/S poles. An transient current in the solenoids of the device (lasting about 30 milliseconds) produces an transient magnetic field that causes the magnetized probe to move towards the cornea at 0.2m/s (homopolar repulsion principle). The probe bounces on the anterior surface of the cornea, slowing down and rebounding. If the ocular pressure is increased, the decelaration of the probe increases, and the duration of the impact decreases.