[Automatic measurement of intraocular pressure with an electronic sensor tonometer]

Applanation tonometry based on Imbert-Flick's law and calibrated by Goldmann for clinical application is generally performed today with a standard diameter of the applanation surface of 3.06 mm. This diameter is determined optically by the examiner; the force required for applanation is the measured variable. With electronic, nonoptical definition of the applanation area a reading which cannot be falsified by an error on the part of the examiner can be obtained automatically and considerably faster.