Tonometry is a medical procedure used to measure the intraocular pressure (IOP) inside the eye. This measurement is important in the diagnosis and management of various eye conditions, particularly glaucoma, which is a leading cause of blindness worldwide. Tonometry devices are used to perform this measurement, and they operate on a variety of principles, each with its advantages and limitations.
The most commonly used Tonometry Device is the Goldmann applanation tonometer (GAT), which was developed in the 1950s by Swiss ophthalmologist Hans Goldmann. GAT works by flattening a small area of the cornea with a known force and measuring the amount of force required to do so. This force is then used to calculate the IOP.
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