Abstract:Tonometry is a method for measuring intraocular pressure (IOP). Goldmann applanation tonometry (GAT) represents a golden standard for measuring IOP. The measurement is conducted by measuring the force needed to straighten out a certain area of the cornea. Errors do occur when using the GAT method: inadequate shape and arrangement of fluorescent pictures, bulbar pressure, wrong calibration, astigmatism, corneal pathology (edema, distortion, central corneal thickness), body posture, obesity, the Valsalva maneuve… Show more
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