Non-contact tonometry (or air puff tonometry) is different from pneumatonometry and was invented by Bernard Grolman of Reichert, Inc (formerly American Optical). It uses a rapid air pulse to flatten (flatten) the cornea. Corneal flattening is detected by an electro-optical system. Intraocular pressure is estimated by detecting the force of the air jet at the time of flattening. Historically, non-contact tonometers were not considered an accurate way to measure IOP, but rather a quick and easy way to detect high IOP. However, modern non-contact tonometers have been shown to correlate well with Goldmann tonometry measurements and are particularly useful for measuring IOP in children and other patient groups.
Reunión virtual con el Dr. Julian Triviño (Colombia)