Tonometry is used in all ophthalmology consultations to measure the intraocular pressure (IOP).
The tonometry examination is carried out using an instrument called tonometer, usually found, today, in its contactless version. In fact the constant evolution of technology has made possible the introduction of forced-air tonometers, thus replacing the contact with the patient’s eye with the use of forced air, as it is soft and painless to the eye surface.
The forced-air tonometer measures the force required to deform the cornea in order to reduce its pressure. So, to improve the accuracy and make better the measure of the intraocular pressure, the instruments integrate, today, the measure of the cornea thickness (pachymetry) to propose a corrected value of the intraocular pressure.
Also, thanks to different automated systems integrated to the contactless tonometer, using it is quick and easy. Moreover, the addition of the auto-refracto-keratometer function to the TONOREF III gives a 4-in-1 machine (refraction, keratometry, tonometry and pachymetry).