The Accuracy of Continued Clinical Use of Goldmann Applanation Tonometers with Known Calibration Errors

In Vivo Real-Time Intraocular Pressure Variations during LASIK Flap Creation

“…One major limitation is the availability of a reliable noninvasive method to measure IOP with acceptable reproducibility. 21,22 Various models have been proposed to measure IOP during LASIK surgery, and most of these systems are based on recording of pressure values through cannulation of the vitreous chamber. Recently, Hernandez-Verdejo et al 23 reported the use of a porcine model to measure real-time IOP changes induced during LASIK flap creation using a reusable blood pressure transducer connected to the anterior chamber by direct cannulation.…”

Dynamic contour tonometry versus Goldmann applanation tonometry: challenging the gold standard

“…The use of GAT is exceptionally easy to learn and for the last 40 years virtually every ophthalmology resident grew up with GAT since his/her first day in training. The Goldman-type tonometer is highly robust, with minimal maintenance needs [5]. The costs for consumables such as fluorescein paper strips are negligible and the life expectancy of a Goldmann-type applanation tonometer is usually regarded to be equal to the professional life of an ophthalmologist.…”

Metrology in health: a pilot study

“…Likewise, other researchers pointed out the traceability of clinical temperature's measurement devices, such as thermometers [16], [17], [18]. In what concerns the evaluation of some ophthalmic diseases, the clinical metrology of tonometers' utilization has also been under metrological research [19], [20], [21]. Work has been developed regarding pulmonary and respiratory diseases, proving how important reproducibility is and its impact on diagnosis [22], [23].…”