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Method for the development of realistic boundary conditions for the simulation of non-contact tonometry

: Münch, Stefan; Balzani, Daniel; Röllig, Mike; Spörl, Eberhard


Proceedings in applied mathematics and mechanics. PAMM 17 (2017), No.1, Special Issue, pp.207-208
ISSN: 1617-7061
International Association of Applied Mathematics and Mechanics (GAMM Annual Meeting) <88, 2017, Weimar>
Journal Article, Conference Paper
Fraunhofer IKTS ()
Tonometer; Zeitabhängigkeit; numerische Strömungssimulation; Tonfrequenzmessung; Düsendruck

The aim of the study presented here, is to understand and characterize the air puff generated by a non‐contact tonometer (NCT). Therefore, we propose a method to experimental calibrate a computational fluid dynamic (CFD) model of an eye examined with a Corvis ST. The time dependence of the nozzle pressure was found to be equal to the pressure measured by a device intern sensor. However, the maximum pressure identified at the nozzle inlet reaches approximately 25 kPa.