Tonosafe™ is a disposable measuring prism for all Goldmann applanation tonometers as well as the Perkins tonometer. Tonosafe™ disposable prisms are a convenient, effective method of reducing the risk of cross infection between patients.
 
Tonosafe™ avoids the need for time-consuming and laborious disinfection without compromising the original Goldmann quality. Developed for single use only, it reliably eliminates the risk of cross infection even in the most difficult situations. Calibrated to Goldmann standards, Tonosafe™ delivers accurate results with all Goldmann and Perkins contact tonometers.