Ease, accuracy and efficiency in one

Tonosafe are designed for single use, without compromising the performance of Goldmann Applanation Tonometers. Tonosafe reduces the risk of cross infection between patients and improves productivity by freeing doctors and nurses to focus on productive and important tasks.

  • Easy to use. The Tonosafe prism and holder combine to have the same mass as the Goldmann prism, so no conversion of results is needed.
  • Improves efficiency. Positing the prism is quick, and the optical clarity provides a superb view of florescent semi-circles.
  • Provides extreme accuracy. Calibrated to Goldmann standards, Tonosafe can be used in Goldmann and Perkins tonometers.
  • Clinically validated by many papers over a 10 year period. Salvi et al. (2004) reports that it may be used for screening plus routine clinical use.

Saves you time

Many hospitals using Tonosafe report higher productivity among doctors and nurses by freeing time previously spent on low-level tasks such as sterilizing prisms. It is more affordable to use Tonosafe as long as it takes you over an average of two minutes to sterilize each prism.

Easy to use

Customers report that using Tonosafe generally takes no longer than using conventional prisms. Tonosafe saves you more time by eliminating the sterilization process. Tonosafe also makes your facility more environmentally friendly by having a separate ‘prism head’ that is disposed after use and a ‘holder’ that is retained for 19 additional uses.

Eliminates cross-infection and contamination

Our commitment to making your practice or facility more successful obligates us to help you reduce infection, save money and help free up valuable doctor and nurse time. With Tonosafe, you dramatically reduce the risk of infections and corneal burns. And that reduces the risk of costly and stressful litigation.

Knowing the costs

Even if you haven’t had any issues, it’s important to know that the effects of cross infection manifest themselves long after the consultation.

How to Use Tonosafe

Tonosafe has been developed to avoid the necessity of cleaning and disinfecting applanation tonometer prisms.

It is intended for use as a disposable applanating and optical doubling prism for use with Goldmann and Perkins applanation tonometers.

The Tonosafe is precisely molded to provide acceptable optical performance. Combined with the holder, the prism has the same mass as the standard Goldmann prisms. The doubling effect is within proposed International Standards. Tonosafe’s high sensitivity and specificity validates its use in both screening and routine clinical use.


Haag-Streit Tonosafe™ Disposable Prisms

SKU: 5805080
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