Haag-Streit Perkins MK3 Manual De Instrucciones página 9

Use only original Haag-Streit Goldmann tonometer measuring prisms or the
Tonosafe sterile disposable prisms available from Haag-Streit UK.
It is known that refractive surgery has an effect on Goldmann Applanation
Tonometry (GAT) values, as the procedure changes the biomechanical
properties of the cornea. This could cause an underestimation of the
pressure and therefore, secondary checks are required to confirm diagnosis.
The biomechanical properties of the cornea have an effect on the
measurement readings.
1.6 Tonosafe
Tonosafe was developed to avoid the necessary cleaning and disinfection
of measuring prisms from applanation tonometers. Tonosafe is a disposable
applanation and optical duplication prism for Goldmann and Perkins
applanation tonometers, for single use.
Additional details can be found in the separate Tonosafe instructions for use.
1.7 Disinfection
Do not re-use Tonosafe sterile disposable prisms.
The Haag-Streit Goldmann tonometer measuring prisms are made of
Polymethyl methacrylate (PMMA). Please take note of the following restrictions:
• Do not disinfect with alcohol
• Do not clean with acetone
• Do not disinfect using UV radiation
• Do not sterilise using steam or ethylene oxide
• Do not expose to temperatures above 60°C
The Haag-Streit Goldmann measuring prisms are not shipped disinfected and
must be cleaned and disinfected before their first use in accordance with the
separate instruction manual on the cleaning and disinfection of tonometer
measuring prisms and contact glasses.
• The operator shall be liable in the event of non-observance of the cleaning
and disinfecting process.
The above-mentioned instruction manual, the brief instructions,
information on the disinfection of tonometer measuring prisms and
contact glasses and additional information can always be found on the
website www.haagstreituk.com
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