BS EN ISO 8612:2009

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Test methods
6 Accompanying documents
7 Additional information
8 Marking
Annex A (normative) - Reference tonometer and method
                      for determining reference IOP
Annex B (normative) - Design compliance testing

Gives minimum requirements and the design compliance procedure for tonometers intended for routine clinical use in the estimation of intraocular pressure (IOP).

This International Standard, together with ISO15004-1, specifies minimum requirements and the design compliance procedure for tonometers intended for routine clinical use in the estimation of intraocular pressure (IOP).

This International Standard takes precedence over ISO15004-1, if differences exist.

NOTE The true intraocular pressure is seldom directly measured since it would require invasion of the eye. Since the true IOP cannot be clinically measured, alternative methods are specified for determining a reference IOP (AnnexA and AnnexB).