International standard
Ophthalmic instruments — Trial case lenses
Published Dec 9, 2009
ISO 9801:2009 specifies requirements for mounted ophthalmic full and/or reduced aperture trial case lenses for the determination of the refractive error of the eye. ISO 9801:2009 takes priority over ISO 15004-1, if differences exist.
Contains information from ISO Open Data (https://www.iso.org/open-data.html), made available under the ODC Attribution License (ODC-By) v1.0.
Withdrawn · Jun 5, 1997