The standard specifies requirements for mounted ophthalmic full and/or reduced aperture trial case lenses for the determination of the refractive error of the eye.
ISO 15004-1:2006 Ophthalmic instruments - Fundamental requirements and test methods - Part 1: General requirements applicable to all ophthalmic instruments
ISO 7944 Optics and optical instruments - Reference wavelengths; Technical Corrigendum 1
DIN EN ISO 9801:2010 history
2010DIN EN ISO 9801:2010-04 Ophthalmic instruments - Trial case lenses (ISO 9801:2009); German version EN ISO 9801:2009
2010DIN EN ISO 9801:2010 Ophthalmic instruments - Trial case lenses (ISO 9801:2009); German version EN ISO 9801:2009