This International Standard applies to optotype displays provided by display projectors and all other visual acuity measurement systems that utilize high-contrast optotype recognition and are intended for general use, including optotypes printed on media (either opaque or intended for transmitted light). ), those that are generated electronically and those that are created by optical projection.
EN ISO 10938:2016 Referenced Document
ISO 15004-1:2006 Ophthalmic instruments - Fundamental requirements and test methods - Part 1: General requirements applicable to all ophthalmic instruments
ISO 8596:2009 Ophthalmic optics - Visual acuity testing - Standard optotype and its presentation
ISO/TR 19498:2015 Ophthalmic optics and instruments - Correlation of optotypes
EN ISO 10938:2016 history
2016EN ISO 10938:2016 Ophthalmic optics - Chart displays for visual acuity measurement - Printed@ projected and electronic
1998EN ISO 10938:1998 Ophthalmic Instruments - Chart Projectors ISO 10938:1998