GSO ISO/TR 19498:2021
Gulf Standard
Current Edition
·
Approved on
01 July 2021
·
Ophthalmic optics and instruments — Correlation of optotypes
GSO ISO/TR 19498:2021 Files
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GSO ISO/TR 19498:2021 Scope
ISO/TR 19498:2015 specifies a method of correlation between a given set of optotypes and the standard optotype (Landolt ring) formed and presented as specified in ISO 8596.
All test methods are type tests and suitable equivalent test methods may be substituted.
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