This standard PD ISO/TR 19498:2015 Ophthalmic optics and instruments. Correlation of optotypes is classified in these ICS categories:
11.040.70 Ophthalmic equipment
This Technical Report 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.
