
Ophthalmic Optics - Visual Acuity Testing - Standard Optotype And Its Presentation
出版:Osterreichisches Normungsinstitut

专家解读视频
Gives a range of Landolt ring optotypes and describes a method of measuring distance visual acuity under daylight conditions for the purposes of certification or licensing. Not intended for use for clinical measurements nor for certifying blindness or partial sight.
UNI EN ISO 8596:2009 - Identical
NBN EN ISO 8596:2009 - Identical
NS EN ISO 8596:2009 - Identical
SS EN ISO 8596 Ed. 2 (2009) - Identical
UNE EN ISO 8596:2010 - Identical
SN EN ISO 8596:2009 - Identical
BS EN ISO 8596:2009 - Identical
EN ISO 8596:2009 - Identical
NEN EN ISO 8596:2009 - Identical
I.S. EN ISO 8596:2009 - Identical
DIN EN ISO 8596 (2009-10) - Identical
NF EN ISO 8596:2009 - Identical
NS EN ISO 8596:2018 - Identical
NF EN ISO 8596:2018 - Identical
EN ISO 8596:2018 - Identical
NEN EN ISO 8596:2018 - Identical