<p>ISO 8596:2017 specifies a range of Landolt ring optotypes and describes a method for measuring distance visual acuity under photopic conditions for the purposes of certification or licensing.</p>
<p>ISO 8596:2017 is neither intended as a standard for clinical measurements nor for the certification of blindness or partial sight.</p>
<p>Other optotypes used for clinical investigations are described in Annex A for information.</p>
Registration number (WIID)
69042
Scope
<p>ISO 8596:2017 specifies a range of Landolt ring optotypes and describes a method for measuring distance visual acuity under photopic conditions for the purposes of certification or licensing.</p>
<p>ISO 8596:2017 is neither intended as a standard for clinical measurements nor for the certification of blindness or partial sight.</p>
<p>Other optotypes used for clinical investigations are described in Annex A for information.</p>
