ISO 8596:2009

Ophthalmic optics -- Visual acuity testing -- Standard optotype and its presentation

ISO 8596:2009 specifies a range of Landolt ring optotypes and describes a method for measuring distance visual acuity under daylight conditions for the purposes of certification or licensing.

It is neither intended as a standard for clinical measurements nor for the certification of blindness or partial sight.


General information

  • Status :  Withdrawn
    Publication date : 2009-07
  • Edition : 2
  • :
    ISO/TC 172/SC 7
    Ophthalmic optics and instruments
  • 11.040.70
    Ophthalmic equipment

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