Abstract

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.


General information 

  • Status
     :  Withdrawn
    Publication date
     : 1994-02
  • Edition
     : 1
    Number of pages
     : 4
  • Technical Committee
     : ISO/TC 172/SC 7 Ophthalmic optics and instruments
  • ICS
     :
    11.040.70 Ophthalmic equipment

Life cycle


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