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About This Item

 

Full Description

This document applies to printed, projected, and electronic displays of high-contrast text that are designed for assessment and measurement of near reading acuity under photopic conditions. The definitions and requirements of this document apply to the Latin alphabet.

 

Document History

  1. DANSK DSF/ISO/DIS 7921


    Ophthalmic optics and instruments – Near vision charts

    • Historical Version
  2. DANSK DS/ISO 7921

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    Ophthalmic optics and instruments – Near reading charts

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