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DRAFT

This International Standard applies to displays of high-contrast text that are designed for general near vision assessment. It does not apply to measurement systems designed for specialized testing of near visual acuity, e.g., low vision or low contrast charts or those intended for transillumination, or electronically generated systems.

 

Document History

  1. DANSK DSF/ISO/DIS 7921

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    Ophthalmic optics and instruments – Near vision charts

    • Historical Version
  2. DANSK DS/ISO 7921


    Ophthalmic optics and instruments – Near reading charts

    • Most Recent