SN EN ISO 8596 : 2009
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
OPHTHALMIC OPTICS - VISUAL ACUITY TESTING - STANDARD OPTOTYPE AND ITS PRESENTATION
08-01-2018
01-12-2013
Committees responsible
National foreword
Foreword
Specification
1 Scope
2 Normative references
3 Standard optotype
4 Visual acuity grades and standard optotype grades
5 Test area and spacing between standard optotypes
6 Presentation of the standard optotype
7 Luminance
8 Test report
Tables
1 Visual acuity grades
2 Spacing between standard optotypes (border to border)
3 Luminance
Figure
1 Landolt ring
Annex
ZA (normative) Normative references to international
publications with their corresponding European
publications
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