GB 11533-1989
AbolishedStandard logarithmic visual acuity charts
标准对数视力表
Application Summary AI generated
This standard specifies the design, layout, and measurement method for logarithmic visual acuity charts used in ophthalmic and optometric testing. It is applied in clinical eye examinations, vision screening programs, and occupational health assessments across China to ensure consistent and accurate measurement of distance visual acuity. The chart is the mandatory reference for evaluating vision standards in contexts such as driver's license applications, school health checks, and medical certifications.
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