BS EN ISO 8597:1996 - Visual acuity test types. Method for correlating optotypes used for non-clinical purposes
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BS EN ISO 8597:1996 is a British Standard that specifies a method for correlating optotypes used for non-clinical purposes in visual acuity tests. This standard provides guidelines for the design and use of optotypes, which are the standardized symbols or letters used in eye charts to measure visual acuity. Visual acuity is a measure of how well a person can see, and it is an important factor in assessing visual performance.
The standard sets out the requirements for optotypes used in non-clinical settings, such as schools, occupational testing, and driver's license examinations. It aims to ensure consistency and accuracy in visual acuity testing in these contexts. The standard may include specifications for the design of optotypes, their size, spacing, and arrangement on the test chart, as well as guidelines for testing conditions and procedures.
