BSI BS 3668:1963

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Specification for red and green filters used in ophthalmic dichromatic and dissociation tests

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BSI BS 3668:1963

Specification for red and green filters used in ophthalmic dichromatic and dissociation tests

PUBLISH DATE 1963
BSI BS 3668:1963

This British Standard specifies requirements for red and green filters of glass or plastics materials used in ophthalmic tests as follows:

  1. dichromatic tests for ametropia, and

  2. dissociating the eyes in various tests of binocular co-operation.

Specifies requirements for red and green filters of glass or plastics materials used in ophthalmic tests as follows:

  • (a) dichromatic tests for ametropia, and
  • (b) dissociating the eyes in various tests of binocular co-operation.
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