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BS 3668:1963

BS 3668:1963

$86.31

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

Published By Publication Date Number of Pages
BSI 1963 8
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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.

BS 3668:1963
$86.31