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BS 3668

63rd Edition, October 9, 1963

Complete Document

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

Includes all amendments and changes through Reaffirmation Notice , August 2, 2013

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Product Details:

  • Revision: 63rd Edition, October 9, 1963
  • Published Date: August 2, 2013
  • Status: Active, Most Current
  • Document Language: English
  • Published By: British Standards Institution (BSI)
  • Page Count: 8
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

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.