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Development of visual acuity
  1. G. V. Catford,
  2. A. Oliver

    Abstract

    A hand-held electrically operated instrument has been devised to assess visual acuity by means of the phenomenon of opto-kinetic fixation nystagmus.

    An accurate determination of visual acuity has been obtained from an early age, and a graph of the normal visual acuity development produced.

    It has been confirmed that adult acuity is reached by 3 years of age.

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