Letter | Published:

Binocular Eye Movements when Convergence is Subjectively Changed

Nature volume 169, pages 10111013 (14 June 1952) | Download Citation



THE photoelectric corneal reflex method of recording eye movements of subjects in the sitting position1 has been applied to the investigation of eye movements which occur when convergence is voluntarily changed. In these experiments, one fixation target only was used; this was a bright pin-hole, angular diameter 1′, distant 5½ ft. from the subject and situated on the visual axis of the right eye when this eye is looking straight ahead. The subject fixated this target binocularly, then increased his convergence by subjectively moving both eyes towards the nose through equal angles, the size of which was at his discretion, and then resumed steady fixation of the target. This cycle was repeated several times during a single recording; the frequency was also at the subject's discretion.

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  1. 1.

    , Brit. J. Ophthal., 35, 21 (1951).

  2. 2.

    , and , Nature, 163, 803 (1949).

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  1. Chelsea Polytechnic, London, S.W.3. Jan. 11.

    • MARY P. LORD


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