A method examines fixation ability in experimental observers using after-images, suggesting effective techniques for analysis.
A method, employing after images, which can be used to investigate the fixation ability of experimental observers is explained. For a limited time period the ability to keep an eye steady on a small point does not change. The gross picture of fixation appears similar whether the eye is under binocular fixation can be studied with this technique.
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T. C. A. Jenkins (1970) studied this question.
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