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Blur: A sufficient accommodative stimulus

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Abstract

Experiments under a variety of open and closed loop feedback configurations demonstrate that accommodative responses to target blur are equivalent to those to defocus blur; this supports blur as the ‘sufficient’ neurological stimulus to accommodations. The hunting action of accommodation compensates for the even error aspect of blur and also adaptively minimizes any close loop error components while finally accepting open loop components.

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Authors and Affiliations

  1. Department of Mechanical Engineering of Physiological Optics, University of California, 94720, Berkeley, Cal., USA

    Stephen Phillips & Lawrence Stark

  2. Department of Electrical Engineering and Computer Sciences, University of California, 94720, Berkeley, Cal., USA

    Stephen Phillips & Lawrence Stark

Authors
  1. Stephen Phillips
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  2. Lawrence Stark
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Additional information

We acknowledge partial support from NIH Training Grants in Bioengineering and in Physiological Optics, and the helpful discussion with our colleagues, Prof. V.V. Krishnan and Dr. Douglas Shirachi.

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Phillips, S., Stark, L. Blur: A sufficient accommodative stimulus. Doc Ophthalmol 43, 65–89 (1977). https://doi.org/10.1007/BF01569293

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