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Correction of empty-field myopia on the basis of the dark-focus of accommodation

1979; Optica Publishing Group; Volume: 69; Issue: 1 Linguagem: Inglês

10.1364/josa.69.000089

2375-1037

Robert B. Post, Robert L. Owens, D. Alfred Owens, H. W. Leibowitz,

Advanced Image Fusion Techniques

The influence of negative spherical corrections on the detection of a small increment flash presented in a uniform field or Ganzfeld were determined. The range investigated included each observer's normal correction as well as values based on the focus assumed by each observer in total darkness (dark-focus of accomodation). A correction equivalent to the dark-focus resulted in maximum sensitivity. The results suggest a convenient technique for the determination of optimal correction for empty-field viewing conditions.