Improved Clinical Technique For Wald-Marré Functions

  • Margaret Lutze
  • Joel Pokorny
  • Vivianne C. Smith
Chapter
Part of the Documenta Ophthalmologica Proceedings Series book series (DOPS, volume 46)

Abstract

We have described a computer-controlled technique to assess Wald-Marré functions. The background fields are similar in spectral composition to those used by previous authors, however flicker rather than discrete flashes was used for the test stimulus. For estimation of long- and middle-wavelength cone sensitivities, a flicker rate of 15 Hz was used; for the short, 2.4 Hz was used.

A computer-controlled psychophysical tracking method was used to obtain thresholds for test wavelength presentations. This method allowed a single cone sensitivity curve to be obtained in a short period of time (10–15 min). It can be used clinically as a fast and easy method to obtain relative cone sensitivities for patients.

Keywords

Test Stimulus Field Size Color Vision Cone Sensitivity Flicker Rate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Martinus Nijhoff Publishers, Dordrecht 1987

Authors and Affiliations

  • Margaret Lutze
    • 1
  • Joel Pokorny
    • 2
  • Vivianne C. Smith
    • 2
  1. 1.Eye Research LaboratoriesUniversity of ChicagoChicagoUSA
  2. 2.ChicagoUSA

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