Theoretical Considerations about Tapeta Lucida

  • Edward Zyznar
Part of the NATO Advanced Study Institutes Series book series (NSSA, volume 1)


Many fishes employ a catoptric device, the tapetum lucidum, to increase light absorption by the retina. The ocular structure and habits of these fishes indicate that they are adapted to a mode of existence in dim light and that tapeta might aid vision under such circumstances by enhancing sensitivity. Unfortunately, little experimental evidence is available about the role of fish tapeta in vision, so even an indirect approach may contribute useful information.


Visual Pigment Absolute Threshold Spatial Summation Visual Adaptation Increment Threshold 
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Copyright information

© Plenum Press, New York 1975

Authors and Affiliations

  • Edward Zyznar
    • 1
  1. 1.Departement de BiologieUniversité de MontréalMontréalCanada

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