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      Visual acuity in insects.

      1
      Annual review of entomology
      Annual Reviews

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          Abstract

          The acuity of compound eyes is determined by interommatidial angles, optical quality, and rhabdom dimensions. It is also affected by light levels and speed of movement. In insects, interommatidial angles vary from tens of degrees in Apterygota, to as little as 0.24 degrees in dragonflies. Resolution better than this is not attainable in compound eyes of realistic size. The smaller the interommatidial angle the greater the distance at which objects--prey, predators, or foliage--can be resolved. Insects with different lifestyles have contrasting patterns of interommatidial angle distribution, related to forward flight, capture on the wing, and predation on horizontal surfaces.

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          Author and article information

          Journal
          Annu Rev Entomol
          Annual review of entomology
          Annual Reviews
          0066-4170
          0066-4170
          1997
          : 42
          Affiliations
          [1 ] Sussex Centre for Neuroscience, School of Biological Sciences, University of Sussex, Brighton BN1 9QG, UK.
          Article
          10.1146/annurev.ento.42.1.147
          15012311
          b0b37040-2bb5-4d6f-a237-3af22f1e262c
          History

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