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Lens optical properties in the eyes of large marine predatory teleosts.

Kröger, Ronald LU ; Fritsches, Kerstin and Warrant, Eric LU (2009) In Journal of Comparative Physiology A 195. p.175-182
Abstract
The optical properties of the crystalline lenses were studied in a variety of large predatory teleosts (bony fishes) that forage in the open ocean, some of them at considerable depths. We found the first fish lenses that are free of measurable longitudinal spherical aberration, i.e., are perfectly monofocal, in contrast to the multifocal lenses that are typical for smaller fishes living close to the surface. In fact, none of the lenses investigated in this study were clearly multifocal. Most, but not all, of the lenses had long normalized focal lengths (focal length/lens radius) of up to 3.3 lens radii. A monofocal lens of long focal length, combined with spectrally suitably placed cone pigments, may be the optimal solution for vision of... (More)
The optical properties of the crystalline lenses were studied in a variety of large predatory teleosts (bony fishes) that forage in the open ocean, some of them at considerable depths. We found the first fish lenses that are free of measurable longitudinal spherical aberration, i.e., are perfectly monofocal, in contrast to the multifocal lenses that are typical for smaller fishes living close to the surface. In fact, none of the lenses investigated in this study were clearly multifocal. Most, but not all, of the lenses had long normalized focal lengths (focal length/lens radius) of up to 3.3 lens radii. A monofocal lens of long focal length, combined with spectrally suitably placed cone pigments, may be the optimal solution for vision of high spatial and spectral resolutions in a habitat where the available spectrum of light is limited. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Longitudinal chromatic aberration, Fish, Longitudinal spherical aberration, Color vision, Focal length
in
Journal of Comparative Physiology A
volume
195
pages
175 - 182
publisher
Springer
external identifiers
  • wos:000262987200006
  • scopus:59449089305
ISSN
1432-1351
DOI
10.1007/s00359-008-0396-1
language
English
LU publication?
yes
id
6895b115-63c9-49b4-89ae-38f03c8cc027 (old id 1276609)
date added to LUP
2009-02-02 12:21:58
date last changed
2017-11-12 03:40:43
@article{6895b115-63c9-49b4-89ae-38f03c8cc027,
  abstract     = {The optical properties of the crystalline lenses were studied in a variety of large predatory teleosts (bony fishes) that forage in the open ocean, some of them at considerable depths. We found the first fish lenses that are free of measurable longitudinal spherical aberration, i.e., are perfectly monofocal, in contrast to the multifocal lenses that are typical for smaller fishes living close to the surface. In fact, none of the lenses investigated in this study were clearly multifocal. Most, but not all, of the lenses had long normalized focal lengths (focal length/lens radius) of up to 3.3 lens radii. A monofocal lens of long focal length, combined with spectrally suitably placed cone pigments, may be the optimal solution for vision of high spatial and spectral resolutions in a habitat where the available spectrum of light is limited.},
  author       = {Kröger, Ronald and Fritsches, Kerstin and Warrant, Eric},
  issn         = {1432-1351},
  keyword      = {Longitudinal chromatic aberration,Fish,Longitudinal spherical
aberration,Color vision,Focal length},
  language     = {eng},
  pages        = {175--182},
  publisher    = {Springer},
  series       = {Journal of Comparative Physiology A},
  title        = {Lens optical properties in the eyes of large marine predatory teleosts.},
  url          = {http://dx.doi.org/10.1007/s00359-008-0396-1},
  volume       = {195},
  year         = {2009},
}