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CHROMATIC ABERRATION OF THE VERTEBRATE LENS
Author(s) -
Kreuzer R. O.,
Sivak J. G.
Publication year - 1985
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1985.tb00633.x
Subject(s) - chromatic aberration , optics , focal length , lens (geology) , chromatic scale , wavelength , physics , achromatic lens
— A split‐laser technique employing red and blue lasers was used for direct measurement of longitudinal chromatic aberration of excised lenses from a spectrum of vertebrates (fish, amphibians, birds and mammals). The chromatic aberration (442–633 nm) of lenses of most species amounts to a relatively constant 4.6% of equivalent focal length. Dog lenses show somewhat larger amounts (5.7%) while duck and rock bass lenses show less wavelength variation in focal length (3.42–2.70%). In general, chromatic aberration varies little with lens eccentricity, although this point requires further study with more attention to paraxial measurements.