title: The spectral transmission of the lens and cornea of the brown trout (Salmo trutta) and goldfish (Carassius auratus)--effect of age and implications for ultraviolet vision.
abstract: This study reports spectral transmission curves (250-700 nm) for the lenses and corneas of two teleost species known to be u.v. sensitive; brown trout (Salmo trutta) aged 0-3 yr, and goldfish (Carassius auratus) aged 0-4 yr. In both cases there is a decrease in lenticular short-wave transmission with increased age which cannot be explained by an increase in lens size alone. Corneas of goldfish go through a similar ageing process while those of the trout do not. An orange pigmentation located in the dorsal cornea of goldfish is also described.
authors.affiliation: Department of Optometry and Visual Science, City University, London, U.K.
authors.forename: R H
authors.initials: RH
authors.lastname: Douglas
mesh_terms: D000375:Aging / Q000502:physiology*; D000818:Animals; D003315:Cornea / Q000502:physiology*; D003530:Cyprinidae / Q000502:physiology*; D005127:Eye Color / Q000502:physiology; D006054:Goldfish / Q000502:physiology*; D007908:Lens, Crystalline / Q000502:physiology*; D010860:Pigments, Biological / Q000502:physiology; D012487:Salmonidae / Q000502:physiology*; D013057:Spectrum Analysis; D014337:Trout / Q000502:physiology*; D014466:Ultraviolet Rays; D014785:Vision, Ocular / Q000502:physiology
chemical_list: D010860:Pigments, Biological