title: Light transmittance by goldfish eyes of different sizes.
abstract: The transmittance of the optic media was measured in eyes from small (4.3-5.5 cm standard body length), medium (8.3-10.0 cm) and large (14.2-17.5 cm) goldfish. Few differences were observed over this size range, despite a doubling in diameter of the globe. Relative transmittance was constant (+/- 0.04 log unit) between 450-700 nm, and absolute transmittance through the lens was approximately constant as well. Changes did occur, however, in the shorter wavelengths: at 350 nm, transmission of large eyes was diminished by about 0.40 log unit relative to small eyes.
mesh_terms: D000818:Animals; D001699:Biometry; D003530:Cyprinidae / Q000502:physiology*; D005123:Eye / Q000033:anatomy & histology; D006054:Goldfish / Q000033:anatomy & histology / Q000502:physiology*; D008027:Light; D009799:Ocular Physiological Phenomena