Abdul Razak
The eye is a sense an organism like fish and an optical instrument and vision. The vision of the eye is a biophysical process. Photic condition in the aquatic environment is influenced by many factors. The aquatic environment gives widely diversity varying in turbidity, color and contrast. Eyes of fishes are designed by environmental condition and related or influenced the optics of the eye fish to its anatomy, describe the process of accommodation and the function in vision. Eye fish have photoreceptors in duplex retina that support the vision in spatial or temporal pattern of light. Besides that, in eyes of fishes, we found many type or variation visual pigment on freshwater fishes, coral reef fishes, pelagic fishes and deep-sea fishes. This article a review about biophysics process and variation of visual pigment photoreceptor on freshwater fishes, coral reef fishes, pelagic fishes and deep-sea fishes. © 2019 Published under licence by IOP Publishing Ltd.
Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang, Prof Hamka Street, Padang, 25131, Indonesia
