Model for a possible non-visual function of the iris, lens and peripheral retina.
D006706:Homeostasis; D006801:Humans; D007498:Iris / Q000502:physiology*; D007908:Lens, Crystalline / Q000502:physiology*; D008954:Models, Biological; D012160:Retina / Q000502:physiology*; D014785:Vision, Ocular