This is a must read article for fly tyers, but is also important for trout anglers. What trout see affects everything from fly design and choice to how we present the fly to trout. Do trout really see ultraviolet light (UV)? tune in to find out.
A trout’s eye is similar to ours in many ways, but has many key differences. They lack eyelids to protect the eye from exposure when we lift them out of the water and have no pupils to constrict in bright light. Anglers need to protect their catch from harm when landed and handled.