Fossil crane flies found in Denmark have crystals in their eyes — individual, see-through mineral pieces where the living eyes’ lenses once were. Living crane flies don’t have crystal lenses, the ...

Q: What fascinates you about the eye? A: The eye is an absolutely fascinating organ because it's an organ of extreme perfection, as Darwin has called it. We are able to adjust the focus, we are able ...

α-Crystallin is a major lens protein, comprising up to 40% of total lens proteins, where its structural function is to assist in maintaining the proper refractive index in the lens. In addition to its ...