Everyone deserves and benefits from having healthy eyes. Regardless of profession or lifestyle, vision is central to our quality of life and how we move through and “see” the world.

This is the ultimate truth of animal eyes: We can only understand their evolution when we learn to see the world through them. Our eyes evolved through natural selection—but human ingenuity can ...

By analysing the properties of animals' visual systems, we can model what the world would look like through their eyes. The images below each show a scene as viewed by a human. Drag the slider to the ...