Anti-evolutionists like to point to the eye as though it is proof that God exists, in that the eye is so complex that it requires a designer. There are many problems with this argument. For instance, just because eyes are incredibly complex doesn’t mean that “God” exists–perhaps we just don’t know enough to explain eyes. The lack of an explanation is merely the lack of an explanation.
But we actually do know a lot about the evolution of eyes, as David Attenborough explains in this 3-minute video.