~40 independent eye-evolution events: vertebrate camera eye (RPE-cone-rod), cephalopod camera eye (no blind spot), arthropod compound, ocelli, simple-pit; convergence on optical solutions.
~40 independent eye-evolution events: vertebrate camera eye (RPE-cone-rod), cephalopod camera eye (no blind spot), arthropod compound, ocelli, simple-pit; convergence on optical solutions.