Our modern vision evolved from an ancient one-eyed worm creature

By George Kafetzis, Research Fellow in Neuroscience, University of Sussex
Dan Nilsson, Professor emeritus of Zoology, Lund University

It’s easy to take our eyes for granted. But our recent research shows they took an incredible evolutionary journey to reach their current familiar form.

It has long been known that our (vertebrate) eyes differ fundamentally from the ones of our distant relatives (invertebrates), because of their cell composition and how they develop before birth. However, answers to why or how these differences first emerged long remained elusive.

Our study suggests that our eyes descend from…

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