Previous Article Next Article Table of Contents Science, Vol.357, No.6351, 564-569, 2017 DOI10.1126/science.aal2674 Export Citation Eye patches: Protein assembly of index-gradient squid lenses Cai J., Townsend J. P., Dodson T. C., Heiney P. A., Sweeney A. M. Please enable JavaScript to view the comments powered by Disqus.