(Phys.org)—A team of researchers with the University of Pennsylvania has uncovered the means by which squid eyes are able to adjust to underwater light distortion. In their paper published in the journal Science, the group describes their work analyzing squid eye parts under a microscope, what they found and then offer an explanation of the process involved in squid vision. Tobias Madl with Medical University of Graz in Austria offers an overview of how lenses work in general in a Perspective piece in the same journal issue, and outlines the work done in this new effort.