One cell, the “midget retinal ganglion cell,” carries the vast majority of visual information from the eye to the brain in humans. It has been thought to be a primate-specific innovation, making it impossible to study in accessible model systems. Josh Sanes shares how, using molecular comparison of retinas from 17 vertebrate species, researchers from his team and that of former postdoc Karthik Shekhar, were able to trace back through evolution and identify mouse orthologues of midget cells.

By combining retinal imaging, genetics, and big data, physician-researchers from Harvard Medical School, Mass. Eye and Ear, Massachusetts General Hospital, and the Broad Institute of MIT and Harvard have found that they can estimate how likely a person is to develop eye and systemic diseases in the future.

Working with mice, HMS researchers have identified a potential new strategy for replacing retinal ganglion cells to treat glaucoma, one of the leading causes of blindness worldwide. Featured in HMS News From Petr Baranov and colleagues, first author Jonathan R. Soucy.