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Former Pittsburgh Steelers running back Najee Harris sustained an eye injury in a fireworks accident at a Fourth of July ...
Cones outnumber rods only in the center of the retina, which is the area of greatest density. It is also the area most heavily used by daytime, direct vision. But rods do fire during the day, ...
Researchers have uncovered a surprising connection between a cancer-related signaling pathway and the blood-brain and blood-retina barriers.