The retina is the light-sensitive tissue at the back of the eye that plays a part... A stock photo of a doctor talking to a man in her office, with an inset of a retina. The retina is the light ...

But scientists have found a new way to predict a stroke, which they say may be as effective as relying on traditional risk factors: using photos of the eye. At the back of the eye, there is light ...

Eventually, the light-sensitive spot evolved into a retina, the layer of cells and pigment at the back of the human eye. Over time a lens formed at the front of the eye. It could have arisen as a ...