Astigmatism occurs when the eye is shaped more like an oval than a sphere, causing blurry vision. Astigmatism affects about one in three Americans and it occurs more frequently as you age. The ...

The perception of light is extremely fast. But the analysis was carried out on molecules in solution in the laboratory. Scientists reproduced the experiment on mice, in order to observe the processing ...

A newly developed light-sensing protein called the MCO1 opsin restores vision in blind mice when attached to retina bipolar cells using gene therapy. The National Eye Institute, part of the National ...

There are typically no visual changes in the initial stages of glaucoma. As damage occurs to the optic nerve, people may develop blind spots in their peripheral visual field. Some can see halos and ...