A 77-year-old man awoke with blurred vision in each eye. His vision had been normal the night before. He had no headaches, jaw claudication, or other symptoms of giant cell arteritis. He denied any ...

The human retina contains some 100 million photoreceptor cells. When these are stimulated with light, they communicate that information to the brain and we perceive light. Researchers have now ...

New research points to an easily measured eye response to light as a potentially useful way of diagnosing autism in very young children. Further testing is currently underway in a large cohort of ...

In addition to allowing us to see, the mammalian eye also detects light for a number of "nonvisual" phenomena. A prime example of this is the timing of the sleep/wake cycle, which is synchronized by ...

A blue glare illusion was perceived to be brightest and caused larger pupil constriction The Department of Computer Science and Engineering at Toyohashi University of Technology formed a research team ...

The search for the lesion(s) was targeted to the visual pathways posterior to the LGN, because there was bilateral visual loss with normal pupillary light reflexes. This finding places the causative ...