Prior to 2002, the scientific community had only known about two types of photoreceptor cells in the retina - rods and cones ... Scientists, however, had suspected the existence of a third class of ...

Researchers reveal that microglia, the brain's immune cells, play a key role in protecting retinal health and managing eye ...

For nearly 150 years, scientists considered rods and cones to be the eye’s only photoreceptors – cells that turn light energy into electrical impulses.

Retinitis pigmentosa (RP) refers to a group of inherited retinal degenerations resulting form rod and cone photoreceptor cell death. The rod cell death due to deleterious genetic mutations has ...

During most eye infections or injuries, neutrophils, immune cells found in the blood, are usually the first line of defense.

Researchers have discovered that when photoreceptor cells in the retina are damaged, microglia, or the brain’s immune cells, ...

Cell Press. "Blind Humans Lacking Rods And Cones Retain Normal Responses To Non-visual Effects Of Light." ScienceDaily. www.sciencedaily.com / releases / 2007 / 12 / 071213120939.htm (accessed ...

To address whether the cells identified in rodents and primates also exist in humans, Zaidi and colleagues first had to find patients who lacked functional rods and cones, but retained pRGCs—a ...

Rod and cone photoreceptor cell death in retinitis pigmentosa. Rod cell death due to the deleterious genetic mutations is associated with apoptosis, which involves the activation of caspase ...

Scientists have discovered a fossilized fish so well preserved that the rods and cones in its 300-million-year-old eyeballs are still visible under a scanning electron microscope.

Ann Arbor, MI -- Scientists have successfully transplanted light-sensing cells called photoreceptors directly into the eyes of mice and restored their visual function. The achievement is based on ...