The newly discovered cells are shaped like twisted tree branches and were found deep inside the retina of a rat's eye. Like the eye's rods and cones, the new cells contain chemicals that react to ...

Noninvasive imaging of the human rod photoreceptor mosaic using a confocal adaptive optics scanning ophthalmoscope. Biomedical Optics Express, 2011; 2 (7): 1864 DOI: 10.1364/BOE.2.001864 ...

Pupil - Black part of the eye. This is an opening that lets light in Lens - This focuses light onto the retina Retina - Light-sensitive layer at the back of the eye. It is made up of rods and cones ...

Light passes through the eyeball to the retina. There are two main types of light receptors called rods and cones. Rods are more sensitive to light than cones so they are useful for seeing in dim ...

Up until recently, researchers have thought that when light struck the retina, rods and cones were the only two kinds of cells that react. Recent discoveries have revealed an entirely new type of ...

Rods and cones are found in the retina of the human eye. The rods -- some 120 million -- are more sensitive than the cones, but are not sensitive to color.

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.