It’s the eye’s first defense against foreign objects and injury. As the cornea must remain clear to refract light, it does not have any blood vessels. Although our eyes can only see in two dimensions, we are able to determine distances and depth inside our three-dimensional world. This is because the mind interprets both slightly…
Section of your nervous system, the retinas sense brightness and switch it into electrical impulses or neural signals. Retinal membrane contains an area called macula, that is yellow in color. The biggest market of macula is called fovea, which contains the highest concentration of cone cells. The area of the graphic projected on the fovea…
There are as many as one million neural pathways from the rods and cones to the brain. This system of nerve tissues is bundled together to create the optic nerve on the back again of the eyeball. As the eye ages, certain modifications occur which can be attributed solely to growing older. Many of these…