The macula has the highest concentration of cones in the eye. Most of the detailed vision comes through the work of the macula.Know More
The eye gives vision to the body and is a combination of nerves, cells and fluids. The optic nerve is the eye's largest sensory nerve and it carries electrical impulses to the eye. The choroid is the largest blood vessel responsible for carrying blood to the retina.
The following parts of the eye are visible when looking at it:
The eye uses the cornea to refract light and it accounts for most of the eye's ability to focus. The lens provides the remaining focusing power as it directs light to the retina, which is the layer of light-sensitive cells at the back of the eye. The retina is responsible for converting light into electrochemical signals that go to the brain. The retina contains receptor cells called rods and cones, which are necessary for night vision, acuity and color perception.
In the center of the retina is a small depression called the fovea centralis, or macula. The macula contains the highest concentration of cones and it is where the eye has the sharpest vision.Learn more about Human Anatomy
The part of the eye that light waves pass through first is the cornea, a transparent layer of the eyeball. The cornea bends light waves coming into the eye before they reach the lens, according to the American Optometric Association.Full Answer >
The fovea centralis is a depression-like area located at the centermost part of the retina of the eye. Only cone cells are located in the fovea centralis, and each cone cell is attached to a ganglion cell. This dip or depression in the smallest part of the retina is the location in which the most acute vision takes place.Full Answer >
The white part of the eye is called the sclera, St. Luke's Cataract & Laser Institute explains. The sclera is made of tissue that is tough and opaque so that it can protect the eye. The optic nerve is attached to the back of the sclera.Full Answer >
An epiretinal membrane over the macular area means that scar tissue has developed of the macula of the eye, according to the National Institutes of Health. The macula is the center of the retina and is responsible for the sharpness of a person's central vision.Full Answer >