The optic nerve head is the point where the optic nerve exits the eye and connects to the brain. It is located at the back of the eye and is responsible for transmitting visual information from the retina to the brain. The optic nerve head contains nerve fibers that carry signals about what we see. This area is also known as the optic disc and can be examined during an eye exam. Changes in the appearance of the optic nerve head can indicate various eye conditions, such as glaucoma or papilledema, which may require further evaluation and treatment.