Final answer:
The retina is the part of the eye where light is focused and it connects to the optic nerve, transferring signals to the brain. It contains photoreceptors, and the central fovea is responsible for sharp vision. The cornea, pupil, and lens work together to focus light onto the retina.
Step-by-step explanation:
The part of the eye where light is focused, and nerve endings connect to the optic nerve and the brain, is known as the retina. The retina is a thin layer of tissue at the back of the eye that contains millions of light-sensitive cells called photoreceptors. These cells, which include rods and cones, convert the light into electrical signals.
To provide a complete understanding, the process of focused vision begins with light entering the eye through the cornea, which is the clear, protective outer layer. It then passes through the pupil, the opening whose size is controlled by the iris. Behind the pupil is the lens of the eye, which adjusts its power to focus the light, depending on the object's distance, onto the retina.