2. What is the function of the retina? a) Focuses light on the cornea b) Converts light into neural signals c) "Controls the shape of the lens d) Protects the eye from debris.

The correct answer is b) Converts light into neural signals.<br /><br />The retina is a thin layer of tissue located at the back of the eye. It contains photoreceptor cells that are sensitive to light and play a crucial role in vision. The primary function of the retina is to convert light into neural signals that can be transmitted to the brain for visual processing.<br /><br />When light enters the eye, it passes through the cornea, pupil, and lens, which focus the light onto the retina. The photoreceptor cells in the retina, known as rods and cones, detect the light and convert it into electrical signals. These signals are then transmitted through the optic nerve to the brain, where they are processed and interpreted as visual images.<br /><br />Option a) Focuses light on the cornea is incorrect because the cornea is responsible for focusing light onto the retina, not the retina itself.<br /><br />Option c) Controls the shape of the lens is incorrect because the lens shape is controlled by the ciliary muscles and the zonular fibers, not the retina.<br /><br />Option d) Protects the eye from debris is incorrect because the cornea and eyelashes are responsible for protecting the eye from debris, not the retina.