Find the odd one out.
Cornea, Cochlea, Lens, Optic nerve
Cochlea
Cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber. Lens is the part of the eye that focuses light through the vitreous humour, which is a clear gel-like substance that fills the back of the eye and supports the retina. A type of cranial nerves, consisting of sensory fibres conduct impulses from the retina to the brain. Whereas, cochlea is a portion of the inner ear that looks like a snail shell. The cochlea receives sound in the form of vibrations, which cause the cilia to move.