Eye

• Cornea = transparent layer of the eye that refracts light to focus on the retina
• Pupil = the hole in the middle of the iris which controls the quantity of light entering the eye
• Aqueous Humour = transparent fluid which maintains the shape of the eyeball and focuses light into the eye
• Iris = the colored part of the eye that controls the size of the pupil
• Suspensory Ligament = strong fibres that holds the lens in place
• Ciliary Muscle = contracts and relaxes to change the thickness of the eye lens
• Eye lens = transparent and elastic convex lens that refracts light to focus it on the retina
• Conjuctiva = transparent membrane that protects the front part of the sclera
• Sclera = strong layer that maintains the shape of the eye and protects the eye from injury
• Vitreous Humour = transparent jelly-like substance that maintains the shape of the eyeball and focuses light on the retina
• Choroid = black layer that prevents reflection of light in the eye and supplies oxygen and nutrients to the eye
• Blind Spot = part of the retina which is not sensitive to light ( no photoreceptors) and an exit point for all optic nerve fibres
• Retina = layer containing photoreceptors, which detects light and produces nerve impulses
• Yellow Spot = part of retina which is most sensitive to light (has many photoreceptors)
• Optic Nerve = the nerve that carries impulses from the retina to the brain