Matching Pairs The eyesOnline version The eyes by Alba Castellano Navarro 1 Retina 2 Eyebrows 3 Sclera 4 Fovea 5 Aqueous humour 6 Optic nerve 7 Pupil 8 Eyelid 9 Iris 10 Cristaline lens 11 Lacrimal glands 12 Eyelashes 13 Vitreous humour It transmits the information to the brain. Are hairs that stop sweat from entering the eye. Are hairs that grow out of the eyelids. They limit access to light and stop particles from entering the eyes. Are folds of skin that are opened and closed by the eye orbit muscles. They prevent the eyeball from drying out and stop particles from entering. It is a transparent fluid between the cornea and the crystalline lens. It is the hole in the center of the iris. It is the internal layer of the eyeball that contains photoreceptor cells called cones and rods. It is transparent, gelatinous fluid filling the eyeball. Is an area of the retina with many cones. It is responsible for sharp vision. Is a circular structure. Its colour varies from person to person. Produce tears, which clean the eye and keep it moist. They also destroy bacteria. It is an elastic, transparent, biconvex structure behind the iris. Is the opaque, white outer layer. The front part (cornea) is transparent.
