Relier Pairs The eyesVersion en ligne The eyes par Alba Castellano Navarro 1 Cristaline lens 2 Optic nerve 3 Eyelashes 4 Pupil 5 Aqueous humour 6 Eyebrows 7 Fovea 8 Eyelid 9 Sclera 10 Iris 11 Retina 12 Lacrimal glands 13 Vitreous humour 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. It is the hole in the center of the iris. Is an area of the retina with many cones. It is responsible for sharp vision. Produce tears, which clean the eye and keep it moist. They also destroy bacteria. It is transparent, gelatinous fluid filling the eyeball. It is an elastic, transparent, biconvex structure behind the iris. It transmits the information to the brain. It is the internal layer of the eyeball that contains photoreceptor cells called cones and rods. Is the opaque, white outer layer. The front part (cornea) is transparent. 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. Is a circular structure. Its colour varies from person to person. It is a transparent fluid between the cornea and the crystalline lens.