Medical illustration of an anterior (front) view of the human eye, showing the iris, pupil, sclera, and conjunctiva. --- Image by © Visuals Unlimited/Corbis
Medical illustrations showing the anatomy of the human eye from a sagittal (cut-away) view and an anterior (front) view. Labeled items on the eyeball include the cornea, iris, pupil, lens, sclera, ciliary zonular fibers, canal of Schlemm, bulbar conjunctiva, inferior rectus muscle, superior rectus muscle, inferior oblique muscle, macula (with fovea centralis) optic nerve, optic disc, retina, retinal vessels and caruncula lacrimalis, or lacrimal caruncle. --- Image by © Visuals Unlimited/Corbis
Woman's eye --- Image by © Science Photo Library/Corbis
02 Apr 2012 --- Grey eye. Computer artwork of a close-up of the iris and pupil of an eye. The iris, a coloured muscular ring, regulates the amount of light that enters the eye through the pupil (black). --- Image by © Pasieka/Science Photo Library/Corbis
Eye. Computer artwork of a close-up of a contracted iris and pupil of an eye. The iris, a coloured muscular ring, regulates the amount of light that enters the eye through the pupil (black). .
03 Apr 2012 --- Blue eye. Computer artwork of a close-up of the iris and pupil of an eye. The iris, a coloured muscular ring, regulates the amount of light that enters the eye through the pupil (black). --- Image by © Pasieka/Science Photo Library/Corbis
02 Apr 2012 --- Green eye. Computer artwork of a close-up of the iris and pupil of an eye. The iris, a coloured muscular ring, regulates the amount of light that enters the eye through the pupil (black). --- Image by © Pasieka/Science Photo Library/Corbis
01 Apr 2013 --- Biomedical illustration of an intraocular lens (IOL) being implanted in the eye to treat cataracts or myopia. --- Image by © Nucleus Medical Media/Visuals Unlimited/Corbis
Eye Illustration --- Image by © Found Image Press/Corbis
Minnesota, USA --- Gray Wolf --- Image by © Frank Lukasseck/Corbis
Eye. Computer artwork of a close-up of the iris and pupil of an eye. The iris, a coloured muscular ring, regulates the amount of light that enters the eye through the pupil (black). . --- Image by © PASIEKA/Science Photo Library/Corbis
Teenage girl's eye. --- Image by © IAN HOOTON/Science Photo Library/Corbis
Woman's eye --- Image by © Science Photo Library/Corbis
02 Apr 2012 --- Brown eye. Computer artwork of a close-up of the iris and pupil of an eye. The iris, a coloured muscular ring, regulates the amount of light that enters the eye through the pupil (black). --- Image by © Pasieka/Science Photo Library/Corbis
Grey eye. Computer artwork of a close-up of the iris and pupil of an eye. The iris, a coloured muscular ring, regulates the amount of light that enters the eye through the pupil (black).
02 Apr 2012 --- Blue eye. Computer artwork of a close-up of the iris and pupil of an eye. The iris, a coloured muscular ring, regulates the amount of light that enters the eye through the pupil (black). --- Image by © Pasieka/Science Photo Library/Corbis
24 Aug 2011 --- Dissected eye. This anatomical artwork is figure 1, plate 78 from volume 3 (1844) of 'Traite complet de l'anatomie de l'homme' (1831-1854). This 8-volume anatomy atlas was produced by the French physician and anatomist Jean-Baptiste Marc Bourgery (1797-1849). The illustrations were by Nicolas-Henri Jacob (1781-1871). --- Image by © Science Photo Library/Science Photo Library/Corbis
24 Aug 2011 --- Eye anatomy, front view. This anatomical artwork is figure 2, plate 75 from volume 3 (1844) of 'Traite complet de l'anatomie de l'homme' (1831-1854). This 8-volume anatomy atlas was produced by the French physician and anatomist Jean-Baptiste Marc Bourgery (1797-1849). The illustrations were by Nicolas-Henri Jacob (1781-1871). --- Image by © Science Photo Library/Science Photo Library/Corbis
Black Wolf Snarling in Snow --- Image by © DLILLC/Corbis
08 Feb 2007, Jokkmokk, Sweden --- Snarling Gray Wolf --- Image by © Peter Adams/Corbis