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Anatomic Model Of The Human Right Eye Lateral View Of A Median Section. The Eyeball Is Composed Of An Outer Fibrous Coat, Consisting Of The Sclera A White Opaque Tunic And, In Front, The Cornea, A Transparent Membrane Allowing To Focus The Image. The Middle Vascular Tunique, The Uvea, Consists Anteriorly Of The Ciliary Body In Red, Muscle Governing The Shape Of The Lens, And The Iris In Light Blue, A Group Of Muscles Controling The Opening Of The Pupil Black Aperture. The Retina In Purple Covers The Inner Wall Of The Eyeball; Its Vascularization Can Be Investigated By An Ophtalmoscope. The Vitreous Space Has Been Withdrawn See Picture 1150405 In Order To Show The Retinal Pigment Epithelium In Black Delimited By The Ora Serrata, The Scalloped Anterior Margin Of The Retina. Leading At The Optic Disk Level, The Central Artery In Red And Vein In Blue Of Retina Transit Into The Optic Nerve In White, Transmitting The Visual Data To The Brain. The Inferior Rectus Muscle In Red Allow To Lower The Look. (Photo By BSIP/UIG Via Getty Images)