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EXHIBIT ID: EY_A_0005

Normal Anatomy of the Optic Nerve and Eye

Normal anatomy is shown including: Optic nerve, Ophthalmic artery, Optic disc, Retinal arteries, Sclera and Supraorbital artery. When blood flow is reduced, less oxygen gets to the optic nerve and eye. Damage to tissues causes swelling in the region of the optic disc.