^ Zidovudine Nucleoside analogue drug used as anti-HIV drug. Known to be associated with retinal toxicity. See also Suramin Sodium.
^ Zinn and Haller, circle of Peripapillary ring of arterioles from the short posterior ciliary arteries which when present may supply the optic nerve head at the lamina cribrosa.
Wikipedia Short posterior cilary arteries
Wikipedia Annulus of Zinn
^ Zinn, annulus of Annular tendon or common tendinous ring. A ring of fibrous tissue surrounding the optic nerve at its entrance at the apex of the orbit
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