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• lens is the structure which refracts light to focus it on the retina.
• zonule fibers are the structures which anchor the lens to the ciliary body.
• retina is the neurosensory layer of the eye.
• ora serrata is the margin between the retina and the ciliary body.
• vitreous body is the gelatinous substance which fills the space posterior to the lens and ciliary body and contributes to maintenance of the shape of the eye.
• optic nerve [tip of probe] is the cranial nerve which carries special sensory fibers from the eye to the brain.

Links and References:
Grant's: 7.57
Netter: 82, 83, 85
Rohen/Yokochi: 129