| globe: | subdivided into anterior + posterior segments by lens |
| optic nerve- | |
| sheath complex: | optic nerve surrounded by meningeal sheath as extension from cerebral meninges |
| intraconal space: | orbital fat, ophthalmic a., superior ophthalmic v., nerves I, III, IV, V1, VI |
| conus: | incomplete fenestrated musculofascial system extending from bony orbit to anterior third of globe, consists of extraocular muscles + interconnecting fascia |
| extraconal space: | between muscle cone + bony orbit containing fat, lacrimal gland, lacrimal sac, portion of superior ophthalmic v. |
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