Rare, vision-threatening ophthalmic emergency characterized by an acute elevation of intra-orbital pressure which exceeds the vascular perfusion pressure of the ophthalmic artery.
Most commonly caused by acute<unk>  or facial trauma
Less common causes include local injections,<unk>  infection,<unk>  emphysema, foreign bodies, and spontaneous hemorrhage
Orbital compartment syndrome
Retinal detachment
Orbital fracture
Globe rupture
Labyrinthitis
Endophthalmitis
Orbital cellulitis
Optic nerve decompression