IOP: intraocular pressure; EOM: extraocular movement; IIH: idiopathic intracranial hypertension. * Eccentric pupil, prolapse of uvea or other structure, decreased anterior chamber size, and/or tenting of cornea/sclera. ¶ Injuries anterior and posterior to the lens often coexist. Δ Causes include rapidly expanding infectious, vascular, or neoplastic masses.