Clinical exam (Eye Exam)
PERRL, EOMI, visual fields
Assess for diplopia
Visual acuity
Intraocular pressure measurement (see Tono-Pen use)
CT with maxillofacial cuts
Consider CTA or MRI/MRV
PERRL, EOMI, visual fields
Assess for diplopia
Visual acuity
Intraocular pressure measurement (see Tono-Pen use)
Proptosis
Graves' disease 
Periorbital swelling
Cavernous sinus thrombosis
Subconjunctival hemorrhage
Carotid-cavernous fistula
Ocular palsy
Orbital cellulitis