Inspect of lid, cornea, sclera
Slit lamp exam
Intraocular pressure
After exclusion of Globe Rupture
Bloodwork (CBC, BMP, ESR, CRP) only if considering endogenous<unk> 
Ocular ultrasound to look for alternative diagnosis
After exclusion of Globe Rupture
After exclusion of Globe Rupture
After exclusion of Globe Rupture
Endophthalmitis
Nontraumatic
Optic neuritis
Acute angle-closure glaucoma^
Sympathetic ophthalmia
Anterior uveitis
Orbital cellulitis
Conjunctivitis