Topical anesthesia with proparacaine, as opposed to tetracaine which has bacteriostatic effects, limiting culture results
Culture and gram stain of corneal ulcer edges, eyelids, conjunctiva, contact lenses
Ultrasound to assess for signs of endophthalmitis and other pathologies
Bacterial keratitis
Iritis
Ultraviolet keratitis
Conjunctivitis
Herpes simplex keratitis
Glaucoma
Bacterial conjunctivitis
UV keratitis