Condition	Characteristics
Acute angle-closure glaucoma	Shallow anterior chamber, elevated intraocular pressure, and edema of the corneal epithelium
Bacterial conjunctivitis	Purulent discharge, conjunctival redness, and edema of the ocular conjunctiva
Episcleritis	Sectorial or rarely diffuse redness caused by engorgement of episcleral vessels, large vessels seen beneath the conjunctiva
Endophthalmitis	Progressive and severe pain, decreased vision, eyelid swelling, chemosis, sometimes hypopyon, anterior chamber cells and flare, blurring of red reflex
Anterior uveitis	Red and painful eye, decreased vision, tearing, photophobia, cells and flare confined to the anterior chamber