Subconjuntival hemorrhage | Associated with trauma, coagulopathy, hypertension. | Unilateral, sharply circumscribed | Unaffected | None | Unaffected | Clear |
Blepharitis | Acute/chronic inflammation of eyelid. | Diffuse | Unaffected | Foreign body sensation | Unaffected | Clear |
Epislceritis | Recurrent, self-limited episodes, possible autoimmune association. | Engorged, radially-oriented vessels | Unaffected | Mild | Unaffected | Clear |
Scleritis | Vascular or connective tissue disease. | Focal or diffuse, pink sclera | Unaffected | Moderate | Reduced | Clear |
Acute angle-closure glaucoma | Mydriasis leading to decreased outflow of aqueous humor. | Circumcorneal injection | Semi-dilated | Severe | Reduced | Hazy |
Acute anterior uveitis | Inflammation of iris or ciliary body. | Circumcorneal injection | Constricted | Moderate | Reduced | Hazy |
Keratitis | Inflammation of corneal epithelium. Caused by infection, contact lenses, UV exposure. | Multiple punctate erosions, stain with fluorescein | Unaffected | Moderate | Reduced | Hazy |