Inflamed eye (red)

• Acute glaucoma
• Uveitis
• Keratitis (corneal ulcer or inflammation), e.g., herpes simplex
• Conjunctivitis (blurry)

Uninflamed eye

• Retinal detachment
• Central retinal vein occlusion
• Central retinal artery occlusion
• Vitreous hemorrhage
• Macular degeneration (exudative)
• Anterior ischemic optic neuropathy, e.g., temporal (giant cell) arteritis
• Optic neuritis, e.g., multiple sclerosis
• Papilledema
• Hyperglycemia (blurry; subacute)
• Polycythemia vera (blurry; subacute)
• Trauma
• Conversion disorder
• Episodic: amaurosis fugax (TIA), ophthalmic migraine
• Diplopia

• Chronic visual loss
• Diplopia or ophthalmoplegia
• Amaurosis fugax
• Bitemporal hemianopsia
• Ptosis
• Eye pain