Ethmoiditis is an infection of the ethmoidal cells in the sinuses. These are the air-filled spaces behind the nose and between the eyes.
Ethmoiditis is a type of sinusitis.
Bacteria cause most ethmoid sinus infections. Some types of fungus and viruses can also be involved.
Symptoms usually include a headache between the eyes and a runny nose.
Symptoms of more serious infections can include:
- Vision loss
- Double vision
- Redness or bulging of the eyes
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Borish L. Allergic rhinitis and chronic sinusitis. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 25th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 251.