Acute blinding sinusitis.
Sinusitis may produce blindness, and deterioration in visual acuity is a strong indication for urgent admission and possible surgery.
D000293:Adolescent; D001766:Blindness / Q000209:etiology*; D006801:Humans; D008297:Male; D012852:Sinusitis / Q000150:complications*; D013997:Time Factors; D014792:Visual Acuity