Anterior nongranulomatous uveitis: a seasonal variation.

A review of 348 consecutive cases of nontraumatic uveitis seen in the Wills Eye Hospital emergency room between Jan 1, 1981, and Dec 31, 1981, was conducted. Patients who presented with an initial episode of anterior nongranulomatous uveitis, without obvious etiology by history or clinical examination, were further evaluated for epidemiologic clues suggestive of a pathogenesis. This group consisted of 121 patients. A statistical analysis for seasonal variation suggested an increased occurrence during the summer months (p .01).