Birdshot Retinochoroidopathy: Ocular Complications and Visual Impairment

To describe the incidence of vision loss and of ocular complications attributable to birdshot retinochoroidopathy and to describe the association between therapy and the incidence thereof. Retrospective cohort study. setting: Single-center, academic practice. study population: Forty patients with birdshot retinochoroidopathy were evaluated from January 1984 through March 2004. observation procedure: Demographic and clinical information on patients diagnosed with birdshot retinochoroidopathy was collected. main outcome measures: Visual acuity and visual field loss; ocular complications including cystoid macular edema (CME). In affected eyes, the frequencies of vision loss to 20/50 or worse and to 20/200 or worse and of CME at presentation were 33%, 13%, and 20%, respectively. Patients who presented with a duration of disease of ≥ 30 months had higher frequencies of visual impairment to 20/50 or worse (68% vs 32%; P = .004) and to 20/200 or worse (32% vs 9%; P = .01), and had a higher frequency of CME (38% vs 14%; P = .02) than patients who presented with a duration of disease