Bacterial uveitis most commonly presents as posterior uveitis. Causative organisms include Treponema pallidum, Mycobacterium tuberculosis, and less frequently, Borrelia burgdorferi and Bartonella species, among others.
Syphilis is reemerging globally and should be considered in the differential diagnosis of every individual with uveitis.
Tuberculous uveitis can arise in the absence of detectable active systemic disease, with the diagnosis being presumptive in most cases.
Ocular involvement occurs in 5%–10% of individuals with cat-scratch disease, and may manifest as neuroretinitis, focal/multifocal retinitis, and, less frequently, Parinaud oculoglandular syndrome.
Excerpted from BCSC 2020-2021 series: Section 9 - Uveitis and Ocular Inflammation. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.