In North America, approximately 25% of mycobacterial infections present with extrapulmonary manifestations, and only a fraction of those patients present with ocular tuberculosis (TB).1 Hematogenous spread of TB to the eye is more likely to occur than a primary exogenous infection and most commonly affects the uvea due to its high vascular content.2 The diagnosis of ocular TB is often presumptive and based on the presence of characteristic clinical features in conjunction with imaging and laboratory investigations.
In North America, approximately 25% of mycobacterial infections present with extrapulmonary manifestations, and only a fraction of those patients present with ocular tuberculosis (TB).1 Hematogenous spread of TB to the eye is more likely to occur than a primary exogenous infection and most commonly affects the uvea due to its high vascular content.2 The diagnosis of ocular TB is often presumptive and based on the presence of characteristic clinical features in conjunction with imaging and laboratory investigations.