They reported that “ocular syphilis led to the HIV diagnosis in 52% of cases, posterior uveitis was significantly more common in individuals with CD4 cell count < 200 cells/mm3, and 97% of patients with visual impairment improved following intravenous penicillin or ceftriaxone.” In our analysis, the mean CD4 cell count ranged from 122 to 504 cells/mm3, supporting the recommendations that most patients with syphilitic uveitis and HIV coinfection should be treated according to the recommendations for HIV-negative patients (e.g., as immunocompetent patients) and should be monitored closely [1]. Here, CD4 is linked to posterior uveitis.