Novel diagnostic method for B cell vitreoretinal lymphoma by identification of regulatory T cells and PD-1+ cytotoxic T lymphocytes in the vitreous via flow cytometry

Aims
To investigate the significance of regulatory T cells (Tregs) and programmed cell death 1 (PD-1)+ cytotoxic T lymphocytes (CTLs) in the vitreous of patients with vitreoretinal lymphoma (VRL) and uveitis.

Methods
This study involved 51 patients w…