Clinical Characteristics of Ocular Graft-Versus-Host Disease Associated With Tapering of Immunosuppressive Drugs.

oGVHD frequently emerges during the late phase of systemic immunosuppression tapering, with many cases occurring after complete discontinuation or reduction to monotherapy. Given the high incidence within the first posttransplant year and the occurrence of isolated ocular disease, these findings support routine ophthalmic evaluation for all allo-HSCT recipients as systemic immunosuppression is withdrawn. Early detection and timely escalation of topical therapy are essential to prevent ocular surface damage while permitting safe continuation of systemic tapering.