Observational Cohort Study on Ocular Chronic Graft-Versus-Host Disease

This study is a multicenter, prospective, observational cohort study designed to enroll a total of 340 patients undergoing allogeneic hematopoietic stem cell transplantation. Through comprehensive evaluations by hematology departments, ophthalmology departments, and patient-reported outcomes, the study aims to assess patient-reported outcomes, overall incidence, risk factors, and other clinical outcomes in patients with chronic ocular graft-versus-host disease following allogeneic hematopoietic stem cell transplantation.