Study Status: Enrolling by invitation
Recruit Status: Enrolling by invitation
Study Type: Observational
Official Title: Comparing the Quality of Topical Autologous Serum in Different Etiologies of Dry Eye Syndrome
Brief Summary: Human autologous serum is commonly used in the treatment of dry eye disease. However, different patients may have different effect with autologous serum treatment. We would like to find if different autologous serum had different component of cytokines in different etiologies of dry eye.