Autologous Serum Eye Drops "ASEDs" also known as "Serum Tears" and "AS Tears" Serum Tears are eye drops made from a patient's own blood serum. Blood is drawn then processed to remove blood cells and clotting factors leaving behind a clear amber blood serum rich in nutrients. This serum is diluted with a sterile, preservative-free ... Read moreThe post What are Autologous Serum Eye Drops or "Serum Tears"? appeared first on Phleetbo.