Applications and sterility of autologous serum eye drops.

Severe dry eye syndrome can adversely affect a patient's quality of life. When preservative-free artificial tear solutions are not adequate to reduce symptons, the patient's own serum can be compounded into eye drops that improve the ocular surface. The aim of our study was to test the sterility of autologous serum eye drops in refrigerator conditions for up to 30 days and in freezer conditions for up to 180 days. It was determined that sterility was maintained throughout this period.