3 Clinical Trials for Various Conditions
The purpose of this study is to collect samples from the surface of eyelids to try to grow and identify bacteria or fungus that might be present, and to try to understand why people have dry eye symptoms.
In this study, the investigators seek to determine the effect of antibiotic use post-surgery on antimicrobial resistance. The investigators will be studying adults (aged 18 or older) who will undergo eye surgery at University of California, San Francisco (UCSF). We seek to gain a better understanding of how antibiotic use during the perioperative period influences local and systemic antibiotic resistance at the individual level.
The investigators seek to characterize the identity of all microorganisms residing on the eye's surface (conjunctiva) in healthy eyes and those with dry eye syndrome, using a combination of analyses. Dry eye disease is thought to have an inflammatory basis and in the vast majority of cases the cause of the chronic inflammatory condition is unknown.