Clinical Research Directory

Inclusion Criteria: * Adult patients aged 19 years or older. * Patients who are currently using or scheduled to use 0.5% moxifloxacin eye drops for ophthalmic surgery (control group) or for ocular surface diseases (patient group: dry eye, Sjogren's syndrome, Stevens-Johnson syndrome, graft versus host disease). * Patients who have agreed to understand and comply with the clinical trial protocol's plans for medical examinations and follow-up observations. Exclusion Criteria: * Pregnant or planning to become pregnant, and lactating women. * Patients with intellectual disabilities and other psychiatric disorders who, at the discretion of the investigator, are deemed ineligible for participation in the clinical trial. * Patients with hypersensitivity reactions to 0.5% moxifloxacin eye drops, or patients for whom administration is contraindicated. * Patients for whom participation in the study is deemed impractical based on the judgment of other medical staff and neutral observers (excluding specified selection/exclusion criteria, based on medical reasons, ethical considerations, low compliance, and understanding of the study).