SURVEY OF PATIENT KNOWLEDGE REGARDING SAFETY WHEN USING EYE DROPS AND OINTMENTS AMONG OUTPATIENTS COVERED BY HEALTH INSURANCE AT CLINIC 2D NGUYEN VIET XUAN – HANOI EYE HOSPITAL . YHCĐ. 2026;67(CĐ5-NCKH). doi:10.52163/yhc.v67iCD5.5023