When ordering eye drops, the patient takes a sitting or supine position, tilts the head back, looks upward, gently pulls the lower eyelid downward with the index finger, puts the eye drops into the fully exposed conjunctival sac below, then gently lifts the upper eyelid and closes the eyes for 1-2 minutes, while using the finger to compress the tear sac area at the root of the nose for 1-2 minutes to minimize the inflow of eye drops into the nasal cavity and prevent the eye drops from being absorbed by the nasal mucosa causing poisoning. Precautions when ordering eye drops: 1. Wash your hands before ordering eye drops and wipe the eye secretions clean with a cotton swab. 2, before ordering eye drops must first carefully read the label on the bottle of eye drops, check the name of the drug, do not order the wrong drug. (It is not uncommon for clinical cases to mistakenly treat foot odor as eye drops to point eyes.) 3, point eye drops, eye drops bottle mouth not too far from the eye, so as not to splash; also not too close, so as not to contact with the eyelids or eyelashes, resulting in the contamination of the entire bottle of eye drops. Generally speaking, eye drops bottle mouth and eyes 1-2 cm away from each other can be. 4, do not put eye drops directly on the black eye (cornea), because corneal perception is very sensitive, such as drops directly on the cornea, will immediately produce a closed-eye reaction, most of the eye drops into the point squeezed out, affecting the effectiveness of treatment. 5, such as treatment requires the use of more than 2 kinds of eye drops at the same time, should first drop watery eye drops, the texture of the more viscous eye drops should be placed in the last point. Each eye drop should be used at an interval of about 5 minutes between each other, and 1-2 drops of each eye drop can be used, without more.