1, eye drops after opening, it is best to use up within a month. More than a month to stop using; 2, when ordering a variety of eye drops, after ordering a drug interval of 5-10 minutes before ordering another; 3, eye drops dosage: once a drop can be ordered, point more waste; 4, general daytime eye drops, night before bed drops of eye ointment; 5, hormonal drugs such as dianbixu, dianshu and other drugs do not long-term application, long-term application will appear glaucoma and cataracts, etc. Complications can lead to blindness. Do not buy hormonal drugs on your own. Need to be tested under the doctor’s medication, if it is iridocyclitis, uveitis-type diseases, hormones need to slowly stop, stop too quickly will cause inflammation rebound, not easy to control; 6, there is no pregnant women proved safe eye drops, in the application must be compressed tear duct, which is between the inner corner of the eye and the bridge of the nose, to prevent drugs into the nasolacrimal duct is absorbed by the body 7, dry eye patients with long-term application of tear supplement class of drugs 8. When children use drugs such as atropine, they must also compress the tear duct to prevent the drug from being absorbed; 9. Patients who are generally younger than 12 years old (some are under 8 years old now) need atropine to dilate their pupils for optometry, which can make the child unable to see near things for about 10 days and a half months, that is, they cannot read books; 10. Glaucoma patients need long-term medication, so do not stop taking it without permission. Some anti-glaucoma drugs will “drift” after a period of time, that is, may not be able to lower the intraocular pressure, so do not use a drug to the end, you need to change the drug or continue to use the drug under the guidance of the doctor according to the situation.