1, before ordering the medicine to look at the name of the medicine, if the patient are older, the general patient would have had poor vision to see clearly, it is best to put this eye drops fixed in one place. 2. Wash your own hands before ordering the drops, gently pull the lower eyelids apart when ordering, do not touch the eyes with the bottle of medicine, order to the conjunctival sac of the eye, that is, between the lower eyelids and the eyeball. The purpose is to let the eye drops work fully inside the eyes and not to flow outside through the nasal cavity. If you can’t order it yourself, you need a family member to tilt the patient’s head up and continue to press it afterwards. 3, on time point, this on time means that the point when the point, should not point when not point, do not take the liberty to say, I should have ordered twice a day, I want to get better faster, an hour on the point once, that is wrong. Some drugs are enough to be ordered twice a day, and there is this meaning of ordering on time. In addition, the medication should be ordered at a time, for example, twice a day, some people say I am very busy, I wake up in the morning and order, and go to bed at night, and wrong, because some drugs are not useful to order before going to bed, the second point should also be in the afternoon, and the first point interval of 8 to 12 hours. Some drugs must be ordered before going to bed, such as prostaglandin-type drugs must be ordered before going to bed, to figure out what drugs and when to order this drug to play the greatest role. There are also two or three kinds of drugs to point, one after the eyes closed rest for more than five minutes, and then point the second drug, if together with the point in the waste. 4, drug preservation is also very important, some drugs can not be placed on the windowsill where the sun can be seen, it will fail, some drugs to be put in the refrigerator to freeze, to be clear, before using the drug instructions to read, some diseases can not use this drug, do not look at the small eye drops, side effects are still very big.