Mom and dad should not buy children’s eye drops at the pharmacy on their own, but should first go to a regular hospital for an examination, and then buy suitable eye drops for preschoolers according to the doctor’s proposal. The choice of children’s eye drops 1, preservative problem. Many eye drops have preservatives or preservatives in order to keep them for a long time. For children who use eye drops for a long time, preservatives have a destructive effect on the tear film of the eye surface, causing corneal spotting and dry eyes, so try to use eye drops without preservatives for children who use eye drops for a long time. 2, drug toxicity problems. Use chloramphenicol eye drops with caution for children, because it is easy to cause blood system problems for sensitive children. For antiviral eye drops, because of the corneal toxicity effect, it is recommended to stop the drug in time after the symptoms are controlled. Glucocorticoid eye drops have the effect of raising IOP and are recommended for short-term use. In addition, low-concentration hormone eye drops (such as flumetone) have low side effects, both anti-inflammatory and non-significant effects on raising IOP. 3, antimicrobial resistance issues. Bacterial infections such as conjunctivitis and keratitis can be effectively prevented by doing bacterial culture and drug sensitivity tests before treatment. 4. The effect of dilating agents on intraocular pressure in children. In general, the diseases that cause elevated intraocular pressure with pupil dilators are closed-angle glaucoma. Glaucoma in children and adolescents is often open-angle, which has a limited effect on raising intraocular pressure, so there is no cause for alarm. 5. Age of use. Generally used in strict accordance with the instructions. In special cases, the doctor to the child’s parents to analyze the advantages and disadvantages of using a drug, careful use of a particular eye drops. Such as anti-allergy eye drops, some regulations in the 2 or 3 years of age or older, if the child’s allergy symptoms are particularly heavy, the use of other drugs have poor results, you can use a certain eye drug, but to closely observe. The use of children’s eye drops ophthalmic topical drugs are drops and eye ointment two types, drops are generally aqueous solution, but also oil solution (such as cod liver oil drops) and suspension; eye ointment has a certain protective and lubricating effect, the drug stays in the eye for a longer time, the drug effect is more durable. Be sure to strictly check the name of the drug, concentration, eye before ordering, do not make a mistake. The first thing you should do is to relieve your child’s psychological fears and obtain his or her cooperation. When applying eye drops, let the child take a supine or sitting position with the head slightly tilted back and the eyes looking upward. The operator uses the left thumb or cotton swab to gently open the child’s lower lid to expose the lower conjunctival sac, and the right hand holds the eye dropper or bottle to place the drops into the conjunctival sac. If there is secretion or eye ointment in the eye, it should be wiped away with a sterile cotton swab before applying eye drops. When applying eye ointment, after exposing the lower conjunctival sac, hold the eye ointment bottle and squeeze a rice-sized amount of medication directly into the conjunctival sac. Keep the patient’s eyes closed for 2 to 3 minutes to help the ointment dissolve and distribute in the conjunctival sac, and wipe the ointment from the lid margin and eyelashes with a cotton swab or cotton ball. When using eye drops for children, mothers and fathers should have the patience to encourage their children to cooperate.