Children dilated pupils, usually a few hours to about a month to wear glasses, the time needed with the use of dilated drugs, dilated drugs can be divided into short-acting drugs, medium-acting drugs, long-acting drugs. 1. Short-acting drugs: children for pupil dilation optometry, need to use ciliary muscle paralysis drugs, such as compound tropicamide eye drops, the general effect of the drug will last 4 to 6 hours, so after 4 to 6 hours, the child’s pupils return to normal, children can be equipped with glasses. 2. Medium-acting drugs: Cyclopentolate hydrochloride eye drops belong to medium-acting pupil-dilating drugs, generally can be used for children’s pupil dilation optometry, the effect of this drug will last for about 3 days, generally after 3 days, children can be equipped with glasses. 3. Long-acting drugs: If the patient’s age is small, generally need to use atropine sulfate ophthalmic gel for dilated pupil checking, it takes about a month, the pupil can be restored, the child can wear glasses. It is recommended that children with refractive errors seek timely medical attention to assess their condition and follow the doctor’s instructions for treatment.