The recovery time after pupil dilation depends on the dilation medication used. There are two types of pupil-dilating medications: the first is a short-acting ciliary muscle paralyzing agent, such as tropicamide eye drops, which maintains its pupil-dilating effect for about 4-6 hours, so the pupil can return to normal after 6 hours, and you can live a normal life, including writing homework. The second is a long-acting pupil-dilating drug, usually atropine sulfate ophthalmic gel, which has a very long pupil-dilating effect, usually around three weeks, and is generally used for pupil dilatation in children within eight years of age, so within three weeks after eye dilatation, try to avoid close eye use, including writing homework, and only after three weeks the pupil gradually returns to normal, and then resume normal life.