For most patients, distance and near vision is good the next day, and further improves over the following weeks.
Your old glasses will no longer be effective immediately in most patients but glasses can still be worn if preferred until vision is satisfactory.
Clinical data suggests that results are best when both eyes have multifocal lenses implanted so those having the eyes done on different days or weeks apart may need to wait until the second eye has been done to get the best results due to interference from the untreated eye.