The first time you wear glasses you generally feel dizzy and see a little on the bright side, which is usually normal for about a week, and for a few people it may be up to about two weeks. However, if it lasts longer, it should not be, and one should consider whether there is a deficiency in the prescription, or other abnormalities in the regulation or binding function of the eye. The reason why people get dizzy when they first start to wear glasses is that if a person has been nearsighted for a long time, the things he sees are actually blurred compared to normal people, but he takes this blurred state as his normal state. After getting glasses, it is similar to replacing the TV of the past with the HDTV of the present, and there will be a special unrealistic feeling when watching things. This is mainly because the brain has not yet adapted to this very clear image, need to have a process of adaptation, and adapt to this process, it will feel less uncomfortable.