Everyone has a love of beauty, and now more and more people are wearing contacts. It is not recommended to wear contacts overnight. Because contacts are like soft contact lenses that need to be placed on the corneal surface of the eye, how the material, breathability, and quality of the contacts will have a direct impact on the eyes. Contacts are more colorful than regular contact lenses, so there are bound to be more dyes in them. These dyes will not cause the release of molecules over time, which is very much related to the quality of contact lenses. If you wear contacts to bed, they are sure to be in your eyes for a long time: first, causing a long period of oxygen deprivation in the cornea. Secondly, if you wear them for a long time, the dye release will also bring chemical and foreign body damage to your eyes. Because contacts, as contact lenses for the eyes, have entered the list of medical devices, it is important to strengthen their management. Even if you wear quality contacts, it is recommended to minimize the time you wear them, and not to wear them at night overnight. The contacts should be cleaned regularly to maintain good hygiene habits, and the contacts have a limited number of years of use, so wear them according to their expiration date and be sure to throw them away when they are ready.