As the number of people with myopia continues to increase, the number of people wearing contact lenses is also increasing rapidly. Compared to frames, contact lenses have the advantage of a wider field of vision and higher fidelity, but it is also necessary to pay attention to the eye hygiene of contact lenses, which can lead to irreversible eye damage if not worn properly. You need to pay attention to the following matters. 1, control the wearing time. The first time you wear contact lenses, you need to pay attention to the eyes of the external contact lenses have a gradual adaptation process. The first day to control within 4 hours, in a week gradually extended to 7? 8 hours. If there is discomfort during the period, should be taken off at any time. 2, pay attention to wearing hygiene. Contact lenses have relatively high requirements for hygiene. Therefore, before wearing them, you should wash your hands, cut your nails, and look at the front and back before wearing them. 3, to prevent damage to the cornea. The cornea has no distribution of nerves and blood vessels, determining the precious and non-renewable nature of the cornea, so in order to prevent corneal damage, when the eye has inflammation or clearly suffering from eye diseases that can not wear contact lenses, resolutely do not wear. 4, there is a delicate selection. The same contact lenses, there are annual, semi-annual, quarterly, monthly, weekly and daily disposable. In terms of eye hygiene, the shorter the cycle, the better for eye hygiene. Therefore, when conditions permit, it is recommended to choose a style between quarterly and daily disposable. 5, clear age limit. Contact lenses are adult versions, not children’s versions. Therefore, contact lenses are only suitable for people of high school graduate age and above. Therefore, students who are still in high school and below, it is recommended that there is no rush to wear contact lenses, daily wear to frame glasses is better.