When contact lenses are dry, eye drops can be used to moisturize the eyes, mainly artificial tear-type eye drops, including sodium vitreous oxide drops Tearran eye drops, etc. Use contact lens precautions are as follows: 1, when dropping eye drops need to take off the contact lens in order to moisten the eyes and relieve dryness; 2, need to pay attention to contact lenses do not wear overnight, and rest, sleep is best to take off, do not wear contact lenses for more than 8 hours a day; 3, usually pay attention to rest, reduce the use of electronic products, do not turn off the lights at night to look at the phone; 4, when using contact lenses need to ensure The care solution is clean, and the care solution in the lens case should be replaced regularly during the immersion process.