With the development of time, more and more girls and even boys choose to wear contact lenses or contacts for the sake of beauty or work. Contact lenses are medically known as corneal contact lenses, which are aesthetically pleasing and convenient compared to traditional frames. Functionally, contact lenses can eliminate myopia, hyperopia, refractive error, some irregular astigmatism, etc., which are widely used in clinical practice. And the field of vision is wide and easy to move. The creation of contacts is based on the corneal contact lenses, coupled with the design of imitation iris texture, after wearing to make the eyes more radiant, to obtain the young people’s favorite. However, incorrect wearing habits and care can harm the eyes. You should wash your hands well before each time you take and wear them, check that the lenses are not contaminated before you wear them, follow the procedure of cleaning, sterilizing, storing the care solution correctly, handling the lenses carefully, and replacing them in time when they expire or are broken. Usually need to pay attention to eye hygiene, if there is an increase in secretion, friction sensation immediately stop wearing, and promptly consult a doctor. The cornea’s oxygen supply 80% from the air, whether contact lenses or contacts are corneal contact lenses, are worn directly on the surface of the cornea. Due to the absorption of tears by the lens, and the obstruction of tear circulation, often after a period of wear will feel dry eyes. Repeated wear for a long time will also cause chronic inflammation of the conjunctiva, especially bad quality contacts, will cause changes in the ocular surface, including the tear film, conjunctiva, cornea and other changes, such as dry eye, macropapillary conjunctivitis, corneal vascular opacities and other changes, and the emergence of the corresponding complications, the patient will have a foreign body sensation, dryness of the eyes, photophobia and tearing, and other symptoms. Eye drops containing preservatives should not be used while wearing lenses, as the lenses will adsorb the preservatives in high concentrations that accumulate in the lens and damage the ocular surface. For these dry eye symptoms you can use Hailu? It is moisturizing and lubricating, and because it is preservative-free and phosphate-free, it can be used while wearing contact lenses and contacts. Sea Dew can be used for up to three months after opening and can also be used when wearing lenses. It is easy to use and carry around in your bag, on your desk or at home. For contact lens and contact lens wearers, it is an essential “weapon” to protect your eyes from damage.