Dry eye relief without preservatives for sensitive eyes: preservative-free lubricating eye drops in single-use vials provide immediate, long-lasting relief from dry eye symptoms Instant hydration:eye drops restore eyes’ natural balance and deliver fast hydration relief for dry eyes, because hydration is as essential for eye health as it is for the rest of the body Our eye drops contain panthenol, sodium PCA, and taurine. It can temporarily narrow the pupils, helping to improve the eye's ability to focus at close range while maintaining clear vision at long distances. Its usage is simple: wash your hands. Tilt your head back and look at the ceiling. Pull down your lower eyelid with your food to form a pocket. Gently squeeze out a drop into your pocket. Do not let the bottle mouth touch your eyes, fingers, or any other place. Gently close your eyes and gently press the corner of your inner eye. Carefully absorb any excess liquid. Deep maintenance, deep soothing, quickly resolving the source of discomfort.