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.