Our Iris Ink Eye Drops contain Calcium Chloride Magnesium Chloride Sodium Bicarbonate. It can relieve eye fatigue maintain overall eye comfort protect the eyes from potential damage and also improve vision 24 hours without glasses can also maintain clear vision. Its use method is very simple: wash your hands before using eye drops tilt your head back or lie flat as far as possible pull down the lower eyelid to separate it from the eyeball drop eye drops into the conjunctiva of the lower fornix close your eyes for at least five minutes or gently massage the upper and lower tear glands of the inner corner of the eye with your fingers and finally wipe away the water and tears that flow out of your eyes with a tissue or towel. It protects the eyes from potential damage and improves vision helping you enjoy a clearer vision.