Smile 40 Premium Eye Drops The One are advanced Japanese eye drops designed to relieve eye fatigue, dryness, redness, and blurred vision caused by aging, screen use, and daily strain. Formulated with a high-performance blend of active ingredients, these drops help repair corneal damage, improve focus, and deeply nourish tired eyes. Available in Mild and Cool versions, they provide effective care with a comfortable sensation, making them ideal for daily eye maintenance. Compact 15 mL bottle for convenient use at home or on the go.