Redness Reliever Eye Drops Relief from: pollen, smoke, dust, wind. Relives burning & irritation, rapidly removes redness, moisturizes. Soothing formulation. Clear Eyes ACR has three active ingredients: (1) astringent, that acts by helping clear mucus from the outer surface of the eye, (2) vasoconstrictor, that acts by removing redness, and (3) demulcent, that acts by protecting and moisturizing dry irritated eyes. Clear Eyes ACR is a uniquely formulated eye drop that rapidly removes redness caused by pollen, dust and smoke while also protecting your eyes against further eye irritation. A sterile buffered solution.