Blink-N-Cleans Lens Drops Over the course of the day, a film of protein and other material can build-up on your contact lenses, irritating your eyes and clouding your vision. Blink-N-Clean® Lens Drops gently removes particles and material that can cause irritation and discomfort. Its unique dual cleansing formula gently removes protein build-up and moisturizes contact lenses while you wear them, helping to keep lenses fresh and your vision clear. Blink-N-Clean® Lens Drops helps keep your lenses clean while you wear them. From the makers of ACUVUE® Brand contact lenses.