ClerzPlus Lens Drops is a sterile, buffered, isotonic, aqueous solution from Alcon Laboratories intended for extended wear soft contact lenses. Use Clerz to refresh your lenses all day long and to enhance comfort. Clerz Plus also helps to remove material that can result in irritation, discomfort, dryness and itchiness while you’re wearing your contact lenses for an extended period. In fact, only Clerz Plus drops contain the patented RLM-100, an active ingredient that prevents protein buildup on soft lenses. Clerz Plus can also be used with gas-permeable lenses. To treat minor discomfort, place two drops in each eye and blink a few times while wearing your contact lenses. Repeat as necessary. To help prevent protein buildup on lenses and maintain comfort, repeat this process four times daily regardless of comfort levels.