Clear Eyes Redness Relief Eye Drops provide relief for eye redness and up to 12 hours of soothing comfort. The eye drops soothe and moisturize eyes and relieve redness, burning, and irritation. Using the eye drops will help to protect against future irritation. To use Redness Relief eye drops, instill 1 to 2 drops in the affected eye(s) up to four times daily. As the #1-selling brand of eye drops, Clear Eyes® has provided consumers with a line of OTC eye drops for relief of a range of conditions including allergies, redness, itchiness, and irritation. Clear Eyes® products are FSA- and HSA-eligible in the U.S.