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How do anti-redness drops work?

ANSWER

These drops use an ingredient called a vasoconstrictor. It shrinks the blood vessels on the surface of your eye. That makes the redness go away.

SOURCES:

Cleveland Clinic: "Which Drops Are Best for Your Itchy, Red or Dry Eyes?"

American Academy of Ophthalmology: "Eye Allergy Treatment," "Dry Eye Treatment."

Mayo Clinic: "Dry Eyes," "Important Things to Know About Contact Lenses."

University of Iowa Health Care: "Artificial Tears: A Primer."

NHS: "Dry Eye Syndrome."

FamilyDoctor.org: "Antihistamines: Understanding Your OTC Options."

Reviewed by Alan Kozarsky on June 06, 2019

SOURCES:

Cleveland Clinic: "Which Drops Are Best for Your Itchy, Red or Dry Eyes?"

American Academy of Ophthalmology: "Eye Allergy Treatment," "Dry Eye Treatment."

Mayo Clinic: "Dry Eyes," "Important Things to Know About Contact Lenses."

University of Iowa Health Care: "Artificial Tears: A Primer."

NHS: "Dry Eye Syndrome."

FamilyDoctor.org: "Antihistamines: Understanding Your OTC Options."

Reviewed by Alan Kozarsky on June 06, 2019

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When should I see a doctor about my eye drops?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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