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What is the difference between carboxymethylcellulose and other eyedrops?

Over-the-counter eye drops that contain carboxymethylcellulose are used to prevent or relieve symptoms of dry eye. Refresh, Tears Again, and TheraTears are some brand-name products containing this drug. Other over-the-counter eyedrops, such as Visine, are not designed to lubricate the eye like carboxymethylcellulose drops do. Instead, Visine reduces eye redness by contracting the eye's blood vessels; its active ingredient is the decongestant tetrahydrozoline.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.