Pure Eyes OTC Eye Drops (Sterile Eye Drops)
In standard over-the-counter pharmaceuticals, Pure Eyes (manufactured by Samson Pharmaceutical) is a combination redness-relieving and lubricating eye drop.
Active Ingredients & How They Work
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Naphazoline Hydrochloride (0.01%): A fast-acting ocular vasoconstrictor ($\alpha$-adrenergic agonist). It constricts swollen blood vessels on the white of the eye (conjunctiva), quickly clearing up eye redness.
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Glycerin (0.25%): A demulcent/lubricant that seals in moisture, soothing burning, dryness, and scratchy sensations caused by environmental irritants.
Common Indications
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Relief of eye redness due to minor irritations (smog, wind, swimming pool chlorine, or dust).
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Temporary relief of dry, tired, or burning eyes.
Important Warnings
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The 72-Hour Rule: Do not use continuously for more than 3 consecutive days. Overusing naphazoline can cause rebound hyperæmia (rebound redness), where the eye’s blood vessels desensitize and dilate even wider, making redness worse.
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Contact Lenses: Remove contact lenses before applying. Wait at least 15 minutes before reinserting.
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Narrow-Angle Glaucoma: Do not use if you have narrow-angle glaucoma without consulting an eye specialist.
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