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Glucosamine Supplements Tied to Eye Risk

Seniors taking them had side effect that has been linked to glaucoma, small study finds

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The potential relationship between glucosamine and glaucoma is new to Dr. Scott Fudemberg, a glaucoma surgeon at Wills Eye Institute, in Philadelphia. "The mechanism about how people can develop glaucoma isn't completely understood, so how the supplements may play a role isn't completely understood either," he said.

While the study found an association between taking glucosamine and increased eye pressure, it didn't establish a cause-and-effect relationship.

The best thing that anyone can do to preserve their vision is to get regular eye exams, Fudemberg advised. "Glaucoma can be treated with medications, lasers and/or surgery," he said. "These findings pose a question about whether oral glucosamine can raise intraocular eye pressure, but it doesn't provide an answer. More research is now needed before any conclusions can be drawn."

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