New Link Between Glucosamine and Glaucoma
Friday, May 31, 2013 at 7:24AM
Ocular Research Symposia Foundation in Aging, Glaucoma, Glucosamine

Image courtesy of

A new link between the oral supplement, glucosamine, and glaucoma has been found in a new, small study published as aresearch letter in The Journal of the American Medical Association. The study was done with 17 participants all over the age of 76.

Specifically, the study found:

Overall, pressure inside the eye was higher when participants were taking glucosamine, but did return to normal after they stopped taking these supplements, the study showed.

"This study shows a reversible effect of these changes, which is reassuring," wrote researchers led by Dr. Ryan Murphy at the University of New England College of Osteopathic Medicine in Biddeford, Maine. "However, the possibility that permanent damage can result from prolonged use of glucosamine supplementation is not eliminated. Monitoring IOP in patients choosing to supplement with glucosamine may be indicated."

U.S. News and World Report noted that while this was the first time this link has been made, the study was limited in terms of brand and duration of the supplement. 

Read the Research Letter: Oral Glucosamine Supplements as a Possible Ocular Hypertensive Agent

Read the U.S. News and World Report Article: Glucosamine Supplements Tied to Risk of Eye Condition

Article originally appeared on Ocular Research Symposia Foundation (
See website for complete article licensing information.