(Meredith) -- An ingredient found in most cold and allergy medicines is causing blurry vision and excruciating eye pain, according to a Michigan doctor.
The ingredient the doctor is referring to is classified as anticholinergic. According to WJBK, there are a number of active ingredients in medications that fall under this umbrella. It’s best to check with your eye care professional to ask about a specific medicine.
Dr. Les Siegel with Glaucoma Centers of Michigan told WJBK that cold medicine may cause a form of Glaucoma.
"We've literally had patients laying on the floor in pain," said Dr. Les Siegel.
The ingredient causes your eyes to dilate which can possibly catch fluid between the iris and cornea causing pressure to build, followed by extreme pain.
"If it's not treated quickly you can lose your vision in the eye permanently," Dr. Siegel told WJBK.
Anyone can be impacted by this ingredient but it is more common for someone in their 50's and older, due to a smaller area between your iris and cornea.
Check labels, warning, and be sure to consult a doctor if you're at high risk for Glaucoma or feel unusual eye pressure.