Researchers from the University of Washington School of Medicine in Seattle have discovered a correlation between cataract surgery and the development of dementia, including Alzheimer’s Disease (the most common form of dementia).
How Can Cataract Surgery Reduce the Risk of Dementia?
The authors of the study analyzed data from over 3,000 participants. They found that the subjects who had cataract surgery experienced a lower incidence of dementia. They believe that the increase in sensory input and greater exposure to blue light after cataract surgery may be responsible for this.
These observations make sense if you consider how cataract surgery works.
How does cataract surgery work?
As you may know, a cataract is a clouding of the eye’s natural lens. Over time, cataracts can become thick, yellow colored, and lose transparency. Vision is blurry and less colorful.
When an Ophthalmologist performs cataract surgery, the natural lens is removed and replaced with a synthetic lens called an Intraocular Lens or IOL. This lens is perfectly clear and measured to give the patient the best possible vision.
Therefore, the patient’s vision, and in turn, sensory input, is maximized. Colors appear more vibrant as a result.
Upon further investigation, the research team found that the patients who had cataract surgery had an almost 30% lower risk of developing dementia after the surgery!
Learn more about the wonders of cataract surgery and how to properly prepare for it — download our free guide 34 Questions You Must Ask BEFORE Having Cataract Surgery.