Is Caffeine Good for My Eyes?

Many of us look forward to the lift we get from the caffeine in our morning or afternoon coffee. And we find that caffeine not only in our coffee, but also tea and some sodas.

If you're an avid caffeine consumer, be aware that caffeine may sometimes adversely affect your vision. So take a minute to survey your caffeine habits and then schedule your regular eye exam to stay on top of your eye health.

Effect of Caffeine on Vision: Glaucoma 

A 2012 study by the Association for Research in Vision and Ophthalmology (ARVO) suggests that consuming large amounts of caffeinated coffee may increase the risk of vision loss. According to study notes, “Heavy caffeinated coffee consumption is associated with an increased risk of developing exfoliation glaucoma, the leading cause of secondary glaucoma worldwide.” Researchers found that daily consumption of three or more cups caffeinated coffee was enough to increase the risk. (The study did not link other forms of caffeine to glaucoma).

Caused by increased pressure within the eye, glaucoma is called a “silent” eye-disease that slowly progresses as the pressure eventually damages the optic nerve. Without proper treatment, glaucoma can lead to permanent blindness. According to The Glaucoma Research Foundation, consuming significant quantities of caffeine in a short period of time may elevate intraocular eye pressure (although other studies do not indicate a connection), and regular spikes in eye pressure over time could damage the eyes.

Effect of Caffeine on Vision: Dry Eye 

Our daily caffeinated energy boost may impact vision in other ways, too, such as dry eye, though evidence is mixed. Recent research from the University of Tokyo’s School of Medicine indicates that caffeine may actually increase tear production and reduce dry eye symptoms, but a 2004 study at the University of Wisconsin Medical School found caffeine increased the risk of dry eye. If you consume significant quantities of caffeine, keep a watch for dry eye symptoms:

• Blurry vision
• Burning, itching eyes
• Redness
• Excessive watering
• Eye fatigue
• Feeling of foreign substance in the eyes

Protect Your Efforts for Better Vision

Each of us has different reactions to caffeine, so start taking note of the impact on your vision. You probably won’t need to go without it entirely, but you may consider moderating consumption. Listen to your body, be aware of changes in your vision, and know when it’s time to cut back – and keep track of your annual routine eye exams!

Here at Rochester Eye and Laser Center, we want to help you protect and improve your vision. Even if you have achieved 20/20 vision through LASIK vision correction, you need to have regular eye exams to stay informed of potential conditions like glaucoma which may be occurring without your knowledge. Contact us today at 585-232-2560 to schedule your eye exam and protect your precious eyesight.

Interested in LASIK? Join us for our free Virtual LASIK Seminar on March 18th from 5-6pm. Talk to Dr. Lindahl and get all your questions answered about the procedure, technology and outcomes. Win a chance for a free LASIK procedure too! Get your free ticket.