Welcome to Johns Hopkins Health Alerts!

"Johns Hopkins Health Alerts is an excellent site and I have recommended it to several of my friends. Thanks again, and keep up the good work!"
  • - D. Ambrosio


This free public service from Johns Hopkins Medicine helps keep you up to date on the latest breakthroughs for the most common medical conditions which prevent healthy aging.

Get the latest news sent straight to your inbox for FREE. Check all the boxes below for the topics that interest you.
We value your privacy and will never rent your email address

Johns Hopkins Health Alert

Caffeine: An Unconventional Treatment for Dry Eye

Comments (3)

Caffeine may have benefits that go beyond that early-morning jolt. Researchers in Japan have shown for the first time that caffeine can significantly increase the ability of the eye to produce tears, a finding that could have implications for millions of people with dry eye syndrome.

The study, which was published in Ophthalmology (Volume 119, page 972), examined 41 men and 37 women who were free of high blood pressure, dry eye syndrome and other eye conditions that could affect tear production. The volunteers were divided into two groups for two study sessions: One group received capsules containing caffeine in the first session and a placebo in the second, while the order was reversed for the second group. The amount of caffeine given, in 200 or 300 mg capsules, was based on body weight. (A cup of coffee contains about 150 mg of caffeine.)

The study found that all 78 participants experienced significantly increased tear volume after taking caffeine when compared with the placebo group. What’s more, the researchers reported that tear production was higher among individuals whose DNA samples showed two genetic variations that play important roles in caffeine metabolism.

The suggestion that caffeine could be a therapeutic drug for dry eye syndrome could eventually lead to improved treatments for this common ocular condition that may contribute to eye infections and vision problems.

Posted in Vision on December 6, 2013


Medical Disclaimer: This information is not intended to substitute for the advice of a physician. Click here for additional information: Johns Hopkins Health Alerts Disclaimer


Notify Me

Would you like us to inform you when we post new Vision Health Alerts?

Post a Comment

Comments

Health Alerts registered users may post comments and share experiences here at their own discretion. We regret that questions on individual health concerns to the Johns Hopkins editors cannot be answered in this space.

The views expressed here do not constitute medical advice, and do not represent the position of Johns Hopkins Medicine or Remedy Health Media, LLC, which has no responsibility for any comments posted on this site.


Caffein eyedrops for high BP patients?

Posted by: DaveHarris | December 7, 2013 3:15 PM

check once the following information. High oxidation-resistance in air at ambient temperature is normally achieved with additions of a minimum of 13% (by weight) chromium, and up to 26% is used for harsh environments.[12] The chromium forms a passivation layer of chromium(III) oxide (Cr2O3) when exposed to oxygen. The layer is too thin to be

Posted by: | December 9, 2013 1:52 AM

HEllo your message above is cut off after "too thin to be.."

Can someone direct me to comments or information about Kidney Cancer sibling-related concerns? Thank you.

Posted by: | December 9, 2013 1:07 PM

Post a Comment


Already a subscriber?

Login

Forgot your password?

New to Johns Hopkins Health Alerts?

Register to submit your comments.

(example: yourname@domain.com)

Customer Service

Registered Users Log-in:

Forgot Password?

Become a Registered User!
It's fast and FREE!
The Benefits of Being a Registered User

Johns Hopkins' Vision Bestsellers

Controlling Glaucoma to Prevent Vision Loss

Written by Harry A. Quigley, M.D., Director of the Dana Center for Preventive Ophthalmology at the acclaimed Wilmer Eye Institute at Johns Hopkins, Controlling Glaucoma to Prevent Vision Loss provides straightforward answers to your most important questions about managing glaucoma, a condition that affects an estimated 2.5 million Americans. Controlling Glaucoma to Prevent Vision Loss discusses everything you need to know about glaucoma: its possible causes, the current methods for diagnosing it, and the many options that you have to treat it, from eye drops to laser surgery. If you or a loved one has glaucoma, our new report will give you the information you need to make informed treatment decisions that could save your sight. Read more or order the INSTANT PDF DOWNLOAD

 


Johns Hopkins Vision White Paper 2013

2014 Vision White Paper
Written by Dr. Susan B. Bressler, professor of ophthalmology at the acclaimed Wilmer Eye Institute, and a team of top Johns Hopkins doctors, this comprehensive report is essential reading for anyone affected by a vision disorder, including low vision, cataracts, glaucoma, age-related macular degeneration, and diabetic retinopathy.
Read more or order now




Johns Hopkins White Papers

2014 Diabetes White Paper
The Diabetes White Paper teaches you how to manage Type 1 and Type 2 diabetes and avoid complications, such as nerve damage, heart disease, kidney failure, and retinopathy. This comprehensive report explains the basics of how your body metabolizes glucose and reviews the latest medications and tools for monitoring your blood glucose. Includes diagrams, glossary, and recent research.
Read more or order now

Health Topic Pages

  • Health Alert
  • Special Report

What is this?

XML