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Medical Forum / Diseases and Disorders / Glaucoma / February 2007Drinking Water
Does drinking a large quantity of water say a few Litres affect Glaucoma? Thanks > Does drinking a large quantity of water say a few Litres affect > Glaucoma? > > Thanks If you drink it all in a short period of time. I read that you shouldn't drink more than 8 oz in 20 minutes. It can raise the IOP. Sherry About a small bottle of drink in 20 mins? I used to drink 1 Ltr in few mins. Thanks >> Does drinking a large quantity of water say a few Litres affect >> Glaucoma? [quoted text clipped - 5 lines] > > Sherry CTG, a very small bottle, 8 oz is a little less than a quarter of a litre. When people say that one should drink 8 glasses of water per day, the term "glass" is defined as 8 ounces. (Off topic, but I dream of the day the US will switch to the metric system, much more simple than what we use now). > About a small bottle of drink in 20 mins? > I used to drink 1 Ltr in few mins. [quoted text clipped - 9 lines] >> >> Sherry Thanks for your reply. So 8 oz ( a glass) needs to be drunk in 20 mins? Is that medically proven that it 'd affect the IOP? it is scary.. So are you saying > CTG, a very small bottle, 8 oz is a little less than a quarter of a litre. > When people say that one should drink 8 glasses of water per day, the term [quoted text clipped - 15 lines] >>> >>> Sherry > So 8 oz ( a glass) needs to be drunk in 20 mins? What it means is, don't drink more than 8 oz in any 20 minute period. If you want to drink, drink slowly and spread it out over time. > Is that medically proven that it 'd affect the IOP? Yes. Mike > > So 8 oz ( a glass) needs to be drunk in 20 mins? > [quoted text clipped - 6 lines] > > Mike Do you have a citation for the eight ounces/20 minutes? These describe the "water drinking test" as one liter of water consumed in five minutes. http://bjo.bmj.com/cgi/content/full/89/10/1298 http://www.liebertonline.com/doi/pdf/10.1089/jop.2004.20.401?cookieSet=1 This one from the Glaucoma Research Foundation says: "Studies have also shown that as many as 80% of people with glaucoma who consume an entire quart of water over the course of twenty minutes experience elevated IOP, as compared to only 20% of people who don't have glaucoma. Since many commercial diet programs stress the importance of drinking at least eight glasses of water each day, to be safe, people with glaucoma are encouraged to consume water in small amounts throughout the day." http://www.glaucoma.org/treating/alternative_med.html One liter is 1.05 quarts. It's harder to down a whole quart or liter of water in twenty minutes than it is to drink 8 oz. <snip> > Do you have a citation for the eight ounces/20 minutes? > [quoted text clipped - 17 lines] > One liter is 1.05 quarts. It's harder to down a whole quart or liter > of water in twenty minutes than it is to drink 8 oz. From online doc chats at Wills Eye Hospital Glaucoma Service website: P: Should glaucoma patients not drink 64 oz. of water per day, as is often recommended for good health? Dr. Rick Wilson: You should drink plenty of fluids, six to eight glasses a day are recommended. You should not drink three glasses in an hour unless you are dehydrated. http://www.willsglaucoma.org/supportgroup/20010117.html 3 glasses per hour = one every 20 minutes. More related to a caffeine question, but water is addressed: P: Does caffeine have any effect on IOP? Dr. Elliot Werner: Caffeine does not seem to have an effect on IOP. Ingesting a large amount of any fluid in a short time will increase IOP, so it is the water in the eight cups of coffee that is the problem, not the caffeine. http://www.willsglaucoma.org/supportgroup/20031210.php Granted, these aren't studies, but the docs at Wills are top-notch! Better safe than sorry anyway, eh? Sherry |
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