Coffees Effect On Vision

by Helene
(France)

Question:

Do you know if coffee has an effect on vision? (Not especially improve it, any effects)

Answer:
It is a possibility that the caffeine intake from drinking coffee will raise your blood pressure. This in turn can cause your vision to become slightly blurred. However, most people drinking reasonable amounts of coffee will not have any negative vision effects.

The caffeine in coffee is also a diuretic which will cause your body to lose water faster than normal. It is doubtful that this would affect your vision unless you were drinking excessive amounts of coffee daily. Even then, the effects would be mild to none, and would only be temporary. Once you stopped drinking, the caffeine would be eliminated from you system within approximately 12 hours.