Blurred vision after working out and drinking coffee


Q: I went for a run this morning (half an hour pushing my 7 month old in the jogging stroller). I drank a cup of water afterwards, and then went to get coffee. After drinking a couple cups of coffee, my vision started to get blurry, at first like I had looked at a very bright light and when I tried to focus on objects (like the computer screen) there was a big blurry spot where I was trying to focus. Then it started to get very blurry in the bottom and periphery of my vision. This lasted about 15-20 minutes. I drank some water and eventually it started to go away.
This has happened to me before, about two or three years ago, and also a couple years before that. I went to the emergency room after these episodes in the past because the blurred vision was accompanied by numbness in my lips and I was also pregnant the last time this occurred.
The doctors did not find anything wrong with me and it went away.
This time it was only my vision that seemed affected. Each time this has happened I have noticed it has been during the summer and I had been drinking coffee and or working out. Is this just an adverse reaction to caffeine perhaps combined with minor dehydration?
What could be causing this?


A:   This question is currently in queue and will be answered shortly by one of our doctors. In the meantime you may browse our library of answered questions by clicking here.

Related Q&A

Q: I quit caffeine about six weeks ago and went through bad headaches, anxiety, for about 2 weeks. Now when I go to work...

Q: Am having difficulty checking my blood pressure it gets high and then it gets a little lower sometimes not where its ...

Q: Is it Ok for me to drink a Monster Ultra (the one with no calories) 2-3 times a week?

Q: Is there any evidence that drinking reheated leftover coffee and tea is harmful to health, particularly those drinks...

Q: I'm having horrible pains in my left upper body and don't know why


Dr. James Obaji M.D.

  • 247 Reviews
  • Family Physician

Dr. Suneel Sharman M.D.

  • 190 Reviews
  • Family Physician

Dr. Pat Golden M.D.

  • 169 Reviews
  • Cardiologist

Dr. Kunaal Jindal M.D.

  • 112 Reviews
  • Plastic Surgeon