Blurred Vision after Exercise

1 to 20 of 26 messages
05/06/2008 at 22:26

This has only happened a couple of times - first time about 6 months ago and then again tonight.  Both times, I'd worked very hard - the first running 10k fartlek but really pushing it and tonight after a spin class.  About 15 mins after exercise, I notice part of my vision is blurred - a bit just off centre , with a couple of squiggly line type things.  Very disorienting, but it goes after about an hour.  Any ideas?  Any others have experienced this?

05/06/2008 at 22:27
Blood pressure?
05/06/2008 at 22:35

yep I get blurry vision if I'm pushing myself exercising - reckon it's bp related as I have low bp - vision returns to normal when I cool down though.

If yours persists it might be worth a check-up by your GP?

06/06/2008 at 00:37

I would suggest its to do with heat, dehydration and possibly blood sugar levels.

06/06/2008 at 20:17
Sounds like it could be migraine. Do you get a headache or have you or anyone in the family had migraine before?
16/01/2011 at 13:25
Just had same problem myself and wondered if it might be temporary Diabetes. May invest in a blood pressure monitor now. Never thought of that possibility.
16/01/2011 at 15:43


Sometimes I get fuzzy vision after exercise and sometimes light headed, this does go after a short period, but for me I think it is low blood pressure.

When I last had it checked, my rested heart rate was around 42, which I was told was quite low.

As suggested by others, get yourself checked over, in case it's something completely different.

16/01/2011 at 18:49
Agree about migraine, with migraine you often can get an "aura" which is like a visual disturbance of squigly lines or colours affecting part of your vision. This usually precedes the migraine headache but can sometimes be the only symptom (as is the case with me). I tend to also get this after tough workouts, usually when I've been in a very high HR range for a long period of time. I don't think it's anything to worry about. But as always, if you're concerned about it, get to your GP and have yourself checked out. Try and take a list of times it's happened and what you've been doing, how long for, and whether you've eaten/drunk at the time. This might help you nail it yourself anyway, especially if it's down to blood sugar, electrolytes or dehydration.
07/05/2012 at 10:00

Thanks for this.   I am experiencing this for the first time right now, after a hard game of netball - having not played for 20 years.  It's reassuring to know that I am not going blind!

10/05/2012 at 16:57

I get a similar thing on very rare occasions, sometimes after exercise but sometimes just at work, the vision comes back to normal after 30 to 60 minutes.  I don't get full blown migraines but talking to people that do this is often the first sign that they are about to get one.  As others have said if it worries you see a GP as the worry is possibly a trigger for it as well.

10/05/2012 at 17:06

I have experienced this on only a few occasions in ten years of running. I went to my GP who did checks said i was in very good health etc. Happened again about a year ago. GP then sent me for an ECG. Again everything very normal. Everytime i experience these symptoms is when i push myself very hard.

17/09/2012 at 20:58
I experience this occasionally too (including today). I went for a quick 6k run, was fine for 1hr afterwards and then after having a cup of tea had the symptoms described here (blurry vision, squiggly lines, then headache) and can almost certainly say with me it is a combination of a hot workout with not enough water and/or too much tea/coffee. I will check out my blood pressure but I recommend keeping hydrated and keeping off the teas and coffees as a starter.
29/11/2012 at 12:04

glad it's not just me. half way up the 4th hard hill on evening club run (had been out in the morning too) It was like looking through a kaliedescope. Was definately running on empty.

As soon as I started cooling down it was back to normal, and the first thing I reached for in the fridge was a jar of jam with a big spoon, somethign I never do, so body was tellign me to get some sugar in.

29/11/2012 at 12:49

If that's not the early stages of a migraine I'll eat my hat.

I've suffered from migraines on and off since my early teens and I have learned that hard exercise can trigger them: both full-blown and (more often) just the aura stage that you describe. I have found that I can miminise their occurrence by taking care to be well hydrated and to make sure that I have had a snack before running. I had a rash of them last year when I started doing a hard interval session at lunchtimes but having a mid-morning snack made a big difference.


30/11/2012 at 10:45

I sometimes get exercise-induced migraine, usually when I've pushed very hard and not been properly hydrated. Mine starts with visual disturbances and develops into a dehabilitating headache within about 30 minutes, if I can get some painkillers and an electrolyte drink when I first notice my vision going funny then the migraine is usually less severe.

BUT please go and see your GP to get a proper diagnosis.

12/01/2014 at 12:56
This is happening to me now. Very worrying. getting worse. Left eye.
10/04/2014 at 08:22

Hi All,

I am feeling the same after intense weight training. I am suffering from high BP and I think that may be the reason.

I don’t think dehydration and glycogen has anything to do  with it as I do drink water and take glucose after workout. The funny thing is that it has started happening only recently and I am doing weight training from a year now.

Also, I had my BP checked last week and it was 130(higher )/100(lower), still not perfect but better than before.

I don’t want to quit training so I will see my Doc soon!!!


26/04/2014 at 21:27

My husband had some stress over family health and one day his vision in one eye became blurred when looking straight ahead, it was ok when he turned his head to side. Anyway it turned out a blood vessel had burst and it affected the muscle in the eye.

 Jjust a thought if you're exercising and it putting stress on these muscles around the eye, this could happen ??it  took 6 months for this problem to right itself !

22/07/2014 at 22:55
Did anyone find out anymore about this? Just noticed it the first time myself after a morning run. Five km's fairly solid pace followed by some rowing, then came home, showered and noticed it. Curiously it was the same squiggles in both eyes. Blood sugar should have been ok as I had some peach slices before I went and I don't suffer fromdiabetes (that I know of).
23/07/2014 at 23:26

The squiggly line thing is what makes up sleepy dust in your eyes eventually and not to be worried about, or so I have believed for ever.

1 to 20 of 26 messages
Previously bookmarked threads are now visible in "Followed Threads". You can also manage notifications on these threads from the "Forum Settings" section of your profile settings page to prevent being sent an email when a reply is made.
Forum Jump  

RW competitions

RW Forums