Blurred Vision after Exercise

21 to 26 of 26 messages
24/07/2014 at 01:02

I'm not so sure. I generally stay pretty hydrated and had water with me. The fact it's in both eyes seems to suggest it's coming from the brain? I also got the headache the guy's are describing above within another half hour. I had even dropped some electrolytes and nurofen after reading the post. Curious. I guess I'm trying to rule out mini-strokes etc. Might go and see the doc anyway and see what they say.


28/07/2014 at 13:21

As others have said, it sounds like the aura phase of a migraine - google 'scintillating scotoma'. I used to get this regularly (2-3 times a month), sometimes when my blood sugar was low but other times there wasn't an obvious explanation. I had an MRI scan (all clear) then went on medication (beta blockers) to try and stop it happening but didn't like the side effects so decided to just live with them instead. I have no idea if this is related, and the doctor doesn't seem to know either, but about 18 months ago I discovered I was anaemic and started taking iron tablets. Since then, I get the visual thing about once every 3 months if that.

15/05/2015 at 13:34

Just had this after a very hard PT session in the Gym.

Was a tad concerned but spoke to my trainer and its due to the body being worked so hard the brain has not had all the oxygen it needs to balance the body out correctly. So it basically dials down some areas of the body, one being vision which becomes impaired until you have got your oxygen flow back to normal around the body.

cougie    pirate
15/05/2015 at 13:55
Aah I got that in my last duathlon heading out onto the last run. Quite tricky running through transition and seeing double of everything. It settled down in the race though.
06/07/2015 at 18:04
I only get a couple of the visual disturbance/squiggle and again tonight had to turn back home in car as just couldn't risk the headache that can follow. I get vision disturbance - lose 'peripheral' vision and if I don't get some paracetamol and large drink in then almighty migraine follows. For me , just grateful
I get the squiggly eye warning as only had the headache once and do not want it ever again !! Def dehydration causal factor - don't forget that your fluid requirements vary considerably - normal is approx 35-40ml/kg so exercising on top of 'normal' sig increases these requirements
21/09/2015 at 12:37

I had my first episode of slight loss (lasting 40 minutes) and flashing in May after a hard run, then followed by headache.  GP reckoned it was exercised induced Migraine.

Had a subsequent MRI/brain scan and all OK - specialist was not sure what the cause was but usual suspects were possible: Stress dehydration, etc.  It now only happens during weight training or hard exercise. It could be dehydration which is causing this as each time but not sure.

I'll keep investigating and update on here when I know more.

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