goin blind for about a minute or two

[Psue624]

hello, every once ina while when i stand up or get out of bed or just when im sitting watching tv, i find that my left eye goes blank and i have no PV. its almost like a cloud of blackness surrounds my eye as if i were looking through a straw. i have been getting regular migranes ( probably close to four a day) for the past two weeks. i am not diabetic and i dont have high blood pressure ( i have been checking that on a regular basis) im only 28 yrs old....i dont have the nerve to go to a doctor til i kind of have an idea of what could be wrong. any idea what could be wrong?

[John C Hagan III, MD, FACS, FAAO]

Stay hydrated, sit up or stand up slowly, if it starts to black out try tightening your abdominal muscles.

JHCHMD

[Psue624]

ok so im not athletic at all and it lasts for about five minutes everytime, but it makes sense ... is there anything i can do to prevent this? should i drink more water or something?

[John C Hagan III, MD, FACS, FAAO]

You do need to discuss with you MD and see an ophthalmologist but the most common cause is "orthostatic hypotension" which means when you get out of bed or stand up your heart has to work harder becauses the heart goes from the same level as your head to pumping straight up hill. Often it takes a few seconds for the heart to kick in gear, the brain/eye don't get all the blood they need and vision darkens out for a few seconds. This often happens in very young very healthy atheletic individuals with slow heart rates.
JCH MD