Posted by sdb on December 23, 2009, at 16:17:19
In reply to Is it normal to go blind temporarily?, posted by Deneb on January 6, 2009, at 1:29:11
> OK, this happens to me a lot. I would be sitting down, then I get up and go blind for a while. Sometimes I fall down. I regain my sight.
>
> Sometimes I hear a ringing in my ear too and sounds get muffled.
>
>among different syncopes this is most likely an orthostatic syncope. due to gravity fluid goes into the venous pooling. the counterregulation of the nervous system and the heart is not enough fast. many young people do have that and it is not dangerous. If you're taking a betablocker this can also cause an impaired cerebral perfusion when changing positions (stand up fastly). sombody can have too less fluid. If there are no symptoms and you're young then it is likely not a pathology or it is a sideeffect of some drugs like eg. a betablocker.
poster:sdb
thread:872463
URL: http://www.dr-bob.org/babble/health/20081212/msgs/930570.html