Doctor insights on:
What Causes A Sudden Black Out In Vision
Many things: A number of conditions can cause a sudden blackout of vision. Most of these are vascular events affecting important structions in the visual pathway, such as retinal aretery or vein occlusion, hemorrhages, and vasospasm. We see with both our eyes and our brain, and these structures require perfusion of blood for oxygen, butrition and proper function. ...Read moreSee 2 more doctor answers
What can cause an abrupt black out in vision, and some dizziness with a spinning sensation, for a half minute?
Possibly causes of split second black out in vision? Young, healthy, no risk factors of any kind. Taking .25 clonazapam. Have inactive Graves disease.
Many causes: This can be due to anxiety, the clonazepam (Klonopin), TIA (amaurosis fugax), etc. See your physician immediately to discuss your symptoms in detail and to review your risk factors as well as to undergo a complete neurological and ophthalmologic exam. http://www.nlm.nih.gov/medlineplus/ency/article/000784.htm ...Read more
What could cause someone to black out, fully conscious in the shower. Lasted for less than a minute. Vision came back hazily at first and then fully?
Postural Hypotension: Low blood pressure is a common cause of "blacking out" that can be benign--unless, of course, the person hits his/her head on the way down. There are many other reasons why one would black out: medications, malnutrition, stroke, low blood sugar, dehydration, diabetes, seizure, infection, fever, and more. See your doctor for a complete physical and blood work. ...Read more
What could be causing this? When i stand up i get dizzy and start to black out and when my vision starts to clear, my lips and finger tips feel numb.
See your doctor: There could be many causes of these symptoms. Your blood pressure could be dropping when you get up quickly ("orthostatic changes"), your heart rate may be abnormal, or there could be other causes. Your symptoms need to be evaluated as soon as possible. I wouldn't drive yourself anywhere until you find out what is going on... ...Read more
Vertebrobasilar art?: Transient obscurations of vision, especially on rapid standing, can cause a bilateral dimming of vision with lightheadedness. The cerebellum is a balance control center and is located in an area of the brain near the visual cortex. A vertebrobasilar artery occlusion could cause both symptoms. A neuro-ophthalmologist can check your mri. ...Read moreSee 1 more doctor answer
Why does my vision go fuzzy and or black out when i stand up? It doesn't happen when i'm sitting down.
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