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 more
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
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 more
I've been experiencing dizziness for a month, episodes of eyes black out for seconds, burred vision and weakness on my both arms, what causes this?
Only able to y: Determine the cause by examining you eyes. Pay attention if it moves with eye movement or if there is any flashing lights associated with this. See an ophthalmologist for this. ...Read more
Why does my vision go fuzzy and or black out when I stand up? It doesn't happen when I'm sitting down.
I recently experienced a new aura before the onset of my migraines, I black out for a few seconds. It's like my vision goes out. Should I be concerned?
Inform your DR: This can certainly be "normal" with migraines, but with new symptoms, it is best to inform your DR. ...Read more
When I stand up after sitting or lying down for 15 minutes or more I always lose my vision (black out)for 3-5 seconds and I feel extremely dizzy like I'm going to pass out is that normal?
Hard to say: Symptoms such as those asked about, when all together, may be caused by an anxiety attack. If the anxiety attack is accompanied by hyperventilation (breathing really fast or superficial), than breathing in and out of a paper bag can help shorten the episode. As always, when you have concerning symptoms, please see a medical professional in person for an evaluation. ...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
Vision blacks out in one eye for a split second. It used to black out in left eye, of late it blacks out in my right. Myopic 1.5 both eyes. Wat is it?
If it lasts for a: Split second, there are no known pathologic conditions. It most likely is a normal variant related to tear film fluctuations. ...Read more
Low grade fever for three days, spots in vision. Very lethargic. Dizzy upon standing, almost black out. Constant upper abdomen pain. Time to c a doc?
Yes!: Go see a doctor immediately.Get a more detailed answer ›
Left eye peripheral vision gets yellow moving spot along with peripheral vision black out. Docs says retina is OK. Mild pain in eye as well. Help!!
Probably migraine: Your peripheral moving yellow fringe spots with adjacent darkened areas w/ mild ocular discomfort sound migrainous in nature. Your retina doctor reviewed your eye & indicated your retina was fine & not the source of the disturbance which is reassuring. Yours symptoms are likely triggered by stressors. Speak to your family doctor for advice on how to manage these symptoms. ...Read more
A million things: If you are passing out, becoming unconscious, that is a medical emergency and needs to be evaluated. It can be caused by strokes, heart attacks, heart arrhthmias, a blood clot to the lungs, or severe loss of fluid -dehydration or bleeding. If you mean an alcoholic blackout - not remembering what happened - alcohol does that as a toxic effect, and other rapid acting sedatives can do the same thing. ...Read more
Carotid narrowing: Carotid artery stenosis and heart valves leaking and also concusion can cause it. ...Read more
Maybe it got hot: A person who gets overheated will automatically dilate (widen) the blood vessels in his skin so that more blood will flow to the skin. His body does this in hopes of cooling him down, just like the elephant who sends more blood to his ears to cool his body down. The person, however, feels lightheaded and may faint because there is not enough blood flowing his brain (too much blood is in the skin). ...Read more
urinating less often, or having dark yellow or brown urine
a dry mouth or cracked lips
no tears when a child cries
feeling tired or confused
feeling dizzy or light-headed
eyes that look sunken in the face
a “sunken fontanel” (in babies) – a fontanel is a gap between the bones in a baby’s skull. When babies are dehydrated, the fontanel on the top of t. ...Read more
Possibilities...: The most common causes of cough include acute bronchitis, usually caused by an infection of the airways, bronchospasm, gerd, post-nasal drip, chronic bronchitis, a form of copd. If you are coughing and passing out, called post-tussive syncope, you need to see your doctor so your cough can be definitively diagnosed and treated. If you smoke, you need to quit asap! ...Read more
Black out: Blackouts or loss of consciousness during a car accident could be caused by a number of things: direct head injury causing trauma to the brain, whiplash causing trauma to the brain by whipping it back and forth inside the skull and then simple syncope or fainting from shock of stress/anxiety. Are you the person who was in this car accident? ...Read more
Hi how are u I have a question for u I have been coughing bad and lately I cough and it's like I black out what could cause this?
Cough: The pressure produced by coughing just causes the sensation to occur if you're coughing badly sit down so that you do not fall ...Read more
I recently been getting headaches that have been getting worse and more often. It hurts more w/ standing up quickly and caused black out for seconds?
Have it evaluated: Then you should see a neurologist and have the issue evaluated. ...Read more
What causes a person to faint? Apart from somthing simply being overwhelming, exactly how dose the body cause the person to faint or pass out or black out for a sec?
Common denominator: The common denominator is often reduced global perfusion to the brain. This is most often from a drop in blood pressure such as from hemorrhage (like a gunshot wound) or from a cardiac rhythm disturbance, sometimes with dilated blood vessels like with a simple faint. A direct CNS agent, like an anesthetic, can do it. Diffuse electrical discharge like during a seizure can also cause it. ...Read more
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