What causes temporary loss of vision? my episodes last a few seconds and last one was 12 seconds. i have been to optimologist ans neurogolist and they both found nothing and mri was clear.Do you have any suggestions?
Well, ideally we would have a lot more information about your vision loss spells. But with two normal examinations, the most likely causes are 1) postural hypotension, where your blood pressure drops when you go from sitting to standing and temporarily your occipital cortex is deprived of blood and stops processing vision signals, or 2) migraine, which can cause vision loss without headache, although not usually for just a few seconds. If this can happen without a posture change, and if you have other sensations such as dizziness, weakness or disorientation during these brief spells, then possibly there is some interruption of the blood flow to the entire back of the brain. This would need to be assessed with an MRA or a CT angiogram.
i have been reading up on postural hypotension and they say it happens after exercising then standing still and standing up from sitting. most of mine have been after exercising/tumbling at cheer practice. The neurologist has me on Keppra because he thinks it might be seizures. I still have episodes just not as frequent. What do you think?
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.