Discussions By Condition: I cannot get a diagnosis.

Mystery diagnosis

Posted In: I cannot get a diagnosis. 1 Replies
  • Posted By: suziewww
  • November 15, 2008
  • 08:47 PM

My "vision" has had a sever onset of problems. It started with being online, and then with ticker across the news....letters would float up and down. The sympotms have gotten worse all of this happened within the last 10 days. I have a full vision test with an opthamologist my "vision" is perfect 20 / 20 with NO retna problems. They feel it is neurological but the doctors think it is strange that the visual disruption is in both eyes. Optical Pathways only cross in one section of the brain and should not effect both eyes. The CT scan was fine no large mass, and an MRI is next. No infection blood work is perfect. Now larger objects tend to float not just words on the TV and computer. Also I feel like I am moving when I am not. It is not vertigo either. No headeaches, all neurological test have come back fine as well. I am just so sad I spend so much time online, but everything I read floats up and down like it's on a sea-saw or is floating in water and it's getting worse by the day!

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  • This actually sounds like Computer Vision Syndrome. It is bilateral in nature and is not serious, nor does it constitute a neurological problem. It is a type of eye strain that causes tracking problems and sometimes diplopia or blurred vision. Realize that they eyes are directly associated with the oculo-vestibular system and any inability to focus on a horizontal plane is going to cause feedback to the vestibular system that causes a sensation of motion. You would, however, have to be exposed to the computer for a great deal of time both at work and at home. The eyes have difficulty focusing on a screen that contains objects made up of pixels and results in decreasing accommodation and muscular strain. The inability to perform smooth-pursuit eye movements should be detectable on direct examination. Problems within the visual cortex can indeed affect bilateral vision but a simple way to determine whether the problem is neurological is to cover one eye. If the problem goes away, then it's purely visual in nature and is associated with the eyes only. If the problem is present regardless of whether you cover one eye, then it could be neurological. Each eye has 50% of its connections directed to the left visual cortex and 50% to the right, so problems developing in the cortex would occur whether one eye was covered or not and this crossover occurs at the optic chiasm. The other possibility is a disturbance at the vestibular junction, which would affect both eyes and your sense of movement. Best regards, J Cottle, MD
    JCottleMD 580 Replies
    • November 16, 2008
    • 11:48 PM
    • 0
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