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Doctor insights on:
Cortical Visual Impairment Treatments
1
What are cortical vision impairments?
Brain problem: Cortical visual impairment is when visual function is affected by changes in the brain rather than changes in the eye. Cortical visual impairment can be caused by developmental brain defects, head trauma, strokes to the occipital lobe and some other things. ...Read more
2
What is cortical vision impairment (cvi)?
Pbm in brain not eye: The term cortical vision impairment implys that there is a problem with the brain cortex (outer cell layer) that interprets the imput of the eye and visual nerve inputs.This is similar to having a good video camera, cables and system but the no screen to display the input in a way you can understand it. ...Read more
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What are the symptoms of cortical vision impairments?
Visual field loss: Dysfunction in the cortex either disrupts the visual pathways, blocking that portion of the visual signal--or there can be dysfunction of the actual visual processing portion (occipital lobe). In both cases chunks of vision will be lost . Other cortical problems may disrupt pattern recognition, facial recognition or other higher degree visual interpretation. ...Read more
4
How is visual acuity preserved in bitemporal hemianopia?
Nerve fiber pattern: Bitemporal hemianopia is the classic later stage vision pattern in advancing pituitary tumor. Generally the central fibers, which carry the best acuity are affected later in the condition. A great deal of vision loss would have to be ignored by someone with this condition before the nerve fibers for the central acuity start to drop out. ...Read more
5
Cognitive deficits and blurry vision are these reversible with vasculitis?
May be: Only time will tell about the improvement it all depends what is the extent of permanent damage. ...Read more
6
Cognitive impairment can reduce the persons executive function?
Other way around: Executive function is one facet of cognitive function (or impairment if lost). Apraxia (inability to do simple mechanical tasks like buttoning shirt), aphasia (inability to speak intelligibly), agnosia (inability to name recognizable objects) & memory loss are other components of cognitive function/impairment. This can be evaluated during any visit w/simple questions. ...Read more
7
Do optic pathway gliomas cause visual loss?
Yes.: And depending on location and size, and patient age, resection or raditherapy can be used to maintain vision, or retard progressive visual loss. ...Read more
8
How are visual impairments diagnosed in people with dementia?
Optometrist: Like anyone else, people with dementia should be routinely evaluated by an optometrist. Dementia sufferers at an elevated risk for visual problems, given shared risk factors (age, vasculpathy, etc.) also, important to identify and correct/treat, as any diminished sensory perception will exacerbate dementia symptoms. ...Read more
9
What is combined visual acuity (combined vision)?
Using both eyes: Combined visual acuity is the best that you can see with both eyes open. Though one would think that it can only be as good as the better seeing eye, often combined visual acuity is better than that. In other words, one can usually see better with both eyes open than with each eye individually. ...Read more
10
Is visual/spatial impairment characteristic of asperger's?
Not uncommon: Sensory processing issues commonly occur in the autism spectrum disorders, so much so the these problems are now included in the criteria for diagnosis. Visual/ spatial problems can be a form of a sensory processing issue. Get a good evaluation and see an occupational therapist trained in sensory processing conditions. ...Read more
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What is mild cognitive impairment or early dementia?
MCI: The most important point is that mci does not always progress to alzheimer's. On exam, a good psychiatrist or psychologist can pick up subtle changes in cognition. But does not rise to the level of dementia. ...Read more
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Cortical blindness with seizures. Is any cure available?
Cure no, control yes: Control seizures and the cortical blindness will also be controlled. ...Read more
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How do visual impairments affect the brain?
Boosts other senses: The brain pays more attention to hearing, smell, touch, etc. When deprived of sight. These senses do not actually improve; when tested objectively blind people don't "hear better", but the brain can certainly pay much closer attention to the information. It would be very hard to read braille were this not the case. ...Read more
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What is cognitive impairment? New term for mild dementia?
Cognitive impairment: Is a description of something going wrong in the brain, so no it is not a substitute for mild dementia. It just says that the infection or fever or depression or blood sugar or any number of other things is impairing a person's cognition. ...Read more
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15
What are the symptoms of visual impairments like macular degeneration?
See a retina special: Patients complain of central visual distortion and/or blurring. An amsler grid for at-home testing of vision is an excellent way to monitor for this and other macular diseases. ...Read more
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How rare is macular degeneration vision impairment?
Frequent in elderly: There are a few rare macular degeneration (md) cases in the young but most md is in the elderly. Vision changes can be from minor to severe depending upon the individual. The frequency increases with age up to about 17% affected in those over age 90. If you or a family member/friend has this problem, they should see a retinal specialist for evaluation and possible treatment. ...Read more
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Does visual acuity decrease in cases of intracranial hypertension?
Sometimes: Many times patients develop transient obscurations of vision, or brief episodes of blurry vision. These are temporary if treatment ensues promptly. Long term high intracranial pressure can produce permanent defects in vision due to damage of the optic nerve. This condition needs to be closely monitored by both neurologists and ophthalmologists. ...Read more
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Treatment for progressive gait imbalace and progressive dysarthria slurred speech?
Uncover cause: Likely best to see a neurologist. There are multiple problems which can cause this, and treatment follows diagnosis. ...Read more
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Are there medications that can improve motivation, planning, and executive functioning deficits associated with nonverbal learning disability?
Executive function: Assuming you've had a thorough psychological evaluation, you might benefit from cognitive working memory training. Cogmed is a brain fitness program that is based on the concept of Neuroplasticity. Through training one can improve working memory. Helpful info is available at www.cogmed.com. There is a list of providers in your area.. ...Read more
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