Can vision be regained after it is lost?

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Offline thedoc

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Can vision be regained after it is lost?
« on: 22/10/2015 13:50:01 »
tom wilkinson asked the Naked Scientists:
   My wife has suffered a right hemisphere aneurysm leaving her with Hemianopia and memory issues. The memory issues we are dealing with. Is there any posibility of her getting her vision back. Her opthalmic surgeon says no change after two years. She has approx 35% vision.
What do you think?
« Last Edit: 22/10/2015 13:50:01 by _system »


Offline chris

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Re: Can vision be regained after it is lost?
« Reply #1 on: 26/10/2015 09:24:49 »
Dear Tom

I'm sorry to hear about your wife. Regrettably, in situations like this where there has been damage to the central nervous system (meaning the brain), the prospect for full recovery at this stage is not good. As a general rule, damage to the brain leads to irreversible loss of nerve cells and the roles that they subserved. Since the brain is regionally specialised, that is different regions perform different tasks, damage or loss of tissue in a specific region leads to the loss of function corresponding to that brain area. There is a degree is plasticity in the nervous system, so some recovery is possible under certain situations, but in the case you describe, which occurred a considerable time ago, I think that the likelihood of seeing further functional improvement is low.

What should be done, however, is to dwell on what your wife can manage and to look for ways to use her existing skillset to develop strategies to surmount some of the difficulties imposed by her predicament. Easier said than done, and I am very sympathetic towards your situation, but that's I think the best you can do, realistically.

I never forget a face, but in your case I'll make an exception - Groucho Marx