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A member asked:
Doctor said 30% optic nerve damage & no peripheral vision lost. he said at 50% damage i would notice vision loss. does this sound reasonable?
3 doctors weighed in across 2 answers
Yes: Our eyes are really globes with the back part lined by a film called the retina. We really only pay attention to the images in about 50% of its surface - the ones that are within the limits of the movements of our lens. So you can suffer a certain amount of damage and still not hamper your effective vision.
Answered 3/7/2015
5.3k views
Yes : We can measure nerve damage that does not effect vision or visual field. In most cases of glaucoma, the disease is advanced before the patient notices anything. This lost vision is permanent.
Answered 3/7/2015
5.3k views
Related Questions
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If 2 drs, say glaucoma was caught early but there is 30% optic nerve damage and some peripheral vision loss, how can they say it was caught early?
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Diagnosed w/glaucoma. Opthomologist said no peripheral vision loss. No optic nerve damage but the nerve tissue has thinned. How serious is that?
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A member asked:
On average what percentage of optic nerve damage must there be in order to show a loss of peripheral vision on a field test?
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Can sudden peripheral vision loss due to optic nerve head drusen reverse, change in severity or fully recover?
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