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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?

3 doctors weighed in across 2 answers
Dr. David Lundin answered

Specializes in Neurosurgery

Very sensitive : Formal visual field testing can pick up very small defects due to optic nerve damage. The test can be affectedy your ability to stay focused however.

Dr Namey agreed

Answered 6/2/2019

5.3k views

Thank

Difficult to tell: Depends on what instrument is used to access the eye.

Answered 3/7/2015

5.3k views

Thank

Related Questions

A member asked:

Damage to optic nerve is 30 percent. With treatment how likely is it that in the future i will notice loss of peripheral vision in my sight?

A doctor has provided 1 answer

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

A member asked:

Can sudden peripheral vision loss due to optic nerve head drusen reverse, change in severity or fully recover?

A doctor has provided 1 answer

A member asked:

Diagnosed w/glaucoma. Opthomologist said no peripheral vision loss. No optic nerve damage but the nerve tissue has thinned. How serious is that?

4 doctors weighed in across 2 answers

A member asked:

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?

3 doctors weighed in across 2 answers

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