i just checked there is a box but allows explanation. if cured or not having issues you will pass
from Mayo clinic

Quote:

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Most people who experience a single episode of optic neuritis eventually recover their vision. Treatment with steroid medications may speed up vision recovery.

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http://www.nhra.com/contacts/forms/physical01.pdf

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Thanks! The steroid only helps the inflammation of the optic nerve when it first happens. I did that. What it means is that you typically don't stay blind, but once optic nerve cells are dead, there's no fixing them. There are about 1.1 million in each eye. Vision improves for about 6 months and that's probably as good as it will get.