You ask if things are the same nationwide? here's my story (100% true).
When I was 20 years old, it was time for my first Drivers License renewal. Back then you had to go in, take the written test and so-on to renew your license.
So I went in, took and passed the written test. Then it came time for the eye test.
Note that I am blind in my right eye... have been all my life
Here's how this little exchange went;
DMV clerk; "Okay please cover your right eye and read line C behind me."
Me: "No need to cover my right eye, I'm blind in that eye,"
Clerk: "Oh! Okay then cover the other one." (WTF???)
So I covered my LEFT eye.
Clerk: "Now read line C behind me."
Me: "I can't see it."
Okay so there's a guy at the window next to me and is laughing at this little exchange. Anyway, we get though this little Eye exam and she tells me that she needs to make an entry about this in their computer. She starts typing, mumbling about it to herself as she does. Then she asked me, "What do you call that?"
I said, "A real drag!"
Okay so I get my renewal and they have their entry in the computer.
Fast forward to the current day, I'm now 47 years old and I got a notice from the DMV saying that I need to go in for my renewal to take the written test, get a new photo and eye test.
So I take the test, go to the window and the exchange goes like this:
Clerk; "Cover one eye and read line A behind me"
Me: "No need to cover one eye, I'm blind in one eye."
Clerk:" Really which one?"
Me: "My right eye. See it's actually glass" (I tappet it with the pencil to prove that it really is a glass eye.)
Clerk "Wow! Can you take it out?"
Me: "Yes"
Clerk "Okay so why don't you take it out and read line A behind me..." (WTF???)
I got out of there after spending several minutes convincing here that even if I took it out, that eye is STILL BLIND!!!!!!
Okay so I got my renewal, new picture and figure that I'm good for another few years before I have to endure this idiocy again.
So count yourself lucky that you don't have anything "special" that needs to be considered.