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I believe that is the % of the test; each test has 100% score, and you have 89%. So depends on how many question of your exam was, you can finger out how many of them were answered correctly.

By...

Hello guys, I just sent in my payment for just the ABO on this Nov 18. Is there anyone taking it too? My location is 149 Berkeley Area.

Good luck if anyone are going to take it!

By the way,...

Hello everyone,

I am going to take the ABO exam on Nov 18 2007. And just find out that there is a new update for Z80.1 for the tolerance of sphere power, cylinder power, and cylinder axis. So I...

I think that I understand these! But in the book, it says "target center location always corresponds to prism base direction. This is true whether the lens is plus or minus in power" What does it...

Can you give me more details? I really don't get it.
Here is what I think:
1. For plus lens, the OC will move in the same direction as the base direction. For example, when a plus lens 2^ Base Out;...

Thanks gemstone for a quick respond. That is exactly what I thought, but when I read the solution in the book it said “Target center location always corresponds to prism base direction. This is true...

Prism Confusion – Please Help!
When verifying the prescribed Prism, I’m confused with plus and minus lens. I hope that someone can help me out on this. Here is the example.

EXAMPLE:
...