Unreg; for the color blindness test, typically the
Ishihara Plates are used.
But be aware that there are ways that the staff will unintentionally stack the deck against your success. The primary one being is making you do the test under office fluorescent lighting.
The tests were designed to be done in normal sunlight. Office lighting isn't sunlight (duh!) and can have it's own color that will throw off the test. So if you don't do well on the plates, remind them this is for use in sunlight and ask to do the test outdoors. or near a window where the sunlight will "overwhelm" the office light.
The other way is that the plates are very old and have faded. IIRC correctly, Dr. Bruce Chien mentioned these books are expensive to replace, and with active AME's, get lots of use. And if they are the lower cost version, the ink and paper deteriorates faster than the higher quality version.
So if you don't do well on the color tests, ask the AME if you can be evaluated by an Ophthalmologist and have his report be included in your record.
As far as acuity, my AME had the "Large E" poster on the wall. I typically just did the Space Cowboy's thing and memorized it. LEFODPCT is the 20/15 line.