Is the FALANT test the one where there are three lights in a vertical line and you have to tell what color light is on? If so, you might have to take a "plate test" like the link in the first post and still take the FALANT even if you ace the plate test. That's what happened to me, and even though I thought the plate test was pretty simple, the colored-light test was significantly easier. Also, those depth perception machines are kinda tricky - if your eyes aren't lined up just right on the eyepiece then everything looks off a little bit. Remember, if you think your eyes are better than what they tell you at MEPS you can always go get a civilian professional to check you out. Well worth the cost, in my opinion. You're SOL if you are colorblind and/or have no depth perception, but definitely get a second opinion if you don't pass at MEPS.