I had a quick question about the falant or optec 900 test. I'm not trying to be a pilot, i'm in the process of going thru aircrew school, but i recently failed the falant test during my full flight physical. The surprise was, i have had several physicals, including two flight physicals where this test was no problem, this is actually the first time i've failed it. I know there is a slight deficiancy there, but i didnt think it was to a degree i'd ever fail this test. They might be giving me a second chance, and i wanted to make sure im not doing anything i shouldnt be doing before the test, or doing absolutely everything possible to ensure my color perception was at its best. I felt tired during my physical here at nami, we had to fast for 12 hours, and we had the regular eye exam before the color test so i had lights shined in my eyes a few times also. I know i should be hydrated as well as possible, stay away from alcohol, ect, but anything else i can be doing? I know its a pass fail, and pilots shouldnt be playing around to squeeze by this test, but i'm fighting for my career here just so i can ride in the back and load cargo, it took 5 years in the navy to even get to this point and i cant lose this opportunity.. Thanks for the help..