PM me and i can give you some specifics if needed. Short story, I went through this 10 years ago, failed red lens test. After a 3 day eval at Brooks, they determined I had mild esophoria of the right eye, normal, normal on everything else ie 20/10 vision etc. There is a study group ongoing in the AF (several dozen of us??). If everything else checks out, they will give you a waiver, put you in the study group, and you'll have to follow up once a year taking various tests (intra-ocular pressure, Humphrey visual field test, etc.) This is done to see if the condition worsens with age. Mine was determined to be congenital (since birth).