The only way to take the Farnsworth Lantern test nearby was to go to Berkeley and pay $175 for full color vision testing, and it was there that I was told I'm likely a dichromat. At this point nobody from the FAA wants to talk to me until I receive an official failure from Oklahoma City. It sounds like the only course of action from there is to write the head doctor a letter as he is not reachable by phone or email. I'm mainly frustrated because I feel like any pilot will get into major trouble if they cannot read a chart, especially in my home area with KSFO, KSJC, and KOAK, and since I've avoided busting into any airspace or flying into any mountains then I likely am completely able to read a chart, regardless of what the FAA thinks. If anyone knows of a better way to talk to someone from Aeromedical that isn't a phone operator and is accessible by phone or email I'd appreciate it.