I didn't pass the vision test at the Kansas City PEPC on 11/18/08. At the end of the entire day, you meet one-on-one with a Regional Flight Surgeon who reviews all of your individual exams and on a top-level scale overall passes you or sends you home to get additional testing with a specialist. In my case, I needed to meet with an ophthalmologist (eye surgeon) and fax a completed FAA Form 8500-7 (
http://forms.faa.gov/forms/faa8500-7.pdf) back to the Central Region medical division.
Another thread about my experience can be found here:
http://forums.jetcareers.com/ask-flight-surgeon/72886-eye-test-during-medical-exam.html
The eye doctor I visited wrote down all of the objective test results that the form asks for, and in a Comments/Suggestions section, he noted that my ability to work as an air traffic controller should not be affected by my vision. Now I'm waiting for notification of a medical clearance after additional consideration. It may take longer to receive a Final Offer Letter, but better late than never. We are the masters at the waiting game!