Blinkz
From what I can gather many of the staff in the Aeromedical Centre are themselves pilots. There sees to be a genuine desire to encourage you and for you to succeed.
Make sure you are rested, as has been said. No playing computer games, reading or staring at a screen for long hours in the 48 hours before the examination. Make sure your eyes are really rested. If you have any concern about eyesight then they will do that part of the test first so that if you do fail you only get charged about £40 and the rest is refunded. If you have any concerns as to hearing then use that stuff Boots sell to clear out you ears.
I also suggest staying off large amounts of alcohol in the days before the test and not to much caffeen, as this can affect the heart rate though I don't think it can actually generate any abnormality in a short space of time.
Try not to drive yourself there: sometimes the optometerist uses drops to dilate the pupils which will affect vision for 4-5 hours at least.
Finally - good luck
