Class 1 worries - no need
The set up is very professional down at Gatwick, you do feel a bit of a prat wearing a small ladies bath robe for a couple of hours! (well maybe that was just me?)
The worst part was the EEG but I belive that has now been removed from the exam.
The eye site exam was very strict lasting about 40 mins and certain people have dye placed in the eye to dilate the pupil, this was no fun!
My advice would be to take the class 1 eye site requirments to your local opt. and get them to take a look at you and if you have not already got a class 2 book in with your GP and have a the basics looked at just to put your mind at rest.
JL..............