Hello Stace,
Firstly, let me reassure you in the words of Andrew's signature: DON'T PANIC.
Secondly, let me reassure you that you're not alone in fainting. I'm just the same
When I was first diagnosed with KC, I was sitting in the optician's chair in Boots, and the optician turned away and started writing up her notes. Next thing I know is that she's struggling to lift me up on to the chair whilst yelling for assistance.
I also fainted about 5 minutes AFTER my BCG injection! Oh, and (famously recorded on the DVD) during John Dart's talk at the last conference!
Claire is dead right (you can usually trust a nurse's opinion, but don't tell her that - it will go to her head!) you probably fainted once it was all over because you are either squeamish about your eyes (many people are) or were just wound up about the whole thing. Once the worst of it is over, the body relaxes... sometimes too much.
It won't be as bad next time, I promise. Even if you do start to feel that queasy feeling, tell someone straight away and sit on the floor. That way you won't hurt yourself if you do faint and also the act of doing that can take your mind off the problem sufficiently to make the faint go away.
Yes, the lenses can be uncomfortable to begin with, but you will get used to them, and you won't keep fainting either!
My advice would be to try and get the April appointment back - simply the anticpation of a nasty event can make it all the more horrific. But please do take a parent, teacher or reliable older friend with you - or even ask for a nurse to sit with you!
Above all, keep smiling - and trust me, you'll be laughing about the whole thing sooner than you think.
Feel free to PM me if you want to chat.
John