A320-wannabe,
You will have to ring the CAA and ask them what the exact visual requirements are.They are the only people that can help you in deciding what the best course of action is.
Firstly go to your opticians and have an eye test,this will give you information for the caa. Ask them about laser surgery, ( you might not need it at all!!), don't tell them that you might have it done, just get information.
If you do decide to have any sort of operation on your eyes, you will have to have a years down time before they will give you a Class 1 medical !!,but you can fly on a Class 2 med.
Just give them a ring!!
Good luck
Mackey