No, take your glasses or contact lenses along to your vision test and wear them for the test.
You will be given a form to take to your vision specialist that must be completed and returned before you can continue with your application or renewal. If you are attempting to renew a commercial licence and fail the vision test your licence will be downgraded to Class G until this form is returned.
The standards differ depending on the type of licence; for passenger vehicle, motorcycle and driving instructor licences your vision must not be poorer than 20/50, but for commercial licences it must not be poorer than 20/30.
No, this is free of charge.
You must visit a DriveTest Centre and either complete a vision test or submit a completed vision form from your vision specialist completed less than six months previously.