If you can't read the sign at the test without your glasses, then NOT wearing them will mean you don't pass the test.
You don't pass, you don't get license.
Bring them with you. If you can't read the letters, then put them on. Once you pass the tests, (including the vision test) you will get issued a license that states you must wear corrective lenses while driving.
No big deal. The DMV (or the rest of us) does not want drivers who can't see behind the wheel of a vehicle.
Certified Instructor, National Safety Council Defensive Driving Course 4