I ordered the progressive lenses, why is there only one ADD value on my prescription? Kevin November 27, 2019 14:58 Updated Follow The reason behind the only one ADD value progressive glasses is that it applies to both lenses. Related articles What is ADD? Knowledge about Eyeglasses Prescription Can you fill in strong prescriptions? Common Mistakes When Cleaning Your Glasses Could I get some one-on-one assistance? Comments 0 comments Please sign in to leave a comment.