Not everyone needs an ADD value on their prescription as it’s typically only used for multifocal lenses or reading glasses. If you’re under the age of 40 and/or don’t have presbyopia, your prescription won’t usually include an ADD power. However, certain eye test reports may (sneakily) include your ADD without actually stating it. This occasionally happens where your eye test report has three single vision prescriptions; one for your distance, intermediate, and near vision, with no ADD value. In this case, you’ll need to calculate your near or intermediate ADD power.