The chart used for driver's license vision tests follows a similar sequence of sizing for letters, but the actual letters or numbers on the chart may vary in each state. The standard chart is a variation of the Snellen eye chart that features 11 rows of capital letters.
The standard eye chart includes the largest letters showcased on the top row and the smallest letters on the bottom row. During an eye exam at a state Department of Motor Vehicle's office, individuals must name the letters they can see clearly. State standards may vary, but in most states within the United States, a driver with 20/40 or greater vision in both eyes can receive a license that does not require restrictions such as the use of corrective lenses.