To pass a DMV eye exam, visit a DMV office and read the necessary lines on the Snellen Chart. The minimum acceptable visual acuity is 20/40, so one must be able to read the line corresponding to that level of vision. The DMV also offers the Optec 1000 vision tester as an alternative to the Snellen Chart.
The Snellen Chart has multiple lines of letters, and each line indicates a certain visual acuity. Drivers must be able to read the 20/40 line with both eyes open.
To use the Optec 1000, look into the machine. When the machine displays an object, tell the tester what it is. The machine simulates a 26-foot room.
Those that don't pass the eye test must see an eye doctor for an examination. The eye doctor determines any necessary vision corrections, such as glasses, contacts or corrective surgery, and fills out a form, which the driver then takes back to the DMV.
The DMV requires drivers to take another eye test when bringing back the form. Drivers are able to wear glasses or contacts. If the driver wears these and passes, the DMV makes a note on that driver's license indicating that the driver requires corrective lenses. If the driver still can't pass the vision test, the DMV schedules a supplemental driving exam to determine if the driver is able to compensate for his vision issues enough to drive.