To pass the driver’s license eye test at the DMV, you generally need corrected visual acuity of at least 20/40 in one or both eyes, and the screening itself takes less than a minute at the counter. The examiner checks how sharply you see detail at a distance, how wide your field of vision is, and in some states whether you can tell red, green, and amber apart. Failing doesn’t end your driving; it sends you to an eye doctor with a referral form.
What the Test Checks
Visual Acuity
Acuity is how sharply you see detail at a distance. The benchmark in nearly every state is 20/40, meaning you can read at 20 feet what someone with standard vision reads at 40 feet. You’re tested with each eye on its own and sometimes with both together. If you wear glasses or contacts, you test with them on. Some states will issue a restricted license at 20/50 or 20/60, with conditions such as daylight-only driving attached.
Peripheral Vision
Peripheral vision is how far to the sides you can see while looking straight ahead. It matters because merging traffic, pedestrians, and cyclists often approach from an angle. Requirements vary by state: some measure each eye separately and look for at least 70 degrees per eye, while others measure the combined binocular field and set the floor somewhere between 105 and 150 degrees. A significant shortfall usually brings restrictions or a referral for further evaluation.
Color Recognition
A handful of states also screen for the ability to tell red, green, and amber apart, because those are the signal colors at every intersection. Color blindness on its own rarely disqualifies someone from a standard passenger license. It is a firm requirement for commercial drivers under federal rules.
How the Screening Works
The test happens at the service counter or a small testing station, not in a separate exam room. In most offices, you look into a tabletop device that displays rows of letters or numbers at simulated distances. Some locations still use a traditional wall chart posted 20 feet away. Either way, the examiner asks you to cover one eye and read the smallest line you can make out, then switch.
The device may flash small lights at the edges of your field of view to check peripheral vision. The whole sequence usually wraps up inside a minute, and the examiner enters the results straight into the licensing system. Pass, and you move on to the next step of your application. Don’t pass, and the examiner hands you a referral form for an eye doctor.
What to Bring
Bring your glasses or contacts if you wear them. Showing up without the corrective lenses you need to hit 20/40 means an automatic referral and another trip. There is no talking your way past the machine.
Most states also let you skip the in-office screening by submitting a vision report completed by a licensed optometrist or ophthalmologist. Each state has its own version of the form, posted on the state DMV’s website. The form typically has to be completed within a set window before your application date, often six to twelve months depending on the state. Confirm the doctor signs and dates it, because DMV staff reject incomplete forms without hesitation.
What Happens If You Fail
Failing the DMV screening is not the end of the road. The examiner gives you a referral form to take to an optometrist or ophthalmologist. That doctor runs a fuller exam, fills out the state’s official vision report, and documents your corrected acuity and peripheral field. You bring the completed form back to the DMV.
If the professional exam shows you meet the minimum standards with corrective lenses, you’ll usually get a license with a corrective lens restriction. If you fall below the standard even with correction, the DMV’s medical review unit decides whether a restricted license is appropriate. That review can take several weeks. In some states, you can request a hearing to present additional medical evidence if the initial decision goes against you. The in-office screening is a first pass, not a final verdict. Plenty of people fail the quick test and drive home a few weeks later with a valid license and a fresh pair of glasses.
Common License Restrictions
Corrective Lenses
If you pass only while wearing glasses or contacts, your license will carry a corrective lens restriction, commonly coded “Restriction B.” You cannot legally drive without your corrective lenses. An officer can check for the restriction during any traffic stop, and driving without your glasses when your license requires them is a citable offense. In some states, the violation is classified as a misdemeanor rather than a simple traffic ticket.
Daylight Driving Only
Drivers whose corrected acuity falls roughly in the 20/50 to 20/70 range, depending on the state, may receive a license restricted to daylight hours. Marginal vision that’s adequate in bright conditions becomes dangerous at night, when contrast drops and headlight glare takes over. The restriction limits you to driving between sunrise and sunset, and violating it carries the same penalties as any other restriction violation.
Added Mirrors
When a medical professional or road test examiner finds limited peripheral vision or single-eye vision, the state may require additional side-view mirrors on your vehicle to cover blind spots that standard mirrors miss. The requirement stays on your license until a new exam shows your field of vision has improved, which in practice rarely changes without corrective surgery.
Removing a Restriction After Vision Surgery
If you’ve had LASIK or another corrective procedure and no longer need glasses, the restriction doesn’t fall off your license on its own. You have to visit the DMV in person and retake the vision screening without corrective lenses. A letter from your surgeon won’t do it. The DMV wants to see you pass the same machine test every other applicant takes. Pass at 20/40 or better without lenses and the restriction comes off, usually for a small replacement-license fee. Until you take that step, the restriction stays on your record, and you can still be cited for driving without corrective lenses you no longer need.
Vision Retesting at Renewal
Your eyes change over time, and licensing agencies know it. Many states require a vision test at every renewal, not only at first application. More than half the states apply different renewal rules to drivers over a specified age, typically 65 or 70, and 19 states require more frequent vision screenings for older drivers specifically.1National Highway Traffic Safety Administration. In-Person Renewal and Vision Test Age-triggered rules exist because cataracts, macular degeneration, and glaucoma develop gradually. A driver who tested at 20/30 a decade ago can be well below 20/40 today without noticing.
Failing the screening at renewal plays out the same way as a first-time failure: referral, eye doctor, documentation, return. Your existing license usually remains valid during that window, though some states issue a temporary extension rather than a full renewal until the vision issue is resolved.
Commercial Drivers Are a Separate Standard
Commercial driver’s license holders are held to stricter federal vision standards set by the Federal Motor Carrier Safety Administration, not the DMV counter rules above. Commercial drivers must have at least 20/40 acuity in each eye individually and 20/40 binocular acuity, a horizontal field of at least 70 degrees in each eye, and the ability to recognize red, green, and amber signal colors.2eCFR. 49 CFR 391.41 – Physical Qualifications for Drivers Color recognition is not optional for commercial operators. These standards are verified during the DOT physical exam by a certified medical examiner, and if a commercial driver’s vision drops below the thresholds, the medical certificate won’t be renewed and the CDL becomes inactive until the driver can show compliance.