What your state requires for driving vision

Most states require you to meet a minimum vision standard to hold a driver's license, but the standard itself varies by state. The most common requirement is 20/40 vision or better in at least one eye, though some states ask for 20/30 or even 20/20. A few states have no specific vision requirement written into law, though they can still suspend your license if an officer observes that you cannot see the road safely.

If you cannot meet the standard with your natural vision, you can usually correct it with glasses, contact lenses, or both. The key phrase on most license applications is "corrected vision" — meaning vision with correction devices in place. When you take your vision test at the DMV, you wear whatever correction you normally use while driving. If you pass that test, your license is valid as long as you wear those glasses or contacts while driving.

Some states will note on your license itself that correction is required. You might see a restriction code like "B" (corrective lenses required) printed on the front or back. This is a legal reminder to you and a signal to police that you must wear your glasses every time you drive.

Key Takeaways

  • Most states test your vision at the DMV and accept corrected vision (with glasses or contacts) to meet the requirement.
  • The minimum standard ranges from 20/30 to 20/40 depending on your state, but you can find your state's exact requirement on the DMV website.
  • If your license shows a restriction code for corrective lenses, you are legally required to wear your glasses or contacts every time you drive.
  • You may need to renew your vision test when you renew your license, and some states require it more often if you are over a certain age.

How the vision test works at the DMV

When you visit the DMV to get a new license or renew an existing one, a staff member will ask you to read letters or numbers on a chart from a set distance — usually about 20 feet away. You read the smallest line you can see clearly. If you normally wear glasses or contacts, you wear them during this test. The examiner records what you can see with correction.

If you cannot meet your state's minimum standard even with correction, the DMV will not issue you a license. At that point, you have a few options: you can ask for a retest on another day, you can ask whether a different type of correction (such as switching from glasses to contacts) might help, or you can explore whether your state offers a restricted license for limited driving.

Some states also test your peripheral vision — how much you can see to the sides without moving your eyes — because side vision matters for spotting other vehicles and pedestrians. The equipment and methods vary, but the DMV staff will walk you through whatever test your state uses.

Restrictions and conditions on your license

If you pass the vision test while wearing glasses, your license will typically include a restriction that you must wear corrective lenses while driving. This restriction is legally binding. Driving without your glasses when the restriction is in place is a violation, and police can cite you for it even if your driving was otherwise safe.

Some states also place restrictions based on the type of vision problem you have. For example, if you have very limited peripheral vision, your state might restrict you from driving at night, or might require you to use outside mirrors in a certain way. These restrictions appear as codes on your license — your DMV can explain what each code means for your specific license.

If your vision changes significantly — either it gets worse or you have eye surgery that changes how you see — you should contact your state DMV. Some states require you to report major vision changes. Failing to do so and then driving without proper correction could result in a license suspension or a citation if you are stopped.

When you need to renew your vision test

Most states require you to pass a vision test when you renew your driver's license. The renewal cycle is typically every four to eight years, depending on your state and your age. Some states require more frequent renewals for drivers over 70 or 80, which means more frequent vision tests as well.

A few states allow you to renew by mail or online without a vision test, but they usually require you to certify that your vision has not changed significantly. If you know your vision has gotten worse, you should visit the DMV in person rather than renewing by mail, because showing up with outdated vision information on your license creates a legal problem if you are ever in an accident or stopped by police.

If you fail the vision test at renewal time, the DMV will not renew your license until you either pass with correction or provide documentation from an eye doctor showing that you have been treated and now meet the standard.

What to do if you cannot meet the vision standard

If you fail the vision test even with your current glasses or contacts, your first step is to see an eye doctor. Your prescription may have changed, or you may benefit from a different type of correction. Some people find that contacts work better than glasses for their particular vision problem, or vice versa. An eye doctor can test you and determine whether a new prescription or a different correction method would help you meet your state's standard.

If an eye doctor confirms that you cannot meet your state's minimum vision standard even with the best possible correction, some states offer a restricted license. A restricted license might allow you to drive only during daylight hours, only on certain roads, or only within a certain distance from your home. The restrictions depend on your specific vision limitation and your state's rules. Contact your state DMV to ask whether a restricted license is an option for you.

If you cannot get a license at all, you have other transportation options: public transit, ride-sharing services, taxis, or asking friends and family for rides. Many communities also offer paratransit services for people who cannot drive due to vision or other disabilities.

Glasses, contacts, and other correction options

Glasses and contact lenses are the most common ways to correct vision for driving. Both are equally valid for the DMV vision test — you just need to wear whichever one you plan to use while driving. Some people wear glasses for driving and contacts for other activities, or vice versa. Whatever you choose, make sure it is what you actually wear when you are behind the wheel.

If you wear bifocals or progressive lenses (glasses that have different powers in different parts of the lens), that is fine for driving. Just make sure you can see the road clearly through the part of the lens you use when looking straight ahead. If your bifocals or progressives make it hard to see the dashboard or the road, talk to your eye doctor about adjusting the lens design.

Some people use specialized driving glasses — lenses with anti-glare coatings or tinted lenses that reduce glare from headlights or sunlight. These are not required, but they can make driving safer and more comfortable if glare is a problem for you. They do not change whether you meet the vision standard; they just improve your comfort and safety.

How vision problems affect your driving safety

Vision is one of the most important tools you have as a driver. Poor vision increases your risk of missing other vehicles, pedestrians, road signs, and hazards. It also makes it harder to judge distance and speed, which affects your ability to merge, pass, and brake safely. This is why states have vision standards in the first place — they are based on research about what level of vision is needed to drive safely.

If you notice that your vision is getting worse — for example, you are having trouble reading street signs, or you feel less confident driving at night — do not wait until your license renewal to get your eyes checked. See an eye doctor as soon as you can. A new prescription or a change in your correction method might make a big difference in how safely and comfortably you can drive.

If you have a vision condition that comes and goes — such as migraines that temporarily blur your vision, or a condition that affects your sight unpredictably — talk to your eye doctor about whether it is safe for you to drive. Some conditions may require you to avoid driving during flare-ups or to use special precautions.

Frequently Asked Questions

Can I wear sunglasses while driving to pass the vision test?

No. The DMV vision test must be done without sunglasses so the examiner can see your eyes clearly and measure your vision accurately. However, you can wear regular sunglasses while driving if you need them to reduce glare. Just make sure they do not block your vision of the road or dashboard.

What if I got my license in another state and moved — do I need a new vision test?

When you transfer your license to a new state, that state's DMV will usually require you to take a new vision test to make sure you meet their specific standard. Some states accept an out-of-state license for a short time before requiring a transfer, but you should check your new state's DMV website to find out the exact timeline and requirements.

Do I have to tell the DMV if my vision got worse since I got my license?

You are not required to report a vision change in most states, but you should not drive if you know your vision no longer meets the standard. If you are stopped by police and your vision is significantly worse than what your license shows, you could be cited. The safest approach is to get your eyes checked and update your license if needed.

Can I drive with one eye if I meet the vision standard?

Yes, if you have vision in only one eye but that eye meets your state's minimum standard (usually 20/40 or better), you can get a license. However, some states may place restrictions on your license, such as requiring wider mirrors or limiting night driving. Ask your DMV what restrictions explore to single-eye vision in your state.

What happens if I fail the vision test but I think the equipment was wrong?

You can ask for a retest, usually on another day. If you fail again, ask the DMV whether you can bring a letter from your eye doctor showing your current prescription and vision level. Some states will accept an eye doctor's documentation in place of a retest. If you believe the DMV equipment itself is faulty, you can file a complaint with your state's DMV office.