What to Expect From the Vision Test at Your DMV Appointment

What the DMV vision test checks

The DMV vision test measures your ability to see clearly enough to drive safely. It is not a full eye exam — the DMV does not diagnose eye disease or prescribe glasses. The test checks visual acuity (how sharp your vision is), peripheral vision (what you can see to the sides), and sometimes color blindness.

The standard test uses a wall-mounted chart with letters or symbols that get smaller as you read down. You read from a set distance, usually 20 feet. The DMV records whether you can read the line that corresponds to 20/40 vision or better. Some states also test each eye separately and together, and a few test your ability to see red and green lights.

The vision test is separate from the written knowledge test and the driving test. You will take it at your appointment before or after those tests, depending on your state's order. If you fail, you usually get a second chance the same day or at a follow-up visit.

Key Takeaways

The DMV vision test checks how clearly you can see letters on a chart from 20 feet away, not whether you need glasses.
You must see 20/40 or better to pass in most states, though some states set the standard at 20/60 or allow corrective lenses to meet it.
Bring your current glasses or contacts if you wear them, because the test measures your vision with correction if you normally drive with it.
If you fail, you can usually retake the test the same day or schedule another appointment, and you may be asked to see an eye doctor before trying again.
The vision test takes two to five minutes and is the quickest part of your DMV visit.

Vision standards by state

Most states require 20/40 vision or better to pass the DMV vision test. A few states allow 20/60 with corrective lenses, and some have different standards for different license types — for example, a commercial driver's license may require sharper vision than a regular license.

Some states test color vision as part of the standard test. Others test it only if you are renewing a commercial license or if the examiner suspects a problem. A handful of states do not test color vision at all. If you are colorblind, you can still get a regular driver's license in every state, but some restrict commercial driving.

Peripheral vision requirements also vary. Most states do not formally test peripheral vision, but some require at least 70 degrees of vision to each side. If you have had eye surgery, an accident, or a condition that affects your side vision, ask your DMV office what their standard is before your appointment.

What to bring and how to prepare

Bring your current glasses or contact lenses if you wear them while driving. The test measures your vision with correction, not without it. If you wear bifocals or progressive lenses, tell the examiner before the test starts so they know to position the chart at the right height.

If you wear contact lenses, put them in before you arrive. Do not plan to insert them at the DMV — most offices do not have a place for this, and you may not have time. If a lens falls out during the test, you can ask to retake it, but it is easier to arrive ready.

If you have had recent eye surgery or a change in your vision, bring documentation from your eye doctor. Some states ask for a letter if your vision is close to the passing line or if you have a condition that affects your sight. This is not required in all states, but having it on hand can speed things up if there is a question.

What happens if you fail the vision test

If you do not pass the vision test, the DMV will tell you your result and what the passing standard is. You will not be issued a license that day. In most states, you can retake the test when ready or within a few days at no extra cost.

Some states require you to see an eye doctor and bring a report before you can retake the test. Others let you retake it right away. Ask the examiner which applies to you. If you know your vision is not sharp, scheduling an eye exam before your DMV appointment can save you a trip.

If you fail a second time, most states will not let you test again for 30 to 90 days. You will need to see an eye doctor and get a written statement that your vision meets the state standard before you can return. Some states require the eye doctor to submit the report directly to the DMV.

Corrective lenses and vision restrictions

If you pass the vision test only while wearing glasses or contacts, your license will carry a restriction code. This means you are legally required to wear correction while driving. Driving without your glasses or contacts when the restriction is on your license is a violation, even if you think you can see well enough.

Restriction codes vary by state. Some states print "Corrective Lenses Required" on the front of the license. Others use a code number that appears on the back. Either way, a police officer can cite you for driving without correction if your license has the restriction.

If your vision improves — for example, after surgery — you can request a new vision test at your next renewal or at any time by visiting your local DMV office. Some states charge a small fee for an out-of-cycle test; others do it free.

Common reasons people fail the vision test

The most common reason for failure is not wearing current glasses or contacts. If your prescription has changed since your last eye exam, the DMV test will catch it. If you have not had an eye exam in more than a year, consider scheduling one before your DMV appointment.

Cataracts, glaucoma, macular degeneration, and diabetic retinopathy can all affect your ability to pass. If you have any of these conditions, your eye doctor can tell you whether your vision meets the DMV standard. Some conditions progress slowly, and you may not notice the change in your daily life.

Anxiety and unfamiliarity with the test format also cause failures. The chart is small, the room lighting varies, and some people freeze when they cannot read a line clearly. If you are nervous, tell the examiner. They can explain the process and may let you take a moment between lines.

What to do if you wear specialty lenses

If you wear progressive lenses, bifocals, or trifocals, position yourself so you can see the chart through the distance part of the lens. Tell the examiner what type of lenses you have. They may adjust the chart height or let you step back slightly to help you see clearly.

If you wear keratoconus lenses, scleral lenses, or other specialty contacts, bring a letter from your eye doctor stating that your vision with those lenses meets the state standard. Some DMV examiners are not familiar with these lenses and may not know how to interpret the test result.

If you have had refractive surgery like LASIK or PRK, your vision may fluctuate slightly for several months after the procedure. If you are within that window, wait until your vision has stabilized before taking the DMV test. Your eye doctor can tell you when that is.

Frequently Asked Questions

Can I take the vision test without my glasses if I usually wear them?

You can, but you will likely fail. The test measures your vision with the correction you normally use while driving. If you wear glasses or contacts, wear them to the test. If you pass without them, that is fine — but if you fail, you cannot retake it the same day without them.

What is 20/40 vision?

It means you can see at 20 feet what a person with standard vision can see at 40 feet. In other words, your vision is half as sharp as the standard. Most states accept 20/40 as the minimum to pass. If your vision is 20/50 or worse, you will not pass in most states.

Do I need a note from my eye doctor to pass the vision test?

Not usually. The DMV examiner will test your vision and tell you whether you pass. You only need a note from an eye doctor if you fail and your state requires one before you can retake the test, or if you have a condition that might affect the test result.

What if I fail the vision test twice?

Most states will not let you test again for 30 to 90 days. You will need to see an eye doctor and get a written statement that your vision meets the state standard. Some states require the eye doctor to send the report directly to the DMV before you can schedule another test.

Can I wear sunglasses during the vision test?

No. The examiner needs to see your eyes clearly, and the chart is indoors under controlled lighting. Remove sunglasses and any tinted eyewear before the test. If you have light sensitivity, tell the examiner — they may be able to adjust the lighting or give you a moment to adjust.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.