You will take an eye test at the DMV before you get your license

Every state requires an eye test as part of the driver's license process. The test happens at your local DMV office, usually right before or after you take the written exam or road test. It takes about five minutes and checks whether you can see well enough to drive safely.

The test does not require an appointment at most DMVs, though some states now let you book one online. You will look into a machine called a vision screener or autorefractor, read letters or numbers on a chart, and answer a few questions about your eyesight. If you wear glasses or contacts, bring them with you — the test measures your vision with the correction you actually use while driving.

If you fail the eye test, you can retake it the same day at most DMVs, or come back another time. Failing does not automatically disqualify you from getting a license; it means you need to see an eye doctor first and bring proof that your vision meets the state's standard.

Key Takeaways

  • The eye test is a quick machine-based screening that checks whether you can see well enough to drive safely in your state.
  • You take the test at the DMV on the same day as your written or road test, and it takes about five minutes.
  • Bring your glasses or contacts if you wear them, because the test measures the vision you actually use while driving.
  • If you fail, you can retake it the same day or return later; failing does not automatically stop you from getting a license.
  • Some states restrict your license based on your test results — for example, requiring you to wear corrective lenses while driving.

What the vision screener measures

The machine tests your visual acuity, which is how clearly you can see at a standard distance. The standard for driving is usually 20/40 vision or better in at least one eye, though some states require 20/30. The numbers mean that what you see clearly at 20 feet, a person with perfect vision can see clearly at 40 feet — so 20/40 is considered adequate but not perfect.

The screener also checks your peripheral vision — what you can see to the sides without moving your eyes — because you need this to spot other cars, pedestrians, and road signs while driving. Some machines test color vision as well, though this is less common and varies by state.

You will look into the machine and focus on a target inside. The machine takes a reading automatically; you do not have to read anything aloud or press buttons. The whole process takes two to three minutes. After the machine reading, a DMV employee may ask you to read letters on a wall chart to confirm the results.

Bring your glasses or contacts

If you wear glasses or contacts while driving, wear them to the DMV. The eye test measures the vision you actually have while behind the wheel, not your uncorrected vision. If you wear them sometimes but not always, wear them to the test — the DMV wants to know what you see with the correction you use.

If you wear bifocals or progressive lenses, let the DMV employee know before the test starts. They may ask you to position your head slightly differently so the machine reads through the correct part of your lens.

If you have recently changed your glasses prescription or gotten new contacts, use the new ones for the test. An outdated prescription can cause you to fail even if your current vision is fine.

What happens if you fail the eye test

Failing the vision screener does not mean you cannot get a driver's license. It means you need to see an eye doctor and bring documentation that your vision meets your state's standard. Most states accept a letter from an optometrist or ophthalmologist stating your corrected vision and confirming you are safe to drive.

You can usually retake the DMV eye test on the same day if you want to try again when ready, though this rarely helps unless something went wrong the first time — like you were nervous or the machine did not read correctly. The better path is to schedule an eye exam with a doctor, get a new prescription if you need one, and return to the DMV with the doctor's letter.

Some states allow you to bring the eye doctor's letter without retaking the DMV test. Others require you to retake the DMV screening after you have seen the doctor. Check your state's DMV website to see which applies to you.

Restrictions based on your eye test results

Depending on your test results, your license may come with restrictions. The most common is a requirement to wear corrective lenses while driving — your license will say "Corrective Lenses Required" or similar language. This is a legal requirement; driving without your glasses or contacts when your license says you must wear them can result in a ticket.

Some states also restrict you to daytime driving only if your test shows poor night vision, or limit you to local roads if your peripheral vision is reduced. These restrictions appear on the front or back of your license card. You must follow them; violating a license restriction can lead to fines or license suspension.

If you later get a new prescription or have eye surgery that improves your vision, you can request that the restriction be removed. You will need to retake the eye test at the DMV and pass it without correction, or bring a letter from your eye doctor confirming the change.

Eye test requirements vary by state

Most states use the 20/40 standard, but some require 20/30 or better. A few states have different standards for different license types — for example, commercial driver's license holders may need better vision than regular drivers. Your state's DMV website lists the exact standard for your state.

Some states test color vision as part of the standard screening; others only test it if you are getting a commercial license. A small number of states do not test color vision at all. If you are colorblind, this does not automatically disqualify you, but some states may restrict your license or require additional testing.

The age at which you first take the eye test also varies. Most states test vision when you get your learner's permit, and again when you get your full license. A few states only test at the full license stage. Check your state's DMV website or call your local office to confirm when you will be tested.

Preparing for the eye test

There is little you need to do to prepare. Wear your glasses or contacts if you use them. Get a good night's sleep the night before so your eyes are not tired. If you have been staring at a screen all day, take a break for an hour or two before you go to the DMV — eye strain can temporarily affect your vision.

If you know your vision is poor or has changed recently, see an eye doctor before you go to the DMV. Getting a new prescription ahead of time means you can take the test with your correct lenses and avoid a failed result. This also gives you time to adjust to new glasses if you need them.

Bring your learner's permit or ID, your proof of residency, and any other documents your state requires for your license process. The eye test is just one part of the process, and you will need these documents to complete it.

Frequently Asked Questions

Can I wear sunglasses during the eye test?

No. You must remove sunglasses and any tinted eyewear for the test. The machine needs to see your eyes clearly, and tinted lenses interfere with the reading. If you wear prescription sunglasses, bring your regular glasses instead.

What if I have never had an eye exam and do not know if I will pass?

See an eye doctor before you go to the DMV. An exam costs between $50 and $200 depending on where you go, and it tells you whether you meet your state's vision standard. If you do not, the doctor can prescribe glasses or contacts. This is faster and cheaper than failing at the DMV and having to come back.

Do I have to retake the eye test when I renew my license?

Most states require an eye test every time you renew, though some allow you to skip it if you renewed recently. A few states only test at certain renewal intervals. Check your state's DMV website or ask when you renew.

What if I have a medical condition that affects my vision?

Tell the DMV employee before the test. Conditions like cataracts, diabetic retinopathy, or macular degeneration may affect your results. The DMV may require a letter from your eye doctor confirming that you are still safe to drive, or they may restrict your license based on the condition.

Can I take the eye test online or by mail?

No. The eye test must be done in person at a DMV office using their vision screening machine. Some states let you schedule an appointment online, but you still have to show up at the office to take the test.