The eye test is a quick vision screening that happens before or during your road test appointment

Your state's Department of Motor Vehicles (DMV) or equivalent agency requires an eye test as part of the driver license process. This test checks whether you can see well enough to drive safely. It typically takes 2 to 5 minutes and uses a machine called a vision screener or an eye chart. You will read letters or numbers at a set distance, usually 20 feet away. If you wear glasses or contacts, you wear them during the test — the examiner is checking your corrected vision, not your natural eyesight.

The test happens at the same location where you take your road test, usually at a DMV office or a third-party testing site. It is one of the first things the examiner does, before you even get behind the wheel. If you fail the vision screening, you will not be allowed to take the road test that day, and you will need to return after your vision has been corrected.

Key Takeaways

  • The vision test checks whether you can read letters or numbers from 20 feet away, and you should wear your glasses or contacts if you normally do.
  • Most states require a minimum vision standard, often 20/40 or better in at least one eye, though this varies by state.
  • If you fail the vision test, you cannot take the road test that day and must return after seeing an eye doctor.
  • Bring your current glasses or contacts to your appointment, even if you do not usually wear them while driving.
  • Some states allow you to take the vision test at an eye doctor's office and bring the results to your DMV appointment.

What the vision test actually measures

The examiner is checking your visual acuity — how clearly you can see at a distance. The standard measurement is written as a fraction, like 20/40 or 20/20. The first number is always 20, meaning 20 feet away. The second number is what a person with normal vision can read from that distance. So 20/40 means you can read at 20 feet what a person with normal vision reads at 40 feet. You are seeing less detail than average.

Most states require a minimum of 20/40 vision in at least one eye to hold a driver license. Some states require 20/30 or better. A few states have different standards for different license types — for example, a commercial driver license might require 20/25. Check your state's DMV website to find the exact requirement, because it varies.

The test does not check for color blindness, depth perception, or peripheral vision, though some states may screen for these separately. The vision screener is a straightforward test: you look into a machine or at a wall chart, the examiner points to letters or numbers, and you read them aloud.

How to prepare so you pass the vision test

If you wear glasses or contacts, wear them to your appointment. Do not assume you will pass without them. The DMV tests your corrected vision — the vision you actually have when you are wearing your correction. If you wear contacts, bring a backup pair or glasses in case a contact falls out during the test. If you wear bifocals or progressive lenses, let the examiner know, because they may need to position you differently at the vision screener.

If you have had an eye exam recently and your prescription has changed, consider getting new glasses or contacts before your appointment. An outdated prescription can cause you to fail a test you would otherwise pass. If you are unsure whether your current correction is up to date, visit an eye doctor before your DMV appointment.

On the day of the test, make sure you are well-rested and not squinting from fatigue or bright light. The examiner will give you time to read the letters, so there is no rush. If you cannot read a line clearly, say so — guessing will not help you.

What happens if you fail the vision test

If your vision does not meet your state's standard, the examiner will tell you that you have not passed and will not allow you to take the road test. You will not be charged again for the vision test itself, but you will need to reschedule your road test appointment for another day. The examiner will give you a form or a letter stating that you failed the vision screening.

Take that form to an eye doctor. The eye doctor will perform a full eye exam, check your prescription, and determine whether new glasses or contacts will bring your vision to the required standard. If your vision can be corrected to meet the state requirement, the eye doctor will provide a signed statement or form confirming this. Some states allow you to bring this form back to the DMV instead of retaking the vision test there.

If your vision cannot be corrected to meet the standard — for example, if you have a permanent eye condition — you may still be able to get a license with restrictions. Some states issue licenses that require you to wear corrective lenses while driving, or that limit you to daytime driving only. Ask the DMV what options are available in your state.

Vision testing at an eye doctor instead of the DMV

Some states allow you to have the vision test done at an eye doctor's office instead of at the DMV. This is useful if you want to update your prescription before your road test, or if you failed the DMV vision test and need to show proof of correction. Check your state's DMV website to see whether this option is available.

If your state allows it, call an eye doctor and ask whether they perform DMV vision tests. Not all eye doctors do. When you schedule the appointment, tell them you need the test for a driver license. The eye doctor will perform the test and give you a signed form or letter with the results. You then bring this form to your DMV appointment or to your rescheduled road test.

The advantage of this route is that you can get a fresh eye exam and new prescription at the same time, which may help you pass the DMV vision test on your first try. The disadvantage is that it costs money — eye exams are not free — whereas the DMV vision screening is included in your road test fee.

Vision requirements by state vary

The minimum vision standard, the type of vision screener used, and whether you can test at an eye doctor instead of the DMV all vary by state. Some states are stricter than others. For example, some states require 20/40 in each eye separately, while others require 20/40 in at least one eye. Some states test peripheral vision or require a visual field test for certain conditions.

Before your appointment, visit your state's DMV website and search for "vision requirements" or "eye test". You will find the specific standard your state uses, what documents you need to bring, and whether you can have the test done elsewhere. If you cannot find this information online, call your local DMV office and ask. Knowing the requirement ahead of time means you can prepare and avoid a failed test.

What to bring to your appointment

Bring your current glasses or contacts, even if you do not wear them all the time. Bring your state ID or passport to prove your identity. Bring any paperwork the DMV sent you about your appointment. If you have had an eye exam recently, you can bring the results, though the DMV will do its own vision test regardless.

If you have a medical condition that affects your vision — such as cataracts, macular degeneration, or diabetic retinopathy — bring documentation from your eye doctor. This does not excuse you from the vision test, but it helps the examiner understand your situation if you are close to passing or if you need to discuss restrictions on your license.

Frequently Asked Questions

Can I wear sunglasses during the vision test?

No. The examiner needs to see your eyes clearly and needs you to see the letters or numbers without any obstruction. Remove sunglasses and any tinted lenses before the test. If you are sensitive to bright light, tell the examiner — they may be able to dim the room or adjust the lighting on the vision screener.

What if I wear contacts and one falls out during the test?

Tell the examiner when ready. They will pause the test and give you time to replace the contact or switch to your glasses. Bring a backup pair of contacts or glasses to your appointment for exactly this reason. You can retake the vision portion of the test once your vision is corrected again.

Do I have to pass the vision test to get a learner's permit?

Yes. Most states require a vision test before issuing any type of driver license or learner's permit. The standard may be slightly different for a learner's permit than for a full license, so check your state's requirements. If you fail, you will need to correct your vision and return to test again.

How long does the vision test take?

Usually 2 to 5 minutes. It is one of the quickest parts of the licensing process. The examiner will position you at the vision screener, you will read the letters or numbers, and the test is done. If you wear bifocals or have other complications, it may take slightly longer.

Can I retake the vision test the same day if I fail?

Most states do not allow you to retake the vision test on the same day. You will need to return on another day after your vision has been corrected by an eye doctor. A few states may allow one retest, but this is uncommon. Check your state's policy when you schedule your appointment.