The eye test is a quick vision screening, not a full eye exam
The eye test at your driver license appointment checks whether you can see well enough to drive safely. It is not the same as a visit to an optometrist or ophthalmologist — the examiner is not diagnosing eye disease or writing a prescription. The test takes about five minutes and happens before or after your written test, depending on your state's order.
What the examiner checks is your visual acuity (how clearly you see at a distance) and sometimes your peripheral vision (what you can see to the sides without moving your eyes). Most states require you to see at least 20/40 vision in each eye, though some require 20/30. If you wear glasses or contacts, you wear them during the test — the examiner is checking your vision with your normal correction, not without it.
You do not need to study for this test the way you study for the written exam. But you do need to know what to bring and what happens if you do not pass on your first try.
Key Takeaways
- The eye test measures how clearly you see at a distance and checks your side vision; you wear your glasses or contacts if you normally do.
- Most states require 20/40 vision or better, but the exact standard varies by state and sometimes by license type.
- If you do not pass, you can usually retake it the same day or at your next appointment, and some states let you bring a recent eye doctor's report instead.
- Bring your glasses or contacts even if you do not think you need them for the test — the examiner will tell you if they are required.
- If you have had recent eye surgery or a new prescription, tell the examiner before the test starts.
How the vision screening actually works
The examiner will seat you in front of a machine called a vision screener or visual acuity tester. You look into the eyepieces and focus on letters or symbols on a chart inside. The examiner will ask you to read the smallest line you can see clearly. This is how they measure your acuity — if you can read the line marked 20/40, your vision is 20/40.
The examiner may also check your peripheral vision by asking you to look straight ahead while they move an object or light into your side vision, and you signal when you see it. This test takes only a few seconds per side. Some states skip this step entirely, while others include it as part of the standard screening.
If you wear glasses or contacts, wear them to your appointment. If you have bifocals or progressive lenses, let the examiner know — they may ask you to look through a specific part of the lens. If you have had cataract surgery, LASIK, or any other eye procedure in the past few months, mention it before the test; some states allow a grace period or require a letter from your eye doctor.
What happens if you do not pass the eye test
If your vision does not meet your state's standard, you will not automatically fail your entire license test. Instead, you will be given a chance to retake the vision screening. Many states let you retake it the same day, right then. A few require you to come back at another appointment.
If you fail a second time, some states will issue you a restricted license that limits when or where you can drive — for example, daylight driving only, or no highway driving. Other states will deny your license until you bring proof from an eye doctor that your vision meets the standard with correction.
If you know your vision is poor, you have options before you go to your appointment. You can visit an optometrist or ophthalmologist and get a current eye exam and prescription. If your vision does not meet the standard even with correction, bring that eye doctor's report to your license appointment — some states will accept it as documentation and may issue a restricted license or waiver. Call your state's Department of Motor Vehicles ahead of time to ask what they accept.
Vision standards vary by state and license type
Most states require 20/40 vision in each eye, but some require 20/30 or 20/35. A few states have different standards for different license types — for example, a standard passenger license might require 20/40, but a commercial driver license might require 20/30. Your state's DMV website will list the exact standard for your license type.
Some states also set a minimum field of vision — usually at least 140 degrees horizontally. If you have had eye surgery, a stroke, or an eye condition that affects your peripheral vision, ask your eye doctor whether you meet this standard before you go to your appointment.
A few states allow you to bring a letter from your eye doctor instead of taking the vision test at the DMV. This is most common if you have a medical condition or have had recent surgery. Contact your state DMV to ask whether this option is available to you.
Preparing for the eye test on appointment day
Bring your glasses or contacts, even if you think you see well without them. The examiner will ask whether you normally wear correction, and if you do, you must wear it during the test. If you wear contacts and they are uncomfortable or you have not worn them in a while, consider wearing your glasses instead — you want to be as comfortable as possible during the screening.
If you wear bifocals or progressive lenses, arrive a few minutes early so you can get used to looking through them. The examiner will position you at the vision screener, and you may need to tilt your head slightly to look through the right part of the lens.
If you have had any eye procedure — cataract surgery, LASIK, corneal transplant, or retinal surgery — in the past few months, bring documentation from your eye doctor. Some states have a waiting period before you can take the vision test after surgery, and some will waive the test if you bring a letter from your doctor saying your vision is safe for driving.
What to do if you wear contacts and have a problem during the test
If your contact lens falls out or becomes uncomfortable during the vision test, tell the examiner when ready. They can pause the test, give you time to fix the problem, and then restart. You are not penalized for this — it is a normal part of the process.
If you wear contacts and you know they sometimes bother you, consider wearing your glasses to your appointment instead. The examiner does not care which form of correction you use, as long as you can see clearly. If you do not have glasses and your contacts are unreliable, visit an eye doctor before your appointment to get a current prescription and either new contacts or a pair of glasses.
Frequently Asked Questions
Can I wear sunglasses during the eye test?
No. You must remove sunglasses and any tinted eyewear before the test. If you have light-sensitive eyes or a medical condition that requires tinted lenses, bring a letter from your eye doctor explaining this, and ask the examiner whether you can wear them during the vision screening.
What if I have one eye that is much worse than the other?
The examiner tests each eye separately. As long as each eye meets your state's minimum vision standard — usually 20/40 — you will pass. If one eye does not meet the standard but the other does, you may be issued a restricted license that requires you to wear correction at all times while driving.
Do I need a recent eye exam before I go to the DMV?
No, unless your vision is poor or you have failed the test before. If you think you might not pass, visiting an eye doctor first gives you time to get new glasses or contacts and bring documentation to your appointment. If you fail at the DMV, you will likely need an eye doctor's letter anyway.
What if I am colorblind — will that affect my license?
Colorblindness is not tested at the DMV vision screening and does not prevent you from getting a driver license. The vision test checks how clearly you see and your peripheral vision, not color vision. You can drive safely with colorblindness because traffic lights are positioned (red on top, green on bottom) as well as colored.
Can I retake the eye test if I was nervous the first time?
If you fail the vision test, you can retake it the same day in most states. If you pass but feel you did not do your best, you cannot retake it — the result stands. If you are very anxious about the test, practice deep breathing before you go in, and let the examiner know you are nervous; they can go slowly and make sure you are comfortable.