The eye exam is a quick vision screening, not a full eye doctor visit

When you go for your driver's license test, the examiner will check your vision before you take the written or road test. This is a basic screening that takes about two minutes. The examiner is looking for whether you can see well enough to drive safely — not diagnosing eye conditions or writing you a prescription.

Most states require you to read letters or numbers on a chart from a set distance, usually 20 feet away. If you wear glasses or contacts, you wear them during the test. If you don't normally wear them but might need them to pass, bring them anyway — the examiner will note on your license whether correction is required.

Key Takeaways

  • The vision screening takes about two minutes and happens before your written or road test.
  • You read letters or numbers from a chart at 20 feet; if you wear glasses or contacts, wear them during the test.
  • Most states require 20/40 vision or better in at least one eye, though this varies by state.
  • If you fail the vision screening, you can usually retake it the same day or come back another day with corrective lenses.
  • A failed vision screening does not mean you cannot get a license — it means you need to meet the vision standard with glasses or contacts.

What vision standard you need to meet

Most states require 20/40 vision or better in at least one eye to pass the screening. Some states are stricter and require 20/30 or 20/25. A few states have different standards for different license types — for example, a commercial driver's license might require better vision than a regular license.

The examiner will tell you whether you passed or failed when ready after the test. If you fail, ask what the next step is — some offices let you retake it the same day if you go home and get your glasses, and some require you to come back on another day.

What happens if you fail the vision screening

Failing the vision screening does not automatically disqualify you from getting a license. It means you need to correct your vision to meet the state standard. If you don't wear glasses or contacts and you fail, you have two options: get an eye exam from an optometrist or ophthalmologist and obtain corrective lenses, then retake the DMV vision test, or explore for a license with a restriction that requires you to wear correction while driving.

If you already wear glasses or contacts and fail the test while wearing them, the problem is more serious. You may need a stronger prescription, or there may be an eye health issue that needs attention from an eye doctor. In this case, the DMV will usually require you to bring a letter from an eye care professional stating that you meet the vision standard before they will issue your license.

Bringing your glasses or contacts to the test

If you wear glasses or contacts, bring them with you to your license test appointment. Wear them during the vision screening — the examiner will note on your license that correction is required. This means you are legally required to wear them whenever you drive.

If you wear bifocals or progressive lenses, let the examiner know. They may ask you to look through different parts of the lens to make sure you can see the chart clearly. If you wear contacts, make sure they are clean and in good condition before you go — a smudged or torn contact can affect your test result.

Preparing for the vision screening

There is no way to study for the vision screening — you either can see the letters or you cannot. However, you can take a few practical steps before your test. If you wear glasses, clean them the morning of your test. If you wear contacts, put in a fresh pair if possible. Get a good night's sleep the night before, since tired eyes can make it harder to read the chart clearly.

If you are not sure whether you can pass the vision screening, consider getting an eye exam from an optometrist or ophthalmologist before you go to the DMV. This costs money, but it tells you whether you need a new prescription before you show up for your license test. Some people find this saves time and frustration.

Vision screening requirements by state

Vision standards vary slightly from state to state. Most require 20/40 vision in at least one eye, but some require 20/30 or 20/25. A few states have a peripheral vision requirement as well — they want to know that you can see to the side, not just straight ahead. Some states also test color vision for certain license types.

You can find your state's specific vision standard on your state's DMV website. Search for "[your state] DMV vision requirements" or call your local DMV office and ask. Knowing the standard ahead of time helps you understand whether you are likely to pass or whether you should get your eyes checked first.

What to do if you wear corrective lenses but forget them

If you wear glasses or contacts and show up for your test without them, tell the examiner when ready. Do not try to take the vision screening without correction if you normally wear it — you will almost certainly fail, and you will have wasted a trip. Most DMV offices will let you reschedule for another day so you can come back with your glasses or contacts.

Some offices have a policy that allows you to leave, get your glasses, and come back the same day to retake the vision screening. Call ahead to ask whether your local DMV allows this, or ask the examiner when you arrive. Having this information before your appointment saves time.

Frequently Asked Questions

Can I take the vision screening without my glasses if I normally wear them?

You can, but you will almost certainly fail. The examiner will note that you failed without correction. If you want to pass, you need to wear your glasses or contacts during the test. If you forget them, ask whether you can reschedule for the same day or come back another time.

What if I have one eye that is much worse than the other?

The examiner tests each eye separately. Most states only require one eye to meet the vision standard, so if your better eye passes, you pass the screening. The examiner will note which eye meets the standard on your record.

Do I need a full eye exam from a doctor before my DMV test?

No, not unless you fail the DMV vision screening or you are not sure whether you can pass. If you pass the DMV screening, you do not need a doctor's letter. If you fail and need to retake it, some states require a letter from an eye care professional confirming that you now meet the vision standard.

Can I wear sunglasses during the vision screening?

No. The examiner needs to see your eyes clearly and you need to see the chart clearly. Remove sunglasses before the test. If you are sensitive to bright light, mention this to the examiner — they may be able to adjust the lighting or the chart position.

What if I fail the vision screening twice?

After two failures, most states require you to bring a letter from an eye care professional stating that you meet the vision standard before you can retake the DMV test. This protects both you and other drivers by ensuring that vision problems are addressed by someone may have access to to diagnose them.