What Vision You Need to Pass the Eye Test

Most states require you to have vision of at least 20/40 in each eye, with or without glasses or contacts. That means you can read letters on a standard eye chart from 20 feet away that a person with perfect vision (20/20) could read from 40 feet away. If you wear corrective lenses, you take the vision test wearing them — and your license will be restricted to "corrective lenses required" if that's the only way you meet the standard.

Some states allow you to pass with vision as low as 20/60 or 20/70 in one eye if your other eye is stronger, but the rules vary. A few states have different thresholds for different license types. The eye test itself takes just a few minutes at the DMV and is usually the first thing that happens during your written or road test appointment.

If you fail the vision test, you cannot take the road test that day. You'll need to see an eye doctor, get new glasses or contacts if needed, and come back to the DMV to retest your vision before you can move forward.

Key Takeaways

  • You must have vision of at least 20/40 in each eye, measured with any corrective lenses you normally wear.
  • If you pass the vision test only while wearing glasses or contacts, your license will require you to wear them every time you drive.
  • The DMV tests your vision at the start of your appointment using a standard eye chart or digital vision machine.
  • Failing the vision test means you cannot take your road test that day and must return after seeing an eye doctor.
  • Vision requirements vary slightly by state, so check your state DMV website for the exact standard in your area.

How the Vision Test Works at the DMV

When you arrive for your appointment, a DMV staff member will ask you to read letters or numbers on a chart from a set distance, usually about 14 to 20 feet away. You'll cover one eye at a time so they can test each eye separately. Some DMVs use an older wall-mounted chart; others use a digital machine where you look through a viewer and read what appears on a screen.

The test takes less than five minutes. You don't need to study for it or prepare in any special way — it's straightforward measuring what you can see right now. If you wear glasses or contacts, wear them to your appointment. If you have a new prescription you haven't picked up yet, pick up your glasses or contacts before you go to the DMV.

What Happens If You Wear Glasses or Contacts

If you can only meet the vision standard while wearing corrective lenses, your license will have a restriction code printed on it. This restriction means you are legally required to wear your glasses or contacts every single time you drive. Driving without them when your license says you must wear them is a violation and can result in a ticket.

Make sure your glasses or contacts prescription is current before you test. If your vision has changed since your last eye exam, you may fail the test even if you're wearing lenses. An eye doctor can update your prescription, and many optometrists and ophthalmologists can see you quickly if you explain you need it for a license test.

What Happens If You Fail the Vision Test

If you cannot read the required line on the eye chart, even with glasses or contacts, you will not be allowed to take your road test that day. The DMV will tell you that you need to see an eye doctor and return with proof that your vision meets the standard.

Some states require you to bring a form signed by an eye doctor confirming your vision meets the requirement. Other states will retest your vision at your next appointment without requiring a doctor's note. Check your state DMV website or call ahead to find out what your state requires before you schedule a follow-up visit.

If you have a medical condition affecting your vision, or if you're unsure whether your vision will pass, schedule an eye exam before your DMV appointment. This saves you a trip and gives you time to get new glasses or contacts if you need them.

Vision Problems That May Need Special Attention

Certain vision conditions can affect your ability to drive safely, and some states have additional rules about them. Color blindness, for example, does not usually prevent you from getting a license in most states, but some states may restrict your driving or require you to take an extra test. Night blindness or severe astigmatism may also trigger additional testing or restrictions.

If you have a known vision condition — such as macular degeneration, cataracts, or significant astigmatism — talk to your eye doctor before you go to the DMV. They can tell you whether your condition will affect the test and what options you have. In some cases, you may need a medical evaluation form from your doctor in addition to the standard vision test.

Updating Your Vision Prescription Before Testing

If your glasses or contacts prescription is more than a year old, consider getting an eye exam before your DMV appointment. Vision can change, and an outdated prescription might not be strong enough to help you pass the test. An eye exam usually takes 30 minutes to an hour, and many optometrists can fit you in within a few days.

If cost is a concern, many communities have low-cost or sliding-scale eye clinics. You can search for "low-cost eye exam near me" or contact your local health department for referrals. Getting your prescription updated now is much faster than failing the test, going to the eye doctor, and returning to the DMV.

State Variations in Vision Standards

While 20/40 is the most common standard, some states set different thresholds. A few states allow 20/60 vision in one eye if the other eye is 20/40 or better. Some states have separate vision standards for commercial driver's licenses (CDLs), which are often stricter than standards for regular licenses.

Your state DMV website will list the exact vision standard for your license type. If you're unsure whether you'll pass, call your local DMV office and ask. They can tell you the standard and sometimes can tell you whether your current vision is likely to meet it based on a quick phone conversation.

Frequently Asked Questions

Can I take the vision test without glasses or contacts if I normally wear them?

You can, but you shouldn't. If you fail the vision test without them and then pass with them, your license will require corrective lenses. It's better to wear them from the start so your test results match how you actually drive.

What if I just got new glasses and I'm not sure they're the right prescription?

Wear them to your DMV appointment. If they're not strong enough and you fail, you can go back to your eye doctor and get them adjusted. If they're too strong, you'll likely still pass the test. Either way, you'll know before you take your road test.

Do I need to bring anything to prove my vision is corrected?

No, not for the initial test. Just wear your glasses or contacts to your appointment. If you fail and your state requires a doctor's note to retest, the DMV will tell you what form to bring back.

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

Most DMVs do not allow same-day retesting. You'll need to see an eye doctor, get new lenses if needed, and schedule a new appointment. Some states may allow a retest after a waiting period of a few days or weeks, so check your state's rules.

What if I have one eye that's much weaker than the other?

As long as each eye meets the minimum standard (usually 20/40), you can pass. If one eye is weaker but still meets the requirement, you're fine. If one eye is below the standard, some states allow you to pass if your other eye is strong enough, but the rules vary by state.