The Texas Eye Test: What It Measures and When You Take It

Texas requires an eye test as part of the driver's license exam. The test happens at the DMV during your appointment and takes about two minutes. It measures your visual acuity — how clearly you can see — and your ability to distinguish colors and see your peripheral vision (the edges of your sight).

You will take the eye test every time you renew your license, not just when you first get one. The test is the same whether you are renewing in person or explore for your first license. If you fail the test, you cannot move forward with your license process or renewal until you pass it or obtain a corrective lens restriction on your license.

Key Takeaways

  • The eye test at the Texas DMV checks visual acuity, color vision, and peripheral vision using a machine called a vision screener.
  • You must pass the test to receive an unrestricted license; if you fail, you can retest when ready or explore for a license with a corrective lens restriction.
  • Bringing your current glasses or contacts to your DMV appointment is essential, and you should wear them during the test if you normally wear them while driving.
  • The passing standard for visual acuity in Texas is 20/40 vision in at least one eye, or 20/70 in each eye with both eyes open.
  • If you fail the eye test, you can retake it the same day at most DMV offices, though some locations may require you to schedule a new appointment.

Visual Acuity Standards in Texas

Texas law sets a minimum vision standard: you must have at least 20/40 vision in one eye, or 20/70 vision in each eye when both are tested together. The numbers mean that what an average person can see clearly at 40 feet away, you can see at 20 feet away (or 70 feet in the both-eyes scenario). If your vision is worse than this, you cannot receive an unrestricted license.

The vision screener at the DMV displays letters or symbols that get progressively smaller. You read them aloud, and the machine records how far down the chart you can go. This is not a judgment call — the machine measures your performance against the state standard automatically. If you fall short, the screener will show a fail result.

What Happens If You Wear Glasses or Contacts

If you wear corrective lenses while driving, you must wear them during the eye test. Bring your current glasses or contacts to your DMV appointment. The test measures your vision with correction in place, not your uncorrected vision. If you pass the test while wearing your glasses or contacts, your license will carry a restriction code that says you must wear corrective lenses whenever you drive.

If you wear bifocals or progressive lenses, tell the DMV staff before the test begins. They may ask you to position your head differently so the screener can measure your vision through the correct part of the lens. If you wear contacts and one falls out during your appointment, ask the staff if you can step out to fix it before retesting.

Color Vision and Peripheral Vision Screening

After the acuity test, the vision screener checks your ability to see colors and your peripheral vision. The color test typically uses a plate with colored dots or a similar method to confirm you can distinguish red, green, and yellow — the colors of traffic lights. This is a pass-or-fail component, though most people pass without difficulty.

Peripheral vision screening checks whether you can see objects to the side without moving your eyes. This matters for safe driving because you need to notice vehicles and pedestrians approaching from the sides. The screener will show lights or objects at the edges of your visual field, and you signal when you see them. Like the color test, this is straightforward for most drivers.

What to Do If You Fail the Eye Test

If you fail the eye test, you have two options. First, you can retake the test when ready at most Texas DMV locations. Many offices allow you to step out, collect yourself, and retake it the same day at no extra charge. If you wear glasses or contacts and failed, double-check that they are clean and positioned correctly before the retest.

Second, if you fail again or do not want to retake it that day, you can explore for a license with a corrective lens restriction. This means your license will be valid, but it will carry a code requiring you to wear glasses or contacts while driving. You can also obtain a letter from an eye doctor stating that you meet the vision standard with correction, and bring that letter to the DMV to override the fail result — though this requires scheduling a new appointment.

Preparing for Your Eye Test Appointment

Arrive at your DMV appointment with your current glasses or contacts if you wear them. Clean your glasses before you go; smudges or scratches can affect the test result. If you wear contacts, make sure they are fresh and properly inserted. Bring your appointment confirmation, proof of identity, and any other documents the DMV requested when you scheduled.

If you have had recent eye surgery, cataract removal, or a significant change in your vision, mention this to the DMV staff before the test. They may ask follow-up questions or note it in your file. If you are nervous about the test, remember that it is automated and objective — the machine measures what you can see, and there is no judgment involved.

Eye Test Restrictions and Special Circumstances

Some drivers receive restrictions beyond corrective lenses. If you have limited peripheral vision, you may be required to have outside mirrors or restricted to daytime driving only. If you have a condition like cataracts or macular degeneration that affects your vision, the DMV may require you to have a medical evaluation from an eye doctor before issuing your license.

If you are renewing your license and your vision has changed significantly since your last renewal, the DMV may require a new eye exam from an optometrist or ophthalmologist. This is rare but can happen if your previous test was borderline or if staff notice a dramatic change. You will be notified if this is required before your appointment.

Frequently Asked Questions

Can I take the eye test without my glasses if I usually drive with them?

No. You must wear your glasses or contacts during the test if you wear them while driving. The test measures your corrected vision, and your license will reflect that you must wear correction. Testing without them would give a false result and could lead to an unsafe license.

What is the difference between 20/40 and 20/70 vision?

20/40 means you can see at 20 feet what an average person sees at 40 feet. 20/70 means you can see at 20 feet what an average person sees at 70 feet. Texas allows 20/40 in one eye or 20/70 in both eyes combined. Better vision (lower second number) is safer, but Texas sets the minimum at these levels.

If I fail the eye test, can I still get a license?

Yes. You can retake the test when ready, or you can explore for a license with a corrective lens restriction if you failed because you were not wearing glasses or contacts. You can also bring a letter from an eye doctor confirming you meet the standard with correction and request a new test appointment.

How often do I have to retake the eye test?

You take the eye test every time you renew your driver's license. In Texas, licenses are valid for five or six years depending on your age, so you will retake the test at each renewal. If you pass once, you do not need to retake it before your renewal date unless the DMV requests it.

What if I have one eye and cannot meet the vision standard?

Texas measures vision in at least one eye. If you have one eye and it does not meet 20/40, you may still be able to obtain a license if you can demonstrate safe driving ability through a medical evaluation or practical driving test. Contact your local DMV office to discuss your specific situation.