The Vision Test Is Separate From the Written Test and Happens First

The vision test is not part of the written knowledge exam — it is a separate screening that happens before you take any written or driving test at the Texas Department of Public Safety (DPS) office. You will read letters and numbers on a chart from a specific distance, usually 20 feet away. The examiner is checking whether you can see well enough to drive safely on Texas roads.

You must pass the vision test to move forward with your license exam. If you fail, you cannot take the written test that day. The DPS will tell you what your vision score was and whether you need to see an eye doctor before you can return.

Key Takeaways

  • The vision test happens at the DPS office before your written test and uses a standard eye chart read from 20 feet away.
  • You must achieve at least 20/40 vision in each eye, or 20/30 if you are correcting with glasses or contacts.
  • Bring your glasses or contacts if you normally wear them — the test measures your vision with correction if you use it.
  • If you fail the vision test, you cannot take the written test that day and must return after seeing an eye care professional.
  • The vision test is the same whether you are renewing, getting your first license, or upgrading your license class.

Vision Standards Texas DPS Uses

Texas requires you to have at least 20/40 vision in each eye without correction, or 20/30 in each eye if you are wearing glasses or contact lenses. The 20/40 standard means you can see at 20 feet what a person with typical vision can see at 40 feet. If one eye is weaker than the other, both eyes are tested separately.

If you wear glasses or contacts, bring them with you. The DPS will test your vision with your correction in place. If you normally wear them while driving, you must wear them during the test — your license will carry a restriction code requiring you to wear corrective lenses whenever you drive.

Some people have vision that falls between 20/40 and 20/70. In Texas, you may still be issued a license with a restriction that limits where or when you can drive — for example, daylight driving only or no highway driving. The examiner will explain any restrictions before you leave the office.

What Happens During the Vision Test

You will stand or sit about 20 feet from an eye chart (usually a Snellen chart with rows of letters that get smaller toward the bottom). The examiner will ask you to read the smallest line you can see clearly. You read one eye at a time, starting with your right eye, then your left eye. The process takes about two to three minutes.

If you wear glasses or contacts, you will wear them during the test. If you have bifocals or progressive lenses, let the examiner know — they may ask you to look through different parts of the lens to make sure your vision is adequate in all areas you need for driving.

The examiner is not testing your ability to read fine print or see color — only your distance vision, which is what matters most for spotting hazards on the road. If you have questions about what you are seeing, tell the examiner. They are trained to help you position yourself correctly and to repeat lines if you are unsure.

If You Fail the Vision Test

If your vision does not meet the 20/40 standard (or 20/30 with correction), the DPS will not let you take the written test that day. You will receive a notice explaining that you did not pass the vision screening and what your measured vision was in each eye.

You must then see an eye care professional — an optometrist or ophthalmologist — before you can return to the DPS office. The eye doctor will perform a full eye exam and can provide a corrective prescription if needed. You do not need a special form from the DPS; a standard eye exam report is enough.

Once you have been treated or fitted with corrective lenses, return to the DPS office with your new glasses or contacts and take the vision test again. There is no additional fee for the retest. You can schedule a new appointment online through the Texas DPS website or call your local DPS office.

Bringing Glasses or Contacts to the DPS Office

If you wear glasses or contacts, bring them with you on the day of your test. Do not assume you will pass without them if you normally wear them while driving — the test is designed to measure your actual driving vision, which includes any correction you use.

If you wear bifocals or progressive lenses, make sure they are clean and in good condition. If you wear contact lenses, bring a backup pair or your glasses in case you have trouble with your contacts on the day of the test. The DPS office cannot provide contacts or glasses if yours fail during the exam.

If you have recently changed your prescription, bring your new glasses or contacts. An old prescription may not be strong enough to meet the 20/30 standard, and you could fail the test unnecessarily.

Vision Test Requirements for Different License Types

The vision standard is the same whether you are getting a Class C (regular car) license, a Class B (truck or bus) license, or a Class A (motorcycle) license. All drivers in Texas must meet the 20/40 or 20/30 standard.

However, if you are renewing a license and your vision has not changed, the DPS may not require you to take the vision test again — they will use your previous test result on file. If you are upgrading from one class to another or if your license has been expired for more than two years, you will need to take the vision test again.

Commercial driver's license (CDL) holders have stricter vision requirements: 20/40 in each eye with or without correction, and a wider field of vision. If you are upgrading to a CDL, the vision test will be more thorough.

Common Mistakes That Lead to Vision Test Failures

The most common mistake is not wearing your glasses or contacts when you should. If you normally wear them while driving, wear them to the DPS office. Some people think they can pass without correction and then fail, wasting time and requiring a return trip.

Another mistake is not cleaning your glasses before the test. Smudges and dirt can make letters harder to read and may cause you to fail when you would have passed with clean lenses. Wipe your glasses with a clean cloth before you enter the DPS office.

A third mistake is guessing at letters you cannot read clearly. The examiner is testing your actual vision, not your ability to guess. If you cannot read a line clearly, say so. Guessing incorrectly will lower your score and may result in a failure.

Frequently Asked Questions

Can I take the vision test online or at home?

No. The vision test must be done in person at a Texas DPS office using their equipment and under the supervision of a DPS examiner. You cannot take it remotely or at an eye doctor's office.

What if I have had eye surgery or a recent change in my vision?

Tell the DPS examiner about any recent eye surgery or vision changes before the test begins. If you have had LASIK or cataract surgery, your vision may have improved, and you may pass the test more easily. If your vision has gotten worse, see an eye doctor first and get a new prescription before returning to the DPS.

Do I have to pay extra for the vision test?

No. The vision test is included in your license exam fee. There is no separate charge. If you fail and need to retest, there is also no additional fee for the vision retest — you only pay if you take the written test again.

What if I fail the vision test but pass the written test on a later visit?

You cannot take the written test on the same day you fail the vision test. You must return on a different day after you have seen an eye care professional. When you return and pass the vision test, you will then take the written test.

Can I use my eye doctor's vision test results instead of the DPS test?

No. The DPS must conduct its own vision test using its own equipment and standards. Your eye doctor's results are useful for getting a prescription or corrective lenses, but they do not replace the DPS vision screening.