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    Question

    Should I take my driving vision test with scleral lenses in?

    If your scleral lenses are what let you see well enough to drive, the vision test should reflect that. Here's how to prepare, what to ask your licensing office, and what to do if the test doesn't go well.

    By the Scleral Lens Team · Last reviewed October 2, 2026 · 3 published sources cited

    The short answer

    Yes, if you need them to see well enough to drive, take the test wearing them, because that's how you'll be driving. Rules differ from state to state and country to country, so ask your licensing office what the test involves, whether your own eye doctor can complete a vision report instead, and whether passing with lenses adds a condition to your license. Put fresh saline in the lenses before the test so fogging or film doesn't drag your result down, and bring your backup glasses.

    Key points

    • Take the test the way you drive: with your lenses in, if you need them.
    • Rules vary by state and country. Ask your licensing office, not the internet.
    • A fresh clean and fill before the test helps avoid fog and film.
    • If you don't pass, ask your eye doctor why before you retest.
    • Keep backup glasses in the car, and don't drive if your vision isn't right.

    Take the test the way you drive

    A driving vision test checks whether you can see well enough to drive safely. If you need scleral lenses to reach that level, the test should be done with them in, the same as it would be with glasses. Wearers who’ve done this say it’s usually straightforward, and some say they read lines they could never have read in glasses.

    What happens next depends on where you live. Driver licensing rules in the US are set by each state, and other countries have their own. We don’t list state-by-state rules here because they differ and they change. Ask your licensing office:

    • What does the vision test involve, and what does it measure?
    • Will passing with lenses add a corrective-lens condition to my license?
    • Does that condition cover contact lenses, glasses, or either?
    • Can my own eye doctor complete a vision report instead of, or as well as, your test?

    Preparing for test day

    Scleral lens vision can vary through the day, so a little planning helps:

    • Clean the lenses and refill with fresh saline before you go, so fog or film doesn’t blur the chart. See midday fogging.
    • Book a time that suits your eyes. If your vision is sharpest earlier in your wearing day, aim for that.
    • Bring what you’d need for a quick reset: your case, saline, plunger and a mirror, plus any drops your fitter has approved.
    • Bring your backup glasses. The FDA advises every contact lens wearer to keep a backup pair with a current prescription.[2]
    • Blink normally. Wearers with dry eye say the front of the lens can blur if they stare at a chart without blinking. See blur when you blink.

    If you don’t pass

    A failed vision test with lenses in is stressful, but it isn’t always about your eyes. Wearers who’ve been through it name several possible reasons: film or fog on the lens, a dry front surface, a lens that hadn’t settled, or difficulty with the testing machine itself.

    • See your eye doctor or fitter before you retest. Ask them to check your vision with the lenses in, and whether the power or fit needs adjusting. See my new scleral lenses are blurry.
    • Ask whether your own eye doctor can provide a report of your vision with lenses, if your licensing office accepts one. Complex eyes are sometimes easier to measure in a specialty office.
    • Field tests are different. Some licensing tests check side vision as well as sharpness. If you pass the eye chart but not a field test, ask your eye doctor to explain the result and whether a repeat test is reasonable. Don’t assume the lens is the cause, and don’t assume it isn’t.

    Commercial drivers

    Commercial drivers in the US are covered by federal medical standards. Among other things, the rule requires distant visual acuity of at least 20/40 in each eye, with or without corrective lenses, a field of vision of at least 70 degrees in the horizontal meridian in each eye, and the ability to recognize the colors of traffic signals. A separate alternative standard applies to drivers who can’t meet the acuity or field requirement in their worse eye.[1] If you drive commercially, ask your medical examiner how they’ll test you with scleral lenses, and bring your eye doctor’s records.

    Plan for days without lenses

    If you only meet the driving standard with your lenses, a day you can’t wear them may be a day you can’t drive. That matters if a lens breaks, your eye is irritated, or your doctor asks you to rest your eyes. Many wearers say their glasses aren’t good enough to drive in. Ask your eye doctor whether your backup glasses meet the standard where you live, and plan transport for days you can’t wear lenses. See do scleral lenses make your vision worse without them?

    Driving safely day to day

    • Don’t drive with vision you aren’t comfortable with. If your lenses fog or your eye becomes uncomfortable on the road, pull over somewhere safe and switch to glasses, or stop driving.
    • Night driving has its own challenges. See do scleral lenses help with night driving?
    • Keep a small kit in the car, including your glasses.

    What to ask your eye doctor or fitter

    • Is my vision with lenses good enough to drive, by day and at night?
    • Are my backup glasses good enough to drive in?
    • Can you complete a vision report for my licensing office?
    • What should I do if my vision fogs while I’m driving?

    Common questions

    Do I have to tell the licensing office I wear scleral lenses?

    Answer the licensing office's questions honestly, including whether you need correction to see well enough to drive. Ask whether a corrective-lens condition on your license covers glasses, contact lenses, or both.

    Can my eye doctor do the vision test instead?

    In some places, yes. Wearers report that their licensing office accepted a vision form completed by their own eye doctor. Ask your licensing office whether that's an option and which form they need, then take it to your fitter or eye doctor.

    Should I drive home after picking up new lenses or after a dilated eye exam?

    Plan not to. New lenses can take time to get used to, and dilation blurs vision for a while. Wearers often bring a driver or arrange a ride on those days.

    My vision is fine in the morning but fogs by evening. Can I still drive at night?

    Only if your vision is good enough at that moment. Fogging later in the day is common and can often be improved. See our page on scleral lenses for night driving, and ask your fitter about a plan, such as a clean and refill before you set off.

    Keep reading

    Do scleral lenses help with night driving?

    Often, yes. By smoothing out an irregular cornea, scleral lenses can sharply reduce the ghosting and blur that make night driving hard, and a small study found driving-related quality of life improved after three months of wear. Some wearers still see halos or glare from leftover distortions, a lens that sits off-center, or fogging late in the day. Tell your fitter exactly what you see at night: these problems can often be improved.

    Do scleral lenses make your vision worse without them?

    Blur for a while after you take scleral lenses out is a common experience, and for most wearers it clears on its own. Scleral lenses aren't designed to reshape the cornea, and the changes studies find are small and mostly temporary. What often feels like 'worse vision' is the contrast with how sharp the lenses are, glasses that were never able to correct an irregular cornea well, or a condition that has changed over time. Blur that doesn't clear, or that comes with pain or redness, needs your eye doctor.

    My new scleral lenses are blurry. Will I adapt, or is the prescription wrong?

    Your brain can adapt to some things, like a different sense of size or depth, and comfort often improves over the first days. It can't adapt away a wrong power, leftover astigmatism, or a lens that sits off-center or fogs. First rule out the quick causes: a bubble, the lenses in the wrong eyes, or film on the lens. If the blur is still there after that, call your fitter rather than waiting it out: remakes and power changes are a normal part of fitting, and reporting early gives you the most time to get it right.

    Can you wear glasses over scleral lenses?

    Yes. Glasses sit in front of your eyes and don't touch the lens, so you can wear them over scleral lenses. The most common reason is reading glasses: from the early to mid-40s, most people gradually lose the ability to focus up close, and a standard scleral lens corrects distance vision only. Glasses can also add a small correction your lens doesn't cover, and safety glasses or sunglasses work over them too.

    Sources

    1. Code of Federal Regulations. 49 CFR 391.41, Physical qualifications for drivers (commercial motor vehicles). Legal Information Institute, Cornell Law School. law.cornell.edu
    2. U.S. Food and Drug Administration. Everyday Eye Care (contact lenses). Content current as of December 4, 2023. fda.gov
    3. U.S. Food and Drug Administration. Contact Lens Risks. Content current as of September 4, 2018. fda.gov

    Last updated October 2, 2026. Found an error or a newer study? Let us know and we'll correct the page.