The Useful Field of View Test: A Vision-and-Attention Check That Predicts Driving Safety
The Useful Field of View Test at a Glance
The Useful Field of View test (often shortened to UFOV) is a short computer task that measures how fast you can notice and place what you see, not how sharp your eyesight is. The UFOV assessment is a short 5 to 10 minute computer-administered test that measures your useful field of view in terms of visual processing speed1. You sit at a screen, watch shapes flash, and answer where they appeared. There are no eye drops and nothing touches your eye.
Driving asks you to watch the road ahead while catching a cyclist at the edge of your view, all in a fraction of a second. Performance on the Useful Field of View test is well established as a predictor of unsafe driving in older adults2. A lower score is a signal worth acting on, not a verdict on you as a person, and there are concrete steps that can help, which this page walks through.
Below you will find what the test measures, how to get ready, what the visit feels like, and how to read your result without reading too much into it. You will also find who gives the test and when a change in your vision deserves a same-day call.
What the Useful Field of View Test Actually Measures
Your 'useful field of view' is the area you can take in with a single glance, without turning your head or eyes. It depends on how quickly your brain processes what your eyes deliver, so a person with a perfect eye-chart score can still have a narrowed useful field of view. This is different from peripheral vision. Peripheral vision, or side vision, is what you can see outside the center of your gaze, above, below, and to each side3.
The test builds up in difficulty. First it times plain processing speed: how briefly a single shape can flash and still be identified. Then it adds a second target at the edge to test divided attention, and finally it surrounds the targets with clutter to test selective attention. In the test, you attend to two targets at once, a car shape shown in the center and a second car shape that can appear in one of eight outer positions2.
The eye check at a licensing office mostly measures how small a letter you can read. The Useful Field of View test measures something the letter chart misses: how fast and how widely your attention works under pressure. Studies show the Useful Field of View test is a better predictor of crash risk than the tests typically used at motor-vehicle offices1. That does not make it a licensing test; it is a clinical screen that helps you and your clinician plan.
How to Prepare for a Useful Field of View Test
Wear the glasses or contacts you normally drive in, since the test is meant to reflect your everyday vision. It helps to bring a short note of recent eye problems or diagnoses. The American Optometric Association recommends annual eye examinations for everyone over age 60, because sight can change a lot in a year4, so a recent exam makes your test result easier to interpret.
This test does not involve dilating drops, bright lights, or anything that blurs your vision afterward, so you can drive yourself home and return to your day right away. Being rested helps, because the task depends on attention. If you are very tired or unwell, it is reasonable to ask to reschedule.
Ask who will give the test, how long it will take, and what will happen with the result. Ask whether the visit also includes a full eye health check or a driving evaluation, since the Useful Field of View test on its own looks at attention rather than eye disease. Knowing this in advance keeps your expectations matched to what the visit can answer.
What Happens During the Test
You sit a set distance from a computer screen in a quiet, evenly lit room. A staff member explains the task and lets you try a few practice rounds so the timing does not surprise you. You respond by touching the screen, clicking, or telling the examiner what you saw, depending on the setup.
Shapes flash for shorter and shorter times as you go, and the test finds the briefest flash you can still handle. It is normal to miss some; the test is measuring your threshold, not scoring you pass or fail on each trial. Because it adjusts to you, two people rarely see exactly the same sequence.
The core test usually runs about 5 to 15 minutes. It may be given in an eye clinic, a vision therapy or rehabilitation office, or as part of a driving evaluation. Occupational therapists who specialize in driving rehabilitation can provide comprehensive testing of motor function related to driving ability5, and the Useful Field of View test is often one piece of that larger assessment.
Making Sense of Your Results
Results are usually given as how much your useful field of view is reduced, grouped into low, moderate, or high risk categories. A larger reduction means your attention narrows more when the road gets busy, which is the pattern linked to crashes. A result in a higher-risk band is a prompt for a closer look and a plan, not a reason to stop driving on the spot.
The test cannot diagnose an eye disease, name why your attention narrowed, or predict whether you personally will have a crash. It measures one ability at one moment, and results can shift with sleep, medication, mood, or practice. Treat it as one useful reading among several, alongside a full eye exam and, when needed, an on-road evaluation.
A clear result gives you something to act on: an eye exam to rule out treatable conditions, a conversation about the roads and times you drive, and sometimes a formal driving assessment. Many people use a moderate score as motivation to change habits early, while they still have plenty of good driving years ahead.
Risks, Limits, and the Longer View
The test itself carries no physical risk. It does not touch your eyes, use drops, or expose you to anything harmful, so the only cost is a few minutes and mild concentration. Some people feel anxious about the result; naming that worry up front, and remembering the score guides a plan rather than a punishment, tends to ease it.
Often, yes. A type of computer practice called speed-of-processing training targets the same skills the test measures. In one study, about 96 of every 100 older drivers who did speed-of-processing training improved their Useful Field of View score, compared with about 63 of every 100 who did not train2. Improving a test score is not a guarantee about your driving, but it shows the underlying skill can change.
A strong result is reassuring, though it does not replace regular eye care as you age. A weaker result flags a risk you can work with early through eye care, training, habit changes, and, when appropriate, a driving evaluation. The goal is to keep you driving safely for as long as possible, and to plan ahead calmly if that changes.
When to See a Doctor About Your Vision and Driving
Some vision changes need urgent care, whatever your test score. Call an eye doctor or seek same-day care if you have:
- Sudden loss of vision in one or both eyes.
- A curtain or shadow moving across your sight.
- A sudden shower of new floaters or flashes of light.
- Sudden double vision, or a painful, red eye with halos around lights.
These can signal a problem that is treatable when caught quickly, so acting the same day protects your sight rather than assuming it will pass.
Book an exam soon, even without an emergency sign, if you notice new trouble with glare, road signs, or seeing at night. Not seeing road signs as clearly, trouble in low light, and difficulty with glare from headlights are common age-related changes that affect driving4. Catching a cause like cataract or glaucoma early often means simpler treatment.
Start with an optometrist or ophthalmologist for a full eye exam, and keep to yearly visits after age 60. If driving is the concern, ask about a driving evaluation. At-risk older drivers can be referred to a driving rehabilitation specialist for a comprehensive assessment5, which can also suggest training or vehicle changes that keep you on the road.
Common Questions About the Useful Field of View Test
No. A visual field test maps the outer edges of what your eyes can physically detect and is used to find eye disease such as glaucoma. The Useful Field of View test measures how quickly your attention takes in and locates what you see. You can have a normal visual field and still have a reduced useful field of view, because the two measure different things: one is about the eye, the other about speed of attention.
Not by itself. The Useful Field of View test is a clinical screen, not an official licensing exam, and one result does not decide your driving status. It is meant to guide a plan with your clinician, which might include an eye exam, training, or a formal driving evaluation. Licensing decisions follow their own process and usually rest on more than a single computer test.
Wear your usual driving glasses or contacts, get a normal night of sleep, and avoid rushing in flustered, since the task depends on attention. You do not need to fast, stop medications, or arrange a ride, because there are no drops and no recovery time. If you feel unwell or exhausted that day, it is reasonable to ask to reschedule for a fairer result.
A strong score is reassuring and is linked to lower crash risk in groups of drivers, but it cannot promise safety for any one person. Driving also depends on reaction time, physical movement, medications, judgment, and the specific roads you take. Use a good result as encouragement to keep up regular eye care and safe habits, not as a reason to skip them.
There is no fixed schedule, and how often you repeat it depends on your age, health, and any changes in your driving. Your clinician may suggest retesting after an eye treatment, after training, or if you or your family notice new difficulty on the road. Pairing it with your yearly eye exam is a practical way to track changes over time.
More Questions About Testing and Driving Safety
It may be given by an optometrist, an ophthalmologist, a vision therapist, or an occupational therapist who works in driving rehabilitation, depending on where you go. The person running it should explain the task, offer practice trials, and go over what the result does and does not mean. If a result concerns you, ask to be pointed toward a fuller eye exam or a driving evaluation.
Yes. Computer-based speed-of-processing training works on the same fast-attention skills the test measures, and studies show most older adults who train improve their scores. Improving a score is not a guarantee about real-world driving, but it suggests the skill itself can be strengthened. Ask your clinician whether a specific, studied program is a good fit for you before paying for one.
Coverage varies by plan, by where the test is done, and by why it is ordered, so there is no single answer. When the test is part of a medical eye exam or a driving rehabilitation evaluation, some of that visit may be covered, while a standalone screening often is not. Ask the office for the specific billing codes and check directly with your plan before your visit.
Start with a full eye exam to rule out treatable conditions, and mention the specific worries your family has raised. From there you can ask about a Useful Field of View test and, if needed, a driving evaluation with an occupational therapist. Approaching it as gathering information, rather than as a test to pass or fail, usually makes the conversation with family easier.
- What did my Useful Field of View result mean, and which risk band was I in?
- Could an eye condition be affecting my score, and do I need a full eye exam?
- Would speed-of-processing training or a driving evaluation help me?
- Are there roads, times, or conditions I should avoid for now?
- When should I be retested, and who should do it?
- BrainHQ (Posit Science) (2024). UFOV Assessment.
- Frontiers in Aging Neuroscience (2017). Effect of Speed of Processing Training on Older Driver Screening Measures.
- Cleveland Clinic (2023). Peripheral Vision.
- American Optometric Association (2024). Senior Vision: Over 60 Years of Age.
- Merck Manual Professional Edition (2024). Functional Assessment of the Older Driver.