Guest history: up to 30 sessions
Review recent combined accuracy, peripheral accuracy, clean measurements, and answer time for each difficulty and session length.
Free Browser Tool
Free Peripheral Vision Exercise & Awareness Trainer
Each round asks you to remember a simple central symbol and report where a brief off-centre target appeared.
Choose how many measurements you want, complete the session, and review central accuracy, peripheral-location accuracy, clean measurements, and answer timing. This is a recreational awareness exercise, not a medical visual-field test.
Before you start
Use this exercise in a comfortable position with the screen at a normal viewing distance.
Keep your gaze relaxed near the centre. Do not strain, force your eyes to stay perfectly still, or continue if the brief targets feel uncomfortable.
This tool is designed for short visual-awareness practice. It is not a medical visual-field test.
Guest Peripheral Awareness History
Repeated sessions are easier to interpret with the same setup. For guests, the History button keeps recent sessions and a best-consistency record in this browser. Signed-in users can review supported results in account history.
Best consistency
The local record prioritizes combined accuracy first, then peripheral accuracy, clean measurements, and median answer time.
Guest history stays private
Guest history stays in this browser and is not sent to analytics. When signed in, supported result summaries are saved to your Quartenson account, not to analytics or Google.
For a meaningful trend, compare the same difficulty, measurement count, device, orientation, browser zoom, and viewing distance.
Who this peripheral awareness trainer is for
Use this tool when you want a short dual-task exercise that keeps attention near the centre while noticing brief off-centre targets.
Central-focus practice
Useful for people who want to keep attention near the centre while still noticing what appears away from it.
Accuracy-focused sessions
Good when you want feedback on both the central answer and the off-centre target location.
Repeatable awareness drills
Best for users who can keep the same device, distance, difficulty, and measurement count between sessions.
Compare Results With Benchmarks
Each browser tool includes a result benchmark below the trainer. After a completed session, guests can compare the current setup with anonymous community completions or sessions saved in this browser. Signed-in users can choose Your results to compare account history. Use benchmarks as practical context, not as a medical, safety, or diagnostic score.
Same setup only
Benchmarks are grouped by matching tool settings, such as grid size, mode, difficulty, trial count, device context, and input method.
Anonymous community view
Community charts use completion metrics only. They do not include account details, email, or your local progress history.
This-device view
Guests use sessions stored in this browser. Signed-in users can choose Your results to compare account history.
How the peripheral-awareness exercise works
Practice controls and useful comparisons
- Choose difficulty and measurement count before starting. Keep a relaxed gaze near the centre, then identify both the centre line and the off-centre diamond after the brief display.
- Guide is available before practice, between rounds, and after results. Finish the current measurement before opening it. Opening it between rounds pauses practice; resume when ready.
- Compare both answers, not just target location, using the same difficulty and setup. History stays on this device. Stop if the display is uncomfortable; this is not a medical visual-field test.
Each round briefly shows two things at the same time: a vertical or horizontal line at the centre and one diamond at an off-centre location.
After they disappear, identify the centre line and the target location. The central task encourages attention near the middle while noticing information elsewhere on the screen.
- Choose a difficulty.
- Wait for the brief stimulus.
- Remember the centre line.
- Notice where the diamond appeared.
- Answer both questions.
- Review the result after your selected measurements.
How to understand your result
| Metric | Meaning |
|---|---|
| Central accuracy | How often you identified the centre line correctly |
| Peripheral-location accuracy | How often you selected the correct target position |
| Combined accuracy | How often both answers were correct |
| Clean measurements | Measurements with both answers correct |
| Median answer time | The middle time taken to answer both questions |
Use combined accuracy as the clearest summary of the dual task, but review central and peripheral results separately to understand where errors occurred.
Compare sessions only when the difficulty, device, screen orientation, and browser zoom remain similar.
How to compare sessions fairly
Compare results only when the difficulty, device, screen orientation, browser zoom, and viewing setup are similar.
A result from a large desktop monitor should not be compared directly with a result from a small phone screen. Screen size and distance change how far the targets appear from the centre.
What this tool can and cannot tell you
This tool can show how accurately you answered a short browser task under the same settings.
It cannot tell you how wide your peripheral vision is, whether your visual field is normal, or whether you have an eye-health problem.
Medical visual-field testing requires controlled equipment, calibrated conditions, and professional interpretation.
| This tool can help you practise | It should not be used for |
|---|---|
| noticing brief off-centre targets | diagnosing vision loss |
| comparing your own sessions | measuring visual-field degrees |
| central + peripheral dual-task accuracy | driving-safety assessment |
| short visual-awareness routines | medical monitoring |
Why this is not a medical peripheral-vision test
A browser exercise cannot determine the true boundaries of your peripheral visual field from screen position alone.
Medical visual-field measurement requires controlled presentation conditions and methods for monitoring or supporting fixation. This trainer does not know your viewing distance, physical screen size, eye position, or whether you moved your gaze toward the target.
Research into online peripheral testing uses dedicated calibration and fixation methods that are outside this simple exercise's scope.
If you notice sudden vision loss, blind areas, flashes, or other concerning visual symptoms, seek advice from a qualified eye-care professional rather than relying on this tool.
What changes between difficulty levels?
| Level | Positions | Presentation | Best for |
|---|---|---|---|
| Easy | 4 | 500 ms | Learning the task |
| Standard | 6 | 300 ms | Normal sessions |
| Hard | 8 | 180 ms | Shorter presentation challenge |
A shorter presentation or a smaller target makes the task harder, but it does not represent a better or worse medical result.
Compare progress only within the same difficulty.
Tips for peripheral-awareness sessions
Keep your gaze relaxed
Look near the centre without straining or attempting to freeze your eyes completely.
Learn the central task
Make sure you can distinguish the vertical and horizontal centre lines before you start.
Avoid guessing
Choose the location you remember rather than tapping several directions.
Keep the device stable
Use a similar screen position and viewing distance when comparing sessions.
Use short sessions
One or two sessions are enough for a short break.
Stop if uncomfortable
Pause if the brief stimuli cause eye strain, discomfort, or frustration.
Peripheral Awareness, Visual Search, and Schulte Tables
| Tool | Main task | Primary result |
|---|---|---|
| Peripheral Awareness Trainer | Identify a brief centre symbol and off-centre location | Dual-task accuracy |
| Visual Search Test | Find one persistent target among distractors | Search time and accuracy |
| Schulte Table Trainer | Find a complete number sequence in one grid | Completion time and mistakes |
These tools use related visual skills but are not interchangeable.
Peripheral awareness uses a brief dual task. Visual search uses a persistent target among distractors. Schulte tables require sequential scanning.
If you want a persistent target-finding task instead of a brief off-centre target, try the Visual Search Test.
If you want sequential number scanning, try the Schulte Table Trainer.
Explore more free visual-training tools
Compare this dual-task awareness exercise with adjacent visual search, scanning, and response tasks.
Visual Search Test
Find the target among distractors
Speed • Accuracy • Focus
Visual Search Test
Browser toolGoal: Faster target spotting with better accuracy
Find one target among similar symbols, letters, or numbers. Complete ten short rounds and track median response time, accuracy, and clean results.
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Find the numbers in order
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Free Schulte Table Trainer
Browser toolGoal: Cleaner 5x5 rounds with fewer mistakes
Practice Schulte tables online with a simple browser grid. Choose 3x3 through 7x7, track time and mistakes, and use pause, shuffle, and keyboard controls for quick focus sessions.
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Median • Fastest • Spread
Reaction Time Test
Browser toolGoal: Response-speed measurement for one visual signal
Wait for an unpredictable visual signal, then respond as quickly as you can. Choose 1 to 10 trials and review your median, average, fastest time, and false starts.
Test Reaction TimeRelated guides
Learn what peripheral-awareness practice can and cannot do, along with other visual-scanning guides.
Peripheral Awareness6 min read
Peripheral Vision Training
Try a peripheral-awareness exercise, compare central and side-target accuracy, and learn why browser practice is not a clinical visual field test.
Peripheral Awareness7 min read
Screen-Free Peripheral Awareness
Try two seated, paper-based peripheral-awareness activities with a partner, a printable practice sheet and clear checks. Practice, not a visual field test.
Peripheral Awareness7 min read
Peripheral Awareness vs Visual Scanning
Compare peripheral awareness, visual search and sequential scanning through worked examples. Choose an exercise by its task, not just its score.
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Peripheral Practice on Phone vs Desktop
Practise peripheral awareness on a phone or desktop with a repeatable setup checklist. Understand screen size, viewing distance and when to separate results.
Continue training
Use the app for structured Schulte practice and longer-term focus tracking.
Schulte table training with progress
History, heatmaps, pace, and weekly review
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Quartenson: Schulte Tables
Available nowTrain Schulte tables on Android with session history, pace patterns, heatmaps, achievements, and weekly progress review.
Explore Schulte TablesFrequently Asked Questions
Short answers about what this awareness exercise can and cannot tell you.
What is a peripheral-awareness exercise?
It is a visual task where you keep attention near the centre while noticing information shown away from the middle of the screen. This tool combines a simple centre-identification task with off-centre target localization.
Is this a peripheral-vision test?
No. It is a recreational awareness exercise. It does not measure the medical visual field or diagnose peripheral-vision loss.
Does the result estimate my visual field?
No. Screen coordinates cannot be converted reliably into a real visual-field measurement without knowing the physical screen size, viewing distance, calibration, and eye position.
Should I keep my eyes completely still?
Try to keep a relaxed gaze near the centre, but do not strain or force your eyes to remain rigidly fixed. The tool cannot verify where you are looking.
Why does the tool ask about the centre symbol?
The centre question encourages you to maintain attention near the middle instead of ignoring the centre and looking directly toward the peripheral target.
What is a good result?
There is no universal benchmark for this implementation. Compare repeated sessions using the same difficulty, device, orientation, and viewing setup.
Why do results change between devices?
Screen size, viewing distance, browser rendering, orientation, and target spacing can all change how the exercise feels. Compare sessions on the same setup.
Why does screen size matter?
The same target position can feel different on a phone, tablet, laptop, or monitor. The tool uses screen positions, not calibrated visual-field degrees, so compare results on the same setup.
Can this improve peripheral vision?
The tool provides a short exercise for noticing brief off-centre targets while completing a central task. It does not guarantee changes in eyesight, visual-field width, reading speed, sports performance, or everyday safety.
Is the tool suitable for diagnosing an eye problem?
No. Do not use it to diagnose or monitor an eye condition. Consult a qualified eye-care professional if you have concerns about your vision.
Does the tool save my result?
Yes. Without an account, if your browser allows local storage, the tool keeps up to 30 completed sessions per difficulty and measurement count, plus a best-consistency record, in this browser. When you are signed in, supported result summaries are saved to your Quartenson account and appear in account history. Clear local history removes guest records stored here.
How does the result benchmark work?
After a completed session, the benchmark compares matching tool settings. The Community view uses anonymous aggregate results. Guests can use This device for sessions stored in this browser; signed-in users can choose Your results to load account history.
What data is used for the community benchmark?
Quartenson uses only the result metrics needed for comparison, such as time, accuracy, mistakes, level, or clean trials. It does not use account details, email, or local history for the community chart.
Why might the benchmark show not enough data?
A benchmark needs enough matching completions for the exact setup. If there is not enough data yet, the chart may be hidden until more matching results are available.