Peripheral Vision Training: Exercises, Awareness & Limits

Try a peripheral-awareness exercise

The Quartenson trainer combines two tasks: judge a line at the centre and remember where a brief off-centre target appeared. It gives you something specific to practise without requiring an account. Start with an easy setting and use the introduction to learn the controls.

1. Sit comfortably with the whole board visible. Keep the same screen size and viewing distance for comparisons.
2. Look at the centre marker. During the brief display, notice the central line and the target away from it.
3. After the display, answer whether the line was horizontal or vertical, then select the target location.
4. Finish the session and review central accuracy, peripheral accuracy, and combined accuracy together.
5. If comfortable, repeat once with the same settings. Treat this as a short practice suggestion, not a validated training schedule.

Read both parts of the result

Central accuracy tells you how often you identified the line correctly. Peripheral accuracy describes your target-location answers. Combined accuracy counts trials where both answers were correct.

For example, 9 correct central answers and 7 correct location answers out of 10 do not necessarily mean 7 fully correct trials: the errors may occur on different trials. Use the combined result shown by the trainer.

If location accuracy rises while central accuracy falls, you may be shifting attention away from the centre rather than handling both tasks better. Slow down, use an easier setting, and check both measures again.

The browser does not track your eyes. A central answer is part of the exercise, not proof that you held your gaze still. There is no clinical pass score or universal good score for this tool.

Compare like with like

Keep difficulty, target layout, exposure settings, device, browser zoom, and viewing distance unchanged when comparing sessions. A phone and a large monitor do not present the same task geometry.

Use several completed sessions in local History instead of one best attempt. Change one setting at a time and begin a new comparison when you do. Better scores can reflect familiarity with the task; they do not establish better driving, sporting performance, reading, or general attention.

If you keep missing targets, first check that you understood the response order and can see the whole board comfortably. Avoid chasing the target with your eyes during the display. Pause if the exercise becomes uncomfortable or tiring.

Practice is not a peripheral vision test

An eye-care professional can examine your peripheral vision with a visual field test. The National Eye Institute describes this as checking how well you see objects to the sides without moving your eyes.

This browser exercise has not been validated as a visual field examination. Its results cannot identify blind spots, rule out eye disease, or determine whether you meet a driving standard. It is not treatment or a replacement for an eye examination.

National Eye Institute: what an eye examination checks

When to seek help instead of practising

Do not use a game to investigate new vision problems. Seek immediate eye care or emergency care for a sudden shadow or curtain in your vision, flashes of light, or a sudden increase in floaters. For other changes or concerns, contact an eye-care professional rather than trying to train through them.

National Eye Institute: retinal-detachment warning signs