How do you play the visual crowding reaction test?

Identify the direction of the center arrow and choose the matching large direction button or keyboard arrow before time runs out.

Flankers are the surrounding arrows. They can match the center target or point in a conflicting direction.

How is standard mode balanced?

Twenty rounds include five each of wide-consistent, wide-conflicting, narrow-consistent, and narrow-conflicting displays.

Is this a clinical vision test?

No. It is an entertainment and personal-training game, not a clinical measurement of vision or visual crowding.

CENTER TARGET · 20 ROUNDS

VISUAL CROWDING REACTION TEST

Ignore the surrounding arrows. Report only the direction of the center target.

ROUNDS0 / 20

Play 20 balanced rounds across wide/narrow spacing and consistent/conflicting flankers.

CORRECT0

ACCURACY—

AVG. REACTION—

BEST REACTION—

READY?

READ THE CENTER ARROW

Use the large direction buttons or your keyboard arrow keys. Ignore every flanker.

STIMULUS READY

Keyboard: Arrow keys · Touch or mouse: use the four large buttons. Answer the center target, not the flankers.

HOW TO PLAY

Keep attention on the exact center

01
A row of five arrows flashes inside the stimulus panel.
02
Ignore the four surrounding flankers and identify only the center arrow.
03
Choose its direction before the timing bar empties, even after the arrows become masked.

CENTER-TARGET FOCUS

Why vary spacing and flanker direction?

Close spacing makes the target and surrounding shapes visually compete. Conflicting flankers add a different directional response that you must ignore.

Standard mode balances all four spacing and consistency combinations so no single condition dominates the result.

ENTERTAINMENT CHALLENGE

Not a clinical vision assessment

This browser game is for entertainment and personal practice. It is not a validated test of visual crowding, acuity, or eye health.

Screen size, viewing distance, display quality, input hardware, and practice can change a score.

QUESTIONS

Visual crowding reaction test FAQ

Which arrow should I answer?

Always answer the center arrow. The other four arrows are flankers and should be ignored.

What are consistent and conflicting flankers?

Consistent flankers match the center direction. Conflicting flankers point in another direction.

Can I answer after the arrows disappear?

Yes. The answer window stays open briefly after the stimulus is masked.

Is this a clinical test?

No. It is a recreational visual attention game, not a medical or diagnostic assessment.