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Gaze behaviour, quiet eye and why 'vision training' oversells itself.
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Elite athletes do not have superhuman eyes; they have better gaze strategies. That distinction is the whole field — and it is where most commercial 'vision training' quietly falls over.
What this field actually measures
- Static visual acuity
Standard eye-chart resolution.
ReferenceElite athlete populations often measure better than 20/20, with values near 20/12 reported in professional baseball samples.
LimitAcuity is a weak predictor of performance on its own.
- Quiet eye duration
Final stable fixation on a target before movement begins.
ReferenceLonger quiet-eye periods are consistently associated with expert accuracy in aiming tasks.
- Dynamic visual acuity
Resolving detail on a moving target.
ReferenceDiscriminates expertise better than static acuity in interceptive sports.
Evidence & metrics
The published work behind the numbers above, and the public datasets you can open to check us. If a claim can’t be traced here, we don’t print it.
Citations
Eye movements and quiet eye in expert performance
Vickers — Perception & Action / Journal of Experimental Psychology · 1996–2016
Experts show a longer final fixation before movement onset, and quiet-eye training can transfer to performance.
Visual training for sport: a systematic review of the evidence
Appelbaum & Erickson — International Review of Sport and Exercise Psychology · 2018
Generalised vision training shows weak transfer to sport performance; task-specific training fares better.
Datasets
GazeBase / open eye-tracking corpora
Figshare, Texas State University · free
Large longitudinal eye-movement recordings at high sampling rates.
PubMed sports vision literature
US National Library of Medicine · free
Trials of visual acuity, contrast sensitivity, and gaze training in athletes.
Still open
- Do generic perceptual-training products transfer to sport-specific tasks?
- How much gaze behaviour is trainable in adults?
- Can eye-tracking become a routine, non-intrusive in-game measurement?
What we won’t say
We will not sell 'training your eyes.' The evidence supports training where you look, which is a different product.
- VO-1Evidence before wit
- VO-2Punch at claims, never at people
- VO-3Say the uncertainty out loud
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