Memory Flash
Visual memory
“How much can you hold in mind?”
Best —
Round —
Accuracy —
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Visual and cognitive training
Look. Remember.
Go further.
Three exercises for attention, memory and perception. Each one has 3 stages of 10 rounds, a saved score and a personal report.
FOCUS exercises
Visual Radar
Attention and speed
“How much do you catch at a glance?”
Best —
Round —
Accuracy —
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Track the Targets
Focus in motion
“Can you stay focused when everything moves?”
Best —
Round —
Accuracy —
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How it works.
3 stages × 10 rounds per game. Difficulty rises gradually. If you make a mistake, you replay the round without losing your score. You get a preliminary report after stage 1 and a final summary after stage 3.
| Game | How it works | What you train |
|---|---|---|
| Memory Flash | Shapes light up one by one. You repeat them in the same order; each round adds one signal. | Visual working memory and keeping things in order. |
| Visual Radar | You look at a central symbol and spot where a target flashes briefly in the periphery. | Divided visual attention and fast information processing. |
| Track the Targets | A few dots are marked, then they all move. At the end you pick out the original ones. | Visual tracking and attention to several objects at once. |
My progress.
Pick a nickname to see your scores, the round you reached and your accuracy in each game.
From research to exercise.
Each exercise is based on paradigms used in studies of attention, memory and perception. Here is what the research shows and how it connects to the FOCUS games.
01 / Memory Flash
Sequential visual memory
You keep the order of the signals in mind and rebuild the sequence. It resembles the “span” tasks used in working memory research.
In your report: sequence length, accuracy, pace.
Schwaighofer, Fischer and Bühner, 2015
Meta-analysis · 47 studies · Educational Psychologist
Working memory training improved short-term memory tasks close to the ones practised; transfer to broader abilities was limited.
Read the study
WOME study, 2018
Randomised, placebo-controlled · 60 older adults
12 sessions over 4 weeks improved working memory measures, including a related untrained task; effects faded at follow-up.
Read the study02 / Visual Radar
Visual attention and fast processing
You identify a central cue and the position of a peripheral target shown for an instant. The structure follows the Useful Field of View (UFOV) test.
In your report: accuracy, display time reached, response time.
Iowa Healthy and Active Minds Study
Wolinsky et al. · Randomised trial · 681 adults aged 50+
One-year results, PLoS ONE (2013)
The “Road Tour” visual processing speed programme improved UFOV performance compared with a crossword-puzzle control group.
Post-training results (2011)One-year results, PLoS ONE (2013)
03 / Track the Targets
Multiple object tracking
You keep your attention on several identical moving targets. This is the Multiple Object Tracking (MOT) paradigm.
In your report: correct targets, number of objects, speed.
Pylyshyn and Storm, 1988
Spatial Vision 3(3) · The Multiple Object Tracking paradigm
Participants tracked up to 5 targets among 10 identical objects. The paper introduced the paradigm still used in attention research.
Read the study
Romeas et al., 2016 · 2025
3D-MOT training in football players
The 2025 study
A small study (23 players) reported better passing decisions after training. A larger study (62 players) found no transfer to on-field performance, although MOT scores rose.
The 2016 studyThe 2025 study
Research-inspired exercises. The studies cited evaluated other tasks or programmes; FOCUS reports describe your performance in the exercise.
Uses in medicine
Digital therapies in ophthalmology
Approved digital therapies exist, mainly for amblyopia (“lazy eye”). They show a different image to each eye (a dichoptic approach) so the brain also uses the weaker eye.
FOCUS is not a medical device. These games do not treat amblyopia and do not change your prescription. The therapies below are used only when recommended by an eye doctor.
Luminopia
Therapeutically modified TV shows watched in a VR headset. FDA De Novo authorisation in October 2021. In a randomised trial of 105 children aged 4–7, amblyopic-eye acuity improved by 1.8 lines in 12 weeks, versus 0.8 lines with glasses alone.
Study in Ophthalmology (2022)CureSight
Home treatment using eye tracking: the image for the dominant eye is blurred in real time where the child is looking. FDA 510(k) clearance. A randomised trial of 103 children aged 4–8 found it non-inferior to eye patching.
Study in Ophthalmology (2023)