
The Science Behind EyeGym
Grounded in decades of research, EyeGym’s vision training is backed by proven science.
For over 30 years, EyeGym has been revolutionising visual training, giving athletes, students, professionals, and teams the competitive edge they need to excel. Founded by Dr. Sherylle Calder, a pioneer in the science of vision and performance, EyeGym has helped thousands unlock their full potential.As a global leader in visual intelligence, we combine cutting-edge technology with decades of research to sharpen focus, accelerate reaction time, and enhance decision-making. Our proven, science-backed training programs optimise how the brain and eyes work together, empowering users to perform at their peak—on the field, in the classroom, and beyond
The Key Scientific Principles
Explore the Core Scientific Concepts Behind EyeGym
Visual Cognitive Training
Enhance your brain's ability to process visual stimuli and improve reaction time.
Eye-Brain Coordination
Improve visual awareness, eye-tracking, and decision-making.
Proven Results
Validated by elite sports teams and educational institutions with international success.
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MY PHD
publications
Sport: Cricket Research.
Calder, SL: Kluka, DA 2009. The efficacy of a Visual Performance training software programme on South African cricketers. Africa Association for Health, Physical Education, Recreation, Sport and Dance 2009. Vol. 15, no. 1, pp. 44-61 The issue of enhancing an already superior visual system in elite athletes has led to several investigations dealing with intervention programmes designed to enhance visual performance. The influence of visual skills enhancement programmes has been investigated (Coffey & Reichow, 1990 ; Calder, 2005 ; Love, Kluka, & Young, 2006 ; Kluka & Love, 2006). Researchers (Kluka & Love, 2006 ; Kluka, Love, Covington, Bristow, & Allison, 2000) have reported that elite athletes, when compared to nonathletes, have superior visual abilities, measured through contrast sensitivity function, peripheral vision, visual reaction time, static visual acuity, eye movements, visual concentration, visual recognition and static / dynamic balance. Practical limitations, however, involves applicability to athletes. Where geographical location is considered, access to such training is a factor. A software programme was developed as an internet-based, self-administered intervention. Accessed through a personal computer with an internet link, the programme was designed to improve athlete's visual abilities and decision making.
The aim of this investigation was to determine the efficacy of the visual training software programme on selected cricket players. Thirty cricket players participated. Each player had at least 3 years of cricket playing experience. Participants were divided into 2 groups (E = 15) and (C = 15). Four phases of assessment were involved : (1) Series of preliminary visual assessments to establish testing protocol ; (2) Pre-training programme assessment (pretest) using six different visual skills tests and five different cricket-specific skill tests (baseline data) ; (3) Three-week training programme using the software programme or a placebo; (4) Post training assessment (post test) using 6 visual and 5 cricket-specific tests. All outcome variables were analyzed using a RM-ANOVA (group X time). Where significant interaction (p < 0.05) effects were found, post-hoc analyses were performed (Tukey's HSD). In all tests involving visual skills, E performances showed greater improvement when compared to C performances. The efficacy of the visual training software programme led to significant improvements in the performance of cricketers in almost all visual skills. In contrast, there was minimal to moderate improvement in all tests with the exception of the horizontal and vertical saccades in C. It was confirmed that the visual training software programme is suitable to use in the enhancement of selected visual and sport-specific skills in cricketers.
Academic Research: Pilot Study (On-going)
The affect of a Visual Performance Training Program 1(VPT1) and Visual Performance Training Program 2 (VPT 2) on relational thinking when relationships are formulated in verbal terms.
Research at The Harefield Academy UK October – December 2008 - Sport Science Institute of South Africa A total of 60 students across 3 year groups (Years 8, 9 and 10) were initially selected to take part in this research. Using prior data (CATs scores from Year 7) the students were selected from upper, middle and lower ability categories. In addition, some students were also selected from those identified as:
.having a sporting talent,
.special educational needs or
.emotional and/or behavioural difficulties
The students were required to ‘train’ for a minimum of 3 x 30 minute sessions per week over a period of 6 weeks. Facilities were made available for them to complete this requirement during 3 personalised learning sessions each week.
Results
Of the 60 students on the training programme, 43 students had results for both sets of CATs tests. Thus the results and analysis are based on these 43 students.
The results showed that 72% of student (31 students) improved their CATs raw score total over this 6 week period. For 11.6% (5 students) there was no change in CATs score and for 16.2% (7 students) there was a decline in their CATs score as they did not do the required number of sessions.
Of the 31 students who improved their score, 12 (38.7%) improved their score by a significant 10%
In the Press
Golf 'The Eye Lady' Helps Ernie Els Regain His Putting Mojo
Ernie Els credits a South African vision specialist with helping him sink a clutch putt to win his fourth major championship.

Sherylle Calder: Proven visionary
The vision coach has worked closely with the All Blacks, the Australian Test cricket side, South African golf legend Ernie Els and many other elite teams and athletes over the past 30 years.
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The doctor transforming elite athletes with her all-seeing eye
Whatever you may observe, whatever you may come across, you won’t spot the things that Dr. Sherylle Calder can see.
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How Eddie Jones’ innovations turned England into one of the most vaunted sides in world rugby…
Dr Sherylle Calder has spent time at Pennyhill Park improving the players’ peripheral vision. The EyeGym training is also designed to enhance.

Ernie Els: A Pattern of Enduring Excellence at The Open / Chronicles Unseen
When Ernie Els finished tied-fifth at The 121st Open, in only his second appearance at golf’s original Championship, he knew he had achieved a result

Calder wil Stormers help om vernuwend te dink, sien
Sy sou veel eerder aan die "groen kant" van verlede jaar se Wêreldbekerrugby-eindstryd wou wees om haar derde goue medalje te kon wen

Can you improve your speed and reactions by training your eyes? We went to find out.
On the screen, an orange coloured shape appears and my hand slaps down on the spacebar.

Evidence ‘de-learning’ of rugby skills during lockdown, extended use of digital devices may be to blame.
A decline in the players’ fitness was expected after six months in lockdown, but experts, including Dr Sherylle Calder, believe...


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