Virtual Reality Video Games Research Articles

Virtual Reality in the Classroom: Transforming the Teaching of Electrical Circuits in the Digital Age

In response to the digital transformation in education, this study explores the efficacy of virtual reality (VR) video games in teaching direct current electrical circuits at a public university in Colombia. Using a mixed-method action research approach, this study aimed to design, implement, and evaluate a VR-based educational strategy to enhance undergraduate learning experiences. The methodology integrated VR into the curriculum, facilitating a comparison of this innovative approach with traditional teaching methods. The results indicate that the VR strategy significantly improved students’ comprehension of electrical circuits and increased engagement, demonstrating the utility of immersive technologies in educational settings. Challenges such as the need for technological integration and curriculum adaptation were also identified. This study concludes that VR video games can effectively augment electrical engineering education, offering a model for incorporating advanced digital tools into higher education curricula. This approach aligns with ongoing trends in digital transformation, suggesting significant potential for broad applications across various educational contexts.

Dynamic Difficulty Adaptation Based on Stress Detection for a Virtual Reality Video Game: A Pilot Study

Virtual reality (VR) is continuing to grow as more affordable technological devices become available. Video games are one of the most profitable applications, while rehabilitation has the most significant social impact. Both applications require a proper user evaluation to provide personalized experiences that avoid boring or stressful situations. Despite the successful applications, there are several opportunities to improve the field of human–machine interactions, one of the most popular ones being the use of affect detection to create personalized experiences. In that sense, this study presents the implementation of two dynamic difficulty adaptation strategies. The person’s affective state is estimated through a machine learning classification model, which later serves to adapt the difficulty of the video game online. The results show that it is possible to maintain the user at a given difficulty level, which is analogous to achieving the well-known flow state. Among the two implemented strategies, no statistical differences were found in the workload induced by the users. However, more physical demands and a higher frustration were induced by one of the strategies, validated with the recorded muscular activity. The results obtained contribute to the state of the art of DDA strategies in virtual reality driven by affective data.

Nintendo’s new normal?

Research methodology This case was written with publicly available information about Nintendo. Case overview/synopsis In the 1980s and 1990s, Nintendo dominated the video game industry with a market share of 90%. In 2020, Nintendo’s market share dropped to nearly 31%. This case examines a 40-year history of Nintendo, including its core strategy of video game and video game console development and its growth strategy using its intellectual property. Throughout its history, Nintendo has faced and continues to face stiff competition from Sony, Microsoft and new emerging technologies like virtual reality video games. Nintendo has the challenge of competing in a rapidly changing industry with changing customer preferences where it once had a dominant market share. Can Nintendo continue competing, relying on its core competency of developing new video games and consoles? Or moving forward, should it further define itself more broadly by continuing to leverage its intellectual property in the entertainment industry? Complexity academic level This case is suitable for undergraduate courses in marketing, marketing management and business strategy, or where an instructor focuses on strategic decision-making. This case will provide valuable in-class discussions on the importance of defining what a business should do and how it should grow. Additionally, this case will be useful for courses that include advanced discussions on tradeoffs between focusing on core competencies and growth by expanding into other opportunities that are not necessarily part of a business’s core strategy. A portion of this case was tested in an undergraduate marketing strategy and marketing principles course. The case created an excellent environment for critical thinking and analysis.

Application of immersive virtual reality in the training of wheelchair boxers: evaluation of exercise intensity and users experience additional load– a pilot exploratory study

BackgroundOver the last few years, there has been a growing interest in workout apps and active virtual reality video games (AVRGs), which provide entertainment and enable users to undertake various forms of physical activity (PA) at home. Presumably, these types of exercises can be particularly useful for people with physical disabilities, who experience problems with access to sports and leisure facilities due to architectural and communication barriers. However, it is interesting whether the intensity of PA in VR is high enough to provide users with health benefits, as it is mainly based on arm movements.ObjectiveThe main aim of the study was to evaluate the intensity of physical exercise of wheelchair boxers during a boxing training session using the FitXR app in immersive VR in light of health-related PA recommendations. The effect of Velcro-fastened hand-held weights (HHWs) on the intensity of PA undertaken by people in VR was also examined, and the attractiveness of virtual exercise were assessed in the opinion of users.MethodsPA intensity was evaluated using a heart rate monitor based on the percentage of maximal heart rate (% HRmax) and the Borg’s rating of perceived exertion (RPE 6–20). The attractiveness perceived during exercise by users were evaluated using the Physical Activity Enjoyment Scale (PACES 1–7 scale).ResultsThe study shows that the exercise intensity of the athletes during wheelchair boxing training in VR is at a beneficial moderate level for health (HRave=68.98% HRmax). The use of HHWs (0.5 kg) does not significantly increase the PA intensity of the individuals during virtual exercise. Users with disabilities highly rated the attractiveness (6.32 ± 0.79 points) of PA during virtual boxing training.ConclusionsBoxing exercises in VR can be an attractive and health-related form of PA for wheelchair boxers and a supplement to their conventional training.

Exploring actual and perceived levels of physical activity intensity during virtual reality active games.

Research suggests that engaging in active virtual reality (VR) video games can elicit light to moderate levels of physical activity (PA), making it a novel and fun mode of exercise. Further research is needed to understand the influence of VR on perceptions of exertion and enjoyment during PA. The objectives of this study are (1) to compare actual and perceived exertion within and between active VR games with varying levels of difficulty and (2) to determine how playing active VR games influences PA enjoyment during gameplay. A total of 18 participants completed four separate study sessions, during which they engaged in either a 15-min bout of traditional exercise (stationary cycling) or played one VR game. Heart rate (HR) and ratings of perceived exertion (RPE) using the Borg CR10 scale were assessed during VR gameplay and cycling. Enjoyment was measured after gameplay. VR games included playing Holopoint at level 2 and level 3 and Hot Squat. Repeated measures ANOVAs were used to examine (1) changes in HR and RPE across time within games and (2) differences in actual and perceived levels of intensity and enjoyment between games. Bivariate correlations examined the relationship between the degree of change in actual intensity and the degree of change in perceived intensity during each VR game and cycling. The analyses revealed that RPE and HR significantly increased from baseline during each condition and generally increased across the 15-min of gameplay. Hot Squat and cycling elicited a significantly higher percentage of heart rate reserve (%HRR) than Holopoint at levels 2 and 3. Holopoint level 3 elicited a higher %HRR than Holopoint level 2. The participants reported greater average and max RPE during Hot Squat and cycling compared with Holopoint at levels 2 and 3. The correlations revealed a significant positive correlation between the degree of change in HR and RPE for cycling, but no significant correlations were observed for any of the VR conditions. The physical activity during Holopoint at both levels was rated as more enjoyable than Hot Squat and cycling. Our data support the notion that VR has the potential to alter individuals' perceptions of exertion during PA and, in particular, may reduce their awareness of increases in actual exertion.

Virtual Reality Video Game Improves Memory in Older Adults

The ability to remember detailed information is called high-fidelity long-term memory. We use high-fidelity long-term memory to remember the details of our favorite stories and how to track which family member a green pair of socks belongs to. As we age, the ability to remember these details declines as the health of the brain changes. We created a virtual reality video game called Labyrinth-VR, with the aim to restore memory. When playing Labyrinth-VR, participants practice figuring out where they want to go using the shortest route to get there. In Labyrinth-VR, participants learned a virtual neighborhood and then had to find their way around to run errands. In our study, 49 older adults played either 12 h of Labyrinth-VR or 12 h of iPad games. The results of tests of high-fidelity long-term memory showed that playing Labyrinth-VR, but not iPad games, led to improvements in participants’ scores.

Heterogeneities of the perceptual-motor style during locomotion at height.

In a recent review, we summarized the characteristics of perceptual-motor style in humans. Style can vary from individual to individual, task to task and pathology to pathology, as sensorimotor transformations demonstrate considerable adaptability and plasticity. Although the behavioral evidence for individual styles is substantial, much remains to be done to understand the neural and mechanical substrates of inter-individual differences in sensorimotor performance. In this study, we aimed to investigate the modulation of perceptual-motor style during locomotion at height in 16 persons with no history of fear of heights or acrophobia. We used an inexpensive virtual reality (VR) video game. In this VR game, Richie's Plank, the person progresses on a narrow plank placed between two buildings at the height of the 30th floor. Our first finding was that the static markers (head, trunk and limb configurations relative to the gravitational vertical) and some dynamic markers (jerk, root mean square, sample entropy and two-thirds power law at head, trunk and limb level) we had previously identified to define perceptual motor style during locomotion could account for fear modulation during VR play. Our second surprising result was the heterogeneity of this modulation in the 16 young, healthy individuals exposed to moving at a height. Finally, 56% of participants showed a persistent change in at least one variable of their skeletal configuration and 61% in one variable of their dynamic control during ground locomotion after exposure to height.

Mapping EEG Alpha Activity: Assessing Concentration Levels during Player Experience in Virtual Reality Video Games

This work presents a study in which the cognitive concentration levels of participants were evaluated using electroencephalogram (EEG) measures while they were playing three different categories of virtual reality (VR) video games: Challenging Puzzlers, Casual Games, and Exergames. Thirty-one voluntary participants between the ages of 17 and 35 were recruited. EEG data were processed to analyze the brain’s electrical activity in the alpha band. The values of power spectral density (PSD) and individual alpha frequency (IAF) of each participant were compared to detect changes that could indicate a state of concentration. Additionally, frontal alpha asymmetry (FAA) between the left and right hemispheres of the brain was compared. The results showed that the Exergame category of video games elicited higher average cognitive concentration in players, as indicated by the IAF and FAA values. These findings contribute to understanding the cognitive effects of VR video games and their implications for designing and developing VR experiences to enhance cognitive abilities.

Developing and Evaluating a Virtual Reality Videogame Using Biofeedback for Stress Management in Sports

AbstractStress is a reaction of the body to external challenges, whether physical or psychological. In sports, there are stress factors that affect the athlete's performance, especially in team sports that involve short, high-intensity exercise cycles followed by short recovery periods, such as American football. The lack of stress regulation mechanisms can be detrimental to the individual and collective performance of athletes. Biofeedback systems have shown promising clinical results in regulating stress for sports competitions. However, there is a lack of scientific evidence to support their efficacy, and technologies, such as virtual reality videogames, have not been extensively explored. In this article, we present the development and pilot testing of Virtual Autonomic Nervous System (VANS), a virtual reality videogame using biofeedback that supports stress management training in athletes. VANS uses an optical heart rate sensor and aims at keeping the heart rate below a given threshold to control features within the game. We evaluated the usability and user experience of VANS through a 1-week deployment study with 10 American footballers. Our results show that VANS outperformed a commercial videogame used for biofeedback training and considerably reduced stress in our participants. Therefore, VANS could provide stress management training for future matches and competitions. Finally, we reflect on aspects of our design and discuss future directions of our work.

Where to look? Sustaining Presence While Directing Attention in Virtual Reality Stories.

Humans have been fascinated with the notion of submerging themselves in other spaces since antiquity, or even before. As the contemporary media landscape seeks to employ newer immersive practices, particularly in today’s Metaverse environment, storytelling in immersive media such as virtual reality (VR) is still developing and being described. The notion of scale and (newfound) viewer agency afforded by VR has challenged VR film-makers, particularly in directing attention towards story beats and handling user interaction. The video gaming industry, as a platform that is built with immersion as the core of the experience, leads this development. The advent of virtual reality (VR) video games is developing an amalgamation of immersive strategies to induce the sense of presence within virtual worlds. In this article I look at current approaches and challenges faced when directing attention in films and storytelling in VR. I then consider strides taken in VR video games, namely Half-Life: Alyx (2020), to propose that directing techniques and immersive strategies employed in VR video games can be used to develop new strategies in VR films and storytelling.

Vestibular rehabilitation potential of commercially available virtual reality video games

BackgroundPeripheral vestibular disorders affect 2.8–6.5% of people. Standard treatment is vestibular rehabilitation therapy, and virtual reality (VR) could improve outcomes. The objective of this study was to identify the commercially available VR video game that is most congruent to vestibular rehabilitation therapy.MethodsA term search “virtual reality racing” was performed on the App Store in March 2022. Results were screened for free point-of-view racing games compatible with Android and iOS devices. An investigator was filmed playing each game and videos were distributed to 237 physiotherapists. Physiotherapists completed a survey of 5-point Likert scale questions that assessed the video games vestibular rehabilitation potential. Survey responses were analyzed using Friedman Two-Way ANOVA (alpha = 0.05) and paired samples sign test with Bonferroni correction.ResultsThe search yielded 58 games, 4 were included. Forty physiotherapists participated. VR Tunnel Race (VRTR) and VR Real World Bike Racing (VRWBR) had the greatest vestibular rehabilitation potential (median global scores = 18.00). VRTR replicated habituation exercises significantly (p < 0.001) better than Derby VR, and VRWBR replicated physiotherapist-prescribed exercises significantly (p < 0.001) better than VR X-Racer. There were no discernable significant differences between VRWBR and VRTR.ConclusionsVRTR and VRWBR are the most congruent VR games to standard vestibular rehabilitation. VRWBR is preferable to VRTR with respect to ease of use and the ability to alter the amount of optokinetic stimulation. Prospective studies are needed to confirm the efficacy of these videos games and to determine if they could be used as solitary treatments.Trial registration: Not applicable.Graphical abstract

Virtual reality and videogames: immersion, presence, and the performative spatiality of ‘being there’ in virtual worlds

ABSTRACT Virtual worlds and their numerous digital geographies are ubiquitous in everyday life. This article addresses the intersection of two increasingly popular mediums: virtual reality and videogames. It argues that the immersion, presence, or sense of being in a virtual world is performative: that inhabitations of virtual space are constituted through social, cultural, and material relations. Through critical observations of virtual reality videogame play and in-depth interviews with players, this article shows how virtual worlds are socially and culturally shaped spaces of interaction. This article establishes the potential of ongoing geographic engagement with complex virtual worlds and how they exceed any one form or interface. It concludes by suggesting new directions for research in geographies of videogames, virtual worlds, virtual reality and their diverse spatialities.

Virtual Reality Applications in Medicine During the COVID-19 Pandemic: Systematic Review.

BackgroundVirtual reality can play an important role during the COVID-19 pandemic in the health care sector. This technology has the potential to supplement the traditional in-hospital medical training and treatment, and may increase access to training and therapies in various health care settings.ObjectiveThis systematic review aimed to describe the literature on health care–targeted virtual reality applications during the COVID-19 crisis.MethodsWe conducted a systematic search of the literature on the PsycINFO, Web of Science, and MEDLINE databases, according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines. The search string was as follows: “[(virtual reality)] AND [(COVID-19) OR (coronavirus) OR (SARS-CoV-2) OR (healthcare)].” Papers published in English after December 2019 in peer-reviewed journals were selected and subjected to the inclusion and exclusion criteria. We used the Mixed Methods Appraisal Tool to assess the quality of studies and the risk of bias.ResultsThirty-nine studies met the inclusion criteria. Seventeen studies showed the usefulness of virtual reality during the COVID-19 crisis for reducing stress, anxiety, depression, and pain, and promoting physical activity. Twenty-two studies revealed that virtual reality was a helpful learning and training tool during the COVID-19 crisis in several areas, including emergency medicine, nursing, and pediatrics. This technology was also used as an educational tool for increasing public understanding of the COVID-19 pandemic. Different levels of immersion (ie, immersive and desktop virtual reality), types of head-mounted displays (ie, PC-based, mobile, and standalone), and content (ie, 360° videos and photos, virtual environments, virtual reality video games, and embodied virtual agents) have been successfully used. Virtual reality was helpful in both face-to-face and remote trials.ConclusionsVirtual reality has been applied frequently in medicine during the COVID-19 pandemic, with positive effects for treating several health conditions and for medical education and training. Some barriers need to be overcome for the broader adoption of virtual reality in the health care panorama.Trial RegistrationInternational Platform of Registered Systematic Review and Meta-analysis Protocols (INPLASY) INPLASY202190108; https://inplasy.com/inplasy-2021-9-0108/

Digital Games for Down Syndrome Children’s Language and Cognitive Development

Down syndrome is considered to be one of the most prevalent genetic causes of intellectual disability, derived from chromosomal disorder, which accounts for dysfunctions in many organs and has a characteristic phenotype, which consists of physical and behavioral features. Many studies have shown that language is one of the most impaired areas of function in Down syndrome and perhaps, the highest barrier for their substantial inclusion into formal education and community. The aim of this paper is to investigate the specific features of this linguistic phenotype, presenting the strengths and weaknesses of their language, as well as the factors that contribute to their formation, compared to normally developing children. In addition, it scopes to highlight the role of educational mobile apps, as innovative and interactive tools for the developmental learning of Down syndrome children. The results of the research indicate that their language goes through the same, with typical development sequences, but progressively erases a slowing trajectory and results in lower performance. However, the use of digital games, especially virtual reality video games, can, significantly, improve their cognitive and fine mobile functioning and also the acquisition of literacy, language and math skills, in order to upgrade their quality of life.

CLAUSTROPHOBIA VISUAL STUDIES AMONG UNIVERSITI SAINS MALAYSIA (USM) STUDENTS: MEDIA MAPPING ART ASSISTS IN THE ACCEPTANCE OF SMALL SPACES

A study on visuals that can provide comfort to students of Universiti Sains Malaysia (USM) suffering from claustrophobia. According to previous studies, the visuals on display have helped claustrophobes in coping with their phobias. For example, Rizki Arif Darmawan and also Dody Pernady have made a study on claustrophobia patients using visuals from Virtual Reality (VR). The researcher uses VR to address this problem. The study needs to use virtual reality video game applications. The results of this project show that by using visuals, able to give claustrophobia patients to go through the narrow conditions that they must go through every day.&#x0D;

Smith and Smitherson’s Theatre of the Absurd

Smith and Smitherson’s Theatre of the Absurd

MO1049: An Intradialytic Exercise at Start versus End of HD Session to Improve Strength with Non-Immersive Virtual Reality: A Randomized Controlled Trial

Abstract BACKGROUND AND AIMS Haemodialysis (HD) induces changes in addition to the kidney in other organs or systems so that patients usually present symptoms such as fatigue, generalized muscle weakness and low tolerance to exercise that result in functional impairment, decreased work capacity and dependence for activities of daily living. Intra-dialysis exercise programmes may help to partly reverse this situation. Exercise during the first 2-h of dialysis has proven to be safe. Our group showed that an acute session of virtual reality exercise during the last 30 min of HD was safe too. The aim of this study was to compare the impact of non-immersive virtual reality intra-dialysis during the first 2-h versus the last 2-h of dialysis on lower-limbs muscle strength. METHOD This was a randomized controlled trial. Participants were randomized in two groups: group A performed the exercise during the first and second hour of the HD session and group B performed it during the third and fourth hour. Strength was measured bilaterally with a hand-held Lafayette dynamometer in three movements of the lower limbs (hip flexion, hip abduction and plantar flexion) during the HD session. The intradialytic exercise consisted of a non-immersive virtual reality video game adapted to the dialysis session, in which the patient must catch treasures while avoiding bombs by moving the lower extremities, with a progressive duration of 25–45 min, over a 12-week period. RESULTS A total of 33 subjects were included in the analysis, 17 subjects (median age 71.8 years; 10 men) in group A and 16 subjects (median age 73.3 years, 9 men) in group B. At baseline the period analysed, there were no significant differences between the two groups in any of the movements analysed. The force analysed in the different movements showed that there was a significant increase in all the movements analysed in both groups. There was an increase in force in the movements of the lower right limb of 3.31 N in hip flexion, 2.01 N in hip abduction and 1.10 N in plantar flexion, as well as an increase in the outside in the lower left limb of 3.82 N in hip flexion, 2.47 N in hip abduction and 4.63 N in plantar flexion. There were no significant differences in the increase in strength in the movements analysed between both groups in the movements analysed after the 12-week period analysed. CONCLUSION There are no differences in the application of an intradialytic exercise at the beginning versus at the end of the HD session to improve strength with non-immersive virtual reality. An intradialytic exercise with non-immersive virtual reality improves limb strength in HD patients.

MO597: An Intradialytic Virtual Reality Exercise Intervention to Reduce Frailty in a Hemodialysis Population: Revid Study

Abstract BACKGROUND AND AIMS Hemodialysis (HD) induces changes not just to the kidney but in other organs or systems so that patients usually report fatigue, weakness, weight loss, exhaustion, or low levels of physical activity, all present in the frail phenotype criteria. Because its association with negative health-related outcomes, frailty is considered an important issue to mitigate and manage in the hemodialysis population. However, very few studies analyzing the frail phenotype have focused on hemodialysis populations, despite the knowledge that frailty can be reversible after an early detection and treatment. On the other hand, our group has shown that nonimmersive virtual reality exercise during hemodialysis is a safe modality to improve physical function and health-related quality of life. Therefore, the aim of this study was to analyze the impact of an intradialysis nonimmersive virtual reality exercise program on the frail phenotype in a hemodialysis population. METHOD An ongoing randomized trial (ReVID study) enrolls subjects undertaking hemodialysis from June 2021 onward. All participants were assessed using the five Fried frail phenotype criteria as follow; Unintended weight loss in the past year greater than 4.5 kg, self-reported exhaustion was measured using two questions from the Center for Epidemiologic Studies Depression (CES-D) scale, weakness (hand-grip strength) was measured using a hand-grip dynamometer, slow walking speed was measured based on time to needed to cover 4.6 m at usual speed, and low physical activity was measured by using the short version of the Minnesota Leisure Time Activity questionnaire. Each of the five criteria scored as 0 (no frail-related) or 1 (frail-related). Finally, participants were stratified as follows: a score of 0/5 for robust or not frail, a score of 1–2/5 for pre-frail and a score of 3–5/5 for frail. After the frail phenotype assessment, all participants performed an intradialytic exercise program consisting of a nonimmersive virtual reality video game adapted to the dialysis session, in which the patient must catch treasures while avoiding bombs by moving the lower extremities, with a progressive duration of 25–45 min. Adherence to the exercise program was measured as a percentage (number of sessions attended/number of sessions offered). All assessments and interventions were conducted between June and September 2021 at Hospital de Manises (Valencia, Spain). RESULTS 23 subjects were included in the study (median age 70, 5 years; 11 males, 0/23 robust, 8/23 pre-frail and 15/23 frail). A chi-square value of 4329 (P = 0.05) showed a significant change in the frail phenotype of the participants after completing the exercise intervention. 17/23 of the participants ended the exercise program as pre-frail (9 participants changed from frail to pre-frail), and non-worsening in the frail phenotype of the participants was reported. The mean adherence to the exercise program throughout the study was 40%. CONCLUSION This study shows that an intradialytic exercise program consisting of a nonimmersive virtual reality video game adapted to the dialysis session can be useful to mitigate and manage frailty in the hemodialysis population.

Stress Level Estimation Based on Physiological Signals for Virtual Reality Applications

Virtual Reality (VR) video games have become popular in recent years with the emergence of a wide variety of enhanced VR hardware systems. Typically, current VR video games incorporate high-quality auditory and video feedback along with vibro-tactile cues to provide an immersive experience. However, the ongoing VR hardware and software do not consider the state of the user to determine whether the video game is generating an enjoyable experience, or if it has become a stressing or boring experience. This work provides an assessment of stress level estimation from features extracted from Electrocardiography (ECG), Electrodermal Activity (EDA), and Electromyography (EMG) signals of users while playing a VR video game with different difficulty levels. Statistical differences were found between the rest and gaming stages for several extracted features. Regardless of the fact that no significant statistical differences between the three levels of difficulty were found by analyzing the EDA and ECG features, an 83.1&#x0025; accuracy was obtained for the classification between the three levels with a KNN model. For the EMG signal, the obtained accuracy ranged between 99&#x0025; and 100&#x0025; for the distinction between a difficult level 1 and rest stage for all models. When all features from the ECG, EDA and EMG signals were used, an accuracy of 99&#x0025; was obtained for the differentiation between the three difficulty levels and a resting stage. The presented work results may serve as a reference for future work regarding feature extraction and game difficulty adaptation for user experience enhancement.

Rehabilitation of visual functions in adult amblyopic patients with a virtual reality videogame: a case series

Amblyopia or lazy eye is a dysfunction of the visual system that appears during childhood and traditionally has been considered untreatable in adults. Its main consequences are the loss of visual acuity and contrast sensitivity of the amblyopic eye and binocular vision impairments. During the last years videogames have been used as a therapeutic tool for amblyopia with the inconclusive results. The present work has assessed the effectiveness of a virtual reality videogame (AmbliOK®) in the neurorehabilitation of four adult clinical cases with anisometropic amblyopia. Visual acuity, contrast sensitivity, stereopsis and interocular suppression were assessed before, during, immediately after, one month and one year (in one patient) after the training. The intervention was conducted along four weeks (10 h) and yielded the variable results. In general, all patients showed an improvement in visual functions although not all ameliorated in the same way. Visual acuity measures improved in all patients, falling outside the amblyopia criterion at the end of the treatment. However, the improvement was not maintained one month later in two patients. Contrast sensitivity progressively improved for the amblyopic and the fellow eyes with all patients showing better results one month after the treatment. The patient assessed one year after still showed better results than in the baseline. Patients showing bad stereopsis in the baseline reached a performance considered normal one month and even one year after the treatment. The effectiveness of the treatment seems to be related to the characteristics of patients.