Tomoya Handa
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View article: Quantitative analysis of ocular deviation under eye occlusion: a descriptive study using the ORTe EYENAC eye-tracking system
Quantitative analysis of ocular deviation under eye occlusion: a descriptive study using the ORTe EYENAC eye-tracking system Open
Background The cover–uncover test is traditionally used in the qualitative assessment of heterotropia and heterophoria, while the alternate prism cover test (APCT) quantifies ocular deviations. However, the APCT is time-consuming and prone…
View article: Effects of Target Clarity on Monocular Blur Suppression: A Video Simulation of Simultaneous Vision Multifocal Lens Correction
Effects of Target Clarity on Monocular Blur Suppression: A Video Simulation of Simultaneous Vision Multifocal Lens Correction Open
Residual refractive error appears to impair the function of monocular blur suppression, aggravating the perception of ghost images. Full refractive correction is therefore essential for effectively suppressing these unwanted visual artifac…
View article: Comparison of the Saccadic Eye Movement Ability of Female Professional Basketball Players and Non-Athletes
Comparison of the Saccadic Eye Movement Ability of Female Professional Basketball Players and Non-Athletes Open
Athletes, particularly ball game players, benefit from focusing on fast-moving visual targets. In this study, we hypothesized that athletes, specifically professional basketball players, exhibit more accurate saccadic eye movements compare…
View article: Wavelength Characteristics and Visual Function of Photochromic Contact Lenses in Indoor and Outdoor Conditions
Wavelength Characteristics and Visual Function of Photochromic Contact Lenses in Indoor and Outdoor Conditions Open
Purpose: To examine the wavelength characteristics of photochromic contact lenses (CL) and evaluate the impact of tinting on visual function in indoor, outdoor, and glare environments. Methods: A total of 33 healthy individuals with refrac…
View article: Development of a New Eye Movement Measurement Device Using Eye-Tracking Analysis Technology
Development of a New Eye Movement Measurement Device Using Eye-Tracking Analysis Technology Open
Smooth pursuit eye movements and saccadic eye movements are vital for precise vision. Therefore, tests for eye movement are important for assessing nervous or muscular diseases. However, objective measurements are not frequently performed …
View article: Response to comments on: Comparison of the effectiveness of amblyopia treatment with eye-patch and binocular Occlu-tab for the same treatment duration
Response to comments on: Comparison of the effectiveness of amblyopia treatment with eye-patch and binocular Occlu-tab for the same treatment duration Open
We thank you for the comments and suggestions on our paper[1] entitled "Comparison of the effectiveness of amblyopia treatment with eye-patch and binocular Occlu-tab for the same treatment duration." In most cases, vision loss due to funct…
View article: High visibility colored fabrics for normal trichromats and individuals with color vision defects in a sunset-simulated environment
High visibility colored fabrics for normal trichromats and individuals with color vision defects in a sunset-simulated environment Open
This study aimed to investigate the visibility of colors in congenitally color vision defect people using general and fluorescent colors in an environment simulating sunset to examine the standards for high-visibility safety clothing for g…
View article: Comparison of Amblyopia Treatment Effect with Dichoptic Method Using Polarizing Film and Occlusion Therapy Using an Eye Patch
Comparison of Amblyopia Treatment Effect with Dichoptic Method Using Polarizing Film and Occlusion Therapy Using an Eye Patch Open
We developed a novel, low-cost, easily administered method that uses a polarizing film to enable dichoptic treatment for amblyopia. In this study, we compared its effects with occlusion therapy using an eye patch. Fifty-eight patients (age…
View article: Refractive and visual function changes in twilight conditions
Refractive and visual function changes in twilight conditions Open
Purpose We investigated the effect of luminance on refraction and visual function under twilight conditions. Methods Twenty young adults (mean age 20.5 ± 0.5 years) without ocular diseases and 20 eyes were included in the study. Subjective…
View article: Gamification Design on Invisible Display for Amblyopia Treatment in Indian Children: Preliminary Design Intervention Study (Preprint)
Gamification Design on Invisible Display for Amblyopia Treatment in Indian Children: Preliminary Design Intervention Study (Preprint) Open
BACKGROUND India has the highest number of patients with amblyopia worldwide. For this study, we have developed a novel gaming tablet for amblyopia treatment, called Occlu-tab, which can present visual stimuli to only one eye while both e…
View article: Intrasession and Intersession Variabilities of Intraocular Pressure Measured by Noncontact Tonometer in Normal Volunteers
Intrasession and Intersession Variabilities of Intraocular Pressure Measured by Noncontact Tonometer in Normal Volunteers Open
The IOP on day 1 tended to be high in the first and second measurements. The IOP measured on days 2-4 did not fluctuate during the sequence of measurements. The cardiac rate measured at the same time as the IOP was high only on the first d…
View article: Evaluation of a novel dichoptic training method using polarising film for treatment of amblyopia
Evaluation of a novel dichoptic training method using polarising film for treatment of amblyopia Open
We have developed a new, low-cost, easily administered method that uses a polarising film to enable dichoptic training for amblyopia. In this study, we compared its effects with occlusion therapy using an eye patch. Fifty-eight patients (4…
View article: High Visibility Conditions in a Sunset Environment
High Visibility Conditions in a Sunset Environment Open
There is no standard for high-visibility safety clothing for general pedestrians, nor is it widely used. Therefore, this study investigated visibility in order to examine the standards for high-visibility safety clothing for general pedest…
View article: High Visibility Conditions in a Sunset Environment
High Visibility Conditions in a Sunset Environment Open
Purpose: There is no standard for high-visibility safety clothing for general pedestrians, nor is it widely used. Therefore, this study investigated visibility in order to examine the standards for high-visibility safety clothing for gener…
View article: Objective measurement of nine gaze-directions using an eye-tracking device
Objective measurement of nine gaze-directions using an eye-tracking device Open
Purpose: To investigate the usefulness and efficacy of a novel eye-tracking device that can objectively measure nine gaze-directions. Methods: We measured each of the nine gaze-directions subjectively, using a conventional Hess screen test…
View article: Improvement of Adherence with Occlu-Pad Therapy for Pediatric Patients with Amblyopia
Improvement of Adherence with Occlu-Pad Therapy for Pediatric Patients with Amblyopia Open
We aimed to examine visual acuity improvement effect and adherence in amblyopia training using tablet type vision training equipment (Occlu-pad). The subjects were 138 patients with amblyopia (average age of 5.5 ± 1.6 years old); their amb…
View article: Comparison between Amblyopia Treatment with Glasses Only and Combination of Glasses and Open-Type Binocular “Occlu-Pad” Device
Comparison between Amblyopia Treatment with Glasses Only and Combination of Glasses and Open-Type Binocular “Occlu-Pad” Device Open
We evaluated amblyopia treatment, comparing training with glasses only and training with glasses and the Occlu-pad, a binocular open-type amblyopia training device. Forty-six children ( years) diagnosed with anisometropic amblyopia, all we…
View article: The Effect of Ocular Dominance on Accommodation and Miosis under Binocular Open Viewing Conditions
The Effect of Ocular Dominance on Accommodation and Miosis under Binocular Open Viewing Conditions Open
Background/Aims: We investigated the relationship between ocular dominance and accommodation on the pupils of the dominant eye and the non-dominant eye under binocular open viewing conditions. Methods: Seventeen healthy young volunteers pa…
View article: Effects of Target Size and Test Distance on Stereoacuity
Effects of Target Size and Test Distance on Stereoacuity Open
Target size and test distance effects on stereoacuity were investigated in 24 subjects using a three-dimensional monitor. Examination 1: Target Size Effects . The test distance was 2.5 m for 0.1°, 0.2°, 0.5°, and 0.9° target sizes; crossed…