Komori
Other Disclosures4890Tsubota Laboratory IncorporatedPharmaceuticals

Time Spent Viewing Things Up Close May Affect the Quality of Children's Vision

A research paper co-authored by our president examining the relationship between the amount of time children spend viewing things up close and visual blur was published in Scientific Reports. The study suggested an association, varying by period, between time spent on near-work activities such as using smartphones, using computers, and reading or studying, and visual blur.

Worth reading
50Recurring
Scored from 5 of 6 sections
Direction
Mixed performance
Direction inferred from the company’s description.
Scale
—
Displayed only when the document provides numerical figures.
Wording
Avoiding a definitive answer
How definitive the wording is.

Announced details

Applicable field (uses covered by this announcement)

Children's visual function, myopia, ophthalmic research

Launch date30 March 2026 (the date the paper's publication was announced; the publication date is not specified in the paper)
What the company reported numerically
Quantitative Effects

Time spent playing outdoors decreased from 100.5 minutes per day to 66.2 minutes per day. The association between near-work time and visual blur was indicated as a trend by period, but the effect size was Not disclosed.

Relationship between the counterparty and the company
Tsubota Laboratory Incorporated4890
Relationship with the Company

Our representative director and president participated as a co-author of the paper.

CounterpartyScientific Reports (publication)

International academic journal. Other details: Not disclosed

Impact on Business Performance

The impact on business performance is Not disclosed

The company does not address Contract Value / Offering price.

Source (materials cited by the company)

Paper published in Scientific Reports, “Near work affects ocular higher order aberrations in children -a longitudinal study before and after COVID-19 - The Tokyo Myopia Study”

Announced details
ItemDetails
CounterpartyScientific Reports (publication)
Counterparty overviewInternational academic journal. Other details: Not disclosed
Relationship with the CompanyOur representative director and president participated as a co-author of the paper.
Launch date30 March 2026 (the date the paper's publication was announced; the publication date is not specified in the paper)
Applicable areaChildren's visual function, myopia, ophthalmic research
Quantitative EffectsTime spent playing outdoors decreased from 100.5 minutes per day to 66.2 minutes per day. The association between near-work time and visual blur was indicated as a trend by period, but the effect size was Not disclosed.
Impact on Business PerformanceThe impact on business performance is Not disclosed
SourcePaper published in Scientific Reports, “Near work affects ocular higher order aberrations in children -a longitudinal study before and after COVID-19 - The Tokyo Myopia Study”
Items this document does not state (10)
Names of Products / Services CoveredContract ValueOffering priceContract DateAward/certification nameAwarding / certifying bodyRegistration number and expiry dateLocationLocation scaleUsage history

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

To publish research findings aimed at protecting children's eye health and connect them to research and product development focused on maintaining and improving visual function in the future.

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Corrections happenIf the company reissues this disclosure, the page is rebuilt from the corrected version and the revision number moves up.
Time Spent Viewing Things Up Close May Affect the Quality of Children's Vision | Tsubota Laboratory Incorporated (4890) timely disclosure | Komori