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NCT Number: NCT06623760

Study on the Impact of Desk and Chair Adaptation Intervention on the Occurrence and Development of Myopia in Primary School Students

This study is a randomized controlled trial of a desk and chair adaptation intervention involving primary school students and their parents or primary caregivers. We compared the myopia status of students in the intervention and control groups before and after the intervention to confirm the effect of the desk and chair adaptation intervention on the development of myopia in students.

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Key information

Conditions

Axial Length, Eye Eye Diseases Myopia Myopia Progression Refractive Errors

Age range

6 year–13 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

About this study

In this study, two pilot schools in Anhui Province were selected , and all students were examined by ophthalmologists, and their heights and the heights of their desks and chairs were measured in order to investigate the association between desk and chair adaptations and myopia. One of the elementary school was randomly selected for a one-year desk and chair adaptation intervention to compare the occurrence of myopia and axial growth of the students before and after the intervention in the two schools.

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Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Students and their families were informed and voluntarily participated in the study, with parents signing the informed consent form.
  • Able to cooperate with eye examinations and questionnaires.

Exclusion criteria

  • Communication barriers, unable to cooperate.
  • Strabismus, amblyopia, or any other ocular or systemic diseases that may affect refractive development.
  • Children currently using orthokeratology lenses or rigid contact lenses.
  • Using other interventions (such as acupuncture, massage, medication, ear acupuncture, etc.) to control myopia, apart from school eye exercises.

Treatment and study plan

Desk and chair adaptation interventions

Device

Adjustment of the height of tables and chairs to the height of each pupil in accordance with Functional sizes and technical requirements of chairs and tables for educational institutions (GB/T 3976--2014）, with a duration of intervention of one year。

Primary outcomes

  1. The changes in axial length (AL) and spherical equivalent (SE) compared to baseline after one year of intervention

    Time frame: at baseline, , and at the 12th month of the intervention.

    The ocular physiological parameters, including axial length (AL), horizontal and vertical corneal curvature (K1 and K2), were measured using an optical biometer (model IOL Master 700). Each eye was measured three times, and if the difference between any two measurements exceeded 0.05 mm, the process was repeated until the difference was less than this value.An objective examination method was used under non-cycloplegic conditions (i.e., without pupil dilation), utilizing a tabletop automatic refractometer (ISO 10342-2010 Ophthalmic Instruments - Refractometers). The spherical equivalent (SE) was calculated as follows: SE = sphere power + 1/2 cylinder power.

Secondary outcomes

  1. The incidence of myopia.

    Time frame: at baseline, and at the 12th month of the intervention.

    The incidence of myopia is defined as the occurrence of myopia in children who were not myopic at baseline.

Study contacts

Contact information is provided by the study sponsor or research team.

亚新 张

CONTACT

[email protected]

18756589920

韶君 许

CONTACT

[email protected]

18055151289

Sponsors and collaborators

Lead sponsor

Fangbiao Tao

Other

Registry information

Official study title

Intervention Study：Study on the Impact of Desk and Chair Adaptation Intervention on the Occurrence and Development of Myopia in Primary School Students

Important dates

Study start
2024
Primary completion
2025
Study completion
2025
First posted
Oct 2, 2024
Registry last updated
Oct 2, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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