Effect of Colour Temperature of Reading Lamp on Refractive Error Development

NCT ID: NCT05733182

Last Updated: 2024-03-01

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

798 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-07-01

Study Completion Date

2027-06-30

Brief Summary

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This is a 12-month longitudinal randomized controlled trial aiming to evaluate the effect of colour temperature of reading lamp on refractive error development.

Detailed Description

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Myopia has reached epidemic in the world, especially in East Asia. The proportion of myopic population increases drastically during schoolage. Lack of light exposure has been suggested to be a risk for myopia development, in which additional reading lamp may alleviate this condition. However, the effect of colour temperature of the reading lamp is unknown on childhood refractive error development. In this study, investigators will randomly allocate school-aged children into groups, who will receive reading lamps of different colour temperatures for their daily use. The participants' refractive error and axial length will be evaluated.

Conditions

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Refractive Errors

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Randomized clinical trial
Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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3000K

Participants will receive a reading lamp of colour temperature 3000K.

Group Type ACTIVE_COMPARATOR

3000K Reading lamp

Intervention Type DEVICE

Reading lamp with custom-made circuitry to emit light of 3000K colour temperature

4500K

Participants will receive a reading lamp of colour temperature 4500K.

Group Type ACTIVE_COMPARATOR

4500K Reading lamp

Intervention Type DEVICE

Reading lamp with custom-made circuitry to emit light of 4500K colour temperature

6500K

Participants will receive a reading lamp of colour temperature 6500K.

Group Type ACTIVE_COMPARATOR

6500K Reading lamp

Intervention Type DEVICE

Reading lamp with custom-made circuitry to emit light of 6500K colour temperature

Interventions

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3000K Reading lamp

Reading lamp with custom-made circuitry to emit light of 3000K colour temperature

Intervention Type DEVICE

4500K Reading lamp

Reading lamp with custom-made circuitry to emit light of 4500K colour temperature

Intervention Type DEVICE

6500K Reading lamp

Reading lamp with custom-made circuitry to emit light of 6500K colour temperature

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* aged between 4 and 18 years

Exclusion Criteria

* have received myopia control intervention
Minimum Eligible Age

4 Years

Maximum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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The Hong Kong Polytechnic University

OTHER

Sponsor Role lead

Responsible Party

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Dr CHOI Kai Yip

Research Assistant Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Optometry Research Clinic

Hong Kong, Kowloon, Hong Kong

Site Status RECRUITING

Countries

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Hong Kong

Central Contacts

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Kai Yip Choi, PhD

Role: CONTACT

(852)34002934

Facility Contacts

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Kai Yip Choi, PhD

Role: primary

(852)34002934

Other Identifiers

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00000

Identifier Type: -

Identifier Source: org_study_id

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