Trial of Myopia Prevention Using +3D Lenses

Sun Yat-sen University1,200 enrolled

Overview

The purpose of this study is to assess whether a short-term imposed myopic defocus is effective in preventing the development and progression of juvenile-onset myopia in Chinese children.

1. To determine if +3D lenses wearing for half an hour everyday prevents the development and progression of myopia in school children. 2. To identify ocular parameters and risk factors at baseline associated with development and progression of myopia.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

NONE

Enrollment

1,200

Conditions

Myopia

Interventions

+3D LensesDEVICE

wear +3D glasses for 30 minutes per day and engage in activities which require vision at more than 1m

Eligibility

Sex: ALL

Medical Language ↔ Plain English

Inclusion Criteria: * All children in the selected class are enrolled Exclusion Criteria: * Hyperopia \> +2.0 D * High myopia \> -6.0 D * Astigmatism\> 1.5 D * Anisometropia \> 1.5 D * Strabismus and amblyopia * Any ocular, systemic, or neurodevelopmental conditions that could influence refractive development * Chronic medication use that might affect myopia progression or visual acuity * Already receiving other treatment for progressing myopia

Outcomes

Primary Outcomes

Axial Length of eyes

Time frame: Annual

Secondary Outcomes

Autorefraction

Time frame: Annual

Data from ClinicalTrials.gov

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