Efficacy Study of Different Lens Treatments on Chinese Adolescent Myopia

Randomized Controlled Trial of Different Lens Treatments on Chinese Adolescent Myopia

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02001415

Acronym

DLTCAM

Enrollment

120

Registered

2013-12-04

Start date

2013-11-30

Completion date

2016-09-30

Last updated

2016-04-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Progressive Myopia

Keywords

Progressive Myopia, Contact Lenses, Spectacles

Brief summary

The purpose of this study is to determine the efficacy of different lens treatments (normal spectacle lens, ortho-K, & Myovision) on myopia control in Chinese adolescent patients.

Detailed description

Different lens treatments include normal spectacle lens, orthokeratology, and Myovision (a specially designed spectacle lens commercially available with peripheral defocus controlled as relative myopia). This study is to evaluate the efficacy of these three methods in controlling myopia progression. Until now, there is no sufficient clinical evidences to compare different lens treatments.

Interventions

OTHERSpectacles

Normal spectacle lenses were used to correct myopia as the control group.

OTHERMyovision

Myovision is a kind of specially designed spectacle glasses that could control the peripheral refraction of myopia patients. It is commercially available.

OTHEROrthokeratology

Orthokeratology lenses.

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

10 Years to 15 Years

Healthy volunteers

Inclusion criteria

* Adolescent myopia patients * Myopic refraction between -1.00D and -4.50D * Astigmatism equal or less than -1.50D * Normal break up time of tear film (BUT \> 10s)

Exclusion criteria

* Existence of any ocular diseases except ametropia * Hyperopia * Severe dry eye

Design outcomes

Primary

Measure	Time frame	Description
Change of Ocular Axial Length	Baseline, 6 months, 12 months	Ocular axial length (AL), which increases with age, will be measured 3 times by an IOLMaster. The first AL examination was considered as the baseline data, and will be repeated 6 and 12 months later.

Secondary

Measure	Time frame	Description
Change of Spherical Equivalent Refraction	Baseline, 6 months, 12 months	Spherical Equivalent Refraction (SER), which usually changes from time to time, will be measured 3 times by an open field auto-refractometer. The first SER examination was considered as the baseline data, and will be repeated 6 and 12 months later.

Countries

China

Contacts

Primary ContactKai Wang, Dr.

medisaker@gmail.com+86-13810097881

Backup ContactXi Rong Wu, Dr.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026