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Assessment of Bifocal and Prismatic Bifocal Spectacles for Myopia Control in Children

NCT00787579 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 135

Last updated 2008-11-07

No results posted yet for this study

Summary

1. To determine if the effect of near-addition lenses (bifocals) is more prominent for children with high myopia progression.
2. To study how different subject characteristics such as age, gender, baseline degree of myopia, baseline near phoria and baseline lag of accommodation affect the efficacy of bifocal lens wear in myopic children.
3. To investigate the effect of incorporating near base-in prisms along with the near-addition lenses (prismatic bifocals) on myopia progression in myopic children.

Conditions

  • Myopia

Interventions

DEVICE

Bifocal spectacles

+1.50D bifocal spectacles

DEVICE

Prismatic bifocal spectacles

+1.50D bifocal spectacles combined with 3Δ base-in prisms

Sponsors & Collaborators

  • Queensland University of Technology

    collaborator OTHER

  • Essilor International

    lead INDUSTRY

Principal Investigators

  • Desmond Cheng, OD, MSc · Queensland University of Technology

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
8 Years
Max Age
13 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2003-04-30
Primary Completion
2008-04-30

Countries

  • Canada

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00787579 on ClinicalTrials.gov