Electronic Recording of Compliance With Occlusion Therapy for Amblyopia

Sponsor
Erasmus Medical Center (Other)
Overall Status
Completed
CT.gov ID
NCT00131729
Collaborator
ZonMw: The Netherlands Organisation for Health Research and Development (Other), Albert von Metzler Foundation (Other), Augenstern Association, Germany (Other), Edith von Heyden Foundation, Germany (Other)
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Study Details

Study Description

Brief Summary

The purpose of this study was to determine whether compliance with occlusion therapy for amblyopia could be improved and, secondly, if risk factors for non-compliance could be identified.

Condition or Disease Intervention/Treatment Phase
  • Behavioral: Educational programme
Phase 3

Detailed Description

Non-compliance is a limiting factor for success of occlusion therapy for amblyopia (lazy eye) in childhood. It is responsible for approximately 1% of the adult population being unable to read with the amblyopic eye. The researchers used electronic monitoring of compliance to investigate predictors and a remedy for non-compliance.

Methods: In a prospective randomised controlled trial, compliance was measured for one week every three months during 30 months in newly diagnosed amblyopic children in The Hague, Frankfurt and Leicester. The family's social-economic and ethnic background was assessed through a questionnaire. Children were randomised to receive either an educational cartoon story explaining, without text, the rationale for treatment to the child with reward stickers and an information sheet, or a picture to colour. All received standard orthoptic care by a treating orthoptist, who was unaware of the randomisation. The electronic device and educational programme were distributed via home-visits by researchers. The primary outcome measure was percentage of compliance (realised/prescribed occlusion time). The secondary outcome measure was influence of social-economic, ethnic and clinical factors on compliance.

Study Design

Study Type:
Interventional
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Single
Primary Purpose:
Treatment
Official Title:
Electronic Recording of Compliance With Occlusion Therapy for Amblyopia: 1 Effects of Patient Education on Compliance 2 Predictors for Non-Compliance
Study Start Date :
Jul 1, 2001
Study Completion Date :
Dec 1, 2005

Outcome Measures

Primary Outcome Measures

  1. Percentage of compliance (realised/prescribed occlusion time) in the intervention and control group []

Secondary Outcome Measures

  1. Secondary outcome measure was influence of social-economic, ethnic and clinical factors on compliance []

Eligibility Criteria

Criteria

Ages Eligible for Study:
0 Years and Older
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • All newly diagnosed amblyopic children with an inter-ocular difference in visual acuity of at least 0.2 logMAR, strabismus and/or anisometropia or deprivation (e.g. cataract)
Exclusion Criteria:
  • Previous treatment for amblyopia

  • Neurological disorder

  • Medication

  • Other eye disorder

  • Decreased visual acuity caused by brain damage or trauma

Contacts and Locations

Locations

Site City State Country Postal Code
1 Universitäts-Augenklinik Frankfurt Frankfurt am Main Germany 60590
2 Leicester Royal Infirmary; Dept. of Ophthalmology Leicester United Kingdom LE2 7LX

Sponsors and Collaborators

  • Erasmus Medical Center
  • ZonMw: The Netherlands Organisation for Health Research and Development
  • Albert von Metzler Foundation
  • Augenstern Association, Germany
  • Edith von Heyden Foundation, Germany

Investigators

  • Study Chair: Huibert J Simonsz, MD, PhD, ErasmusMC, Department of Ophthalmology

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
, ,
ClinicalTrials.gov Identifier:
NCT00131729
Other Study ID Numbers:
  • 2300.0020
First Posted:
Aug 19, 2005
Last Update Posted:
Mar 20, 2006
Last Verified:
Mar 1, 2006
Keywords provided by , ,
Additional relevant MeSH terms:

Study Results

No Results Posted as of Mar 20, 2006