I-BiT - Evaluation of a Novel Binocular Treatment System (I-BiTTM) in Children With Amblyopia (I-BiT)
Evaluation and Development of a Novel Binocular Treatment (I-BiTTM) System Using Video Clips and Interactive Games to Improve Vision in Children With Amblyopia ('Lazy Eye').
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 2
Contacts and Locations
Study Locations
-
-
Cambridgeshire
-
Cambridge, Cambridgeshire, United Kingdom, CB2 0QQ
- Cambridge University Hospitals NHS Trust
-
-
Nottinghamshire
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Nottingham, Nottinghamshire, United Kingdom, NG7 2UH
- Nottingham University Hospitals NHS Trust
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion criteria:
- Diagnosis of Anisometropic, Strabismic or Mixed Amblyopia as made by an Orthoptist
- Male or Female
- Aged 4 - 8 years inclusive.
- Participant's parent or guardian is willing and able to give informed consent for participation in the study
Exclusion criteria:
- Stimulus deprivation amblyopia.
- Organic lesions of the eye preventing the establishment of good vision (e.g. media opacities, abnormalities in the fundus or optic nerve).
- Lesions of the brain preventing the establishment of good vision (e.g. cortical visual impairment).
- Patients diagnosed with Photosensitive Epilepsy
- Patients diagnosed with or suspected of having Conjunctivitis
- Loss of suppression at filter 4 or less as measured with the Sbisa Bar
- Establishment of normal vision by refractive adaptation (wearing glasses after presentation).
- Inability to comply with the follow up visits required
- Refusal to accept randomisation
- Have participated in a previous study examining I-BiT treatment
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: I-BiTTM game
30 minutes intervention weekly for 6 weeks.
|
30 minutes intervention weekly for 6 weeks.
|
|
Active Comparator: Non-I-BiTTM game
30 minutes intervention weekly for 6 weeks.
|
30 minutes intervention weekly for 6 weeks.
|
|
Experimental: I-BiTTM DVD
30 minutes intervention weekly for 6 weeks.
|
30 minutes intervention weekly for 6 weeks.
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Change from baseline in visual acuity
Time Frame: 6 weeks
|
6 weeks
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Change from baseline in visual acuity
Time Frame: 10 weeks
|
10 weeks
|
Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Investigators
Investigators
- Principal Investigator: Alexander Foss, BA BMBCh MRCP MRCOphth FRC, CONSULTANT OPHTHALMOLOGIST
Publications and helpful links
General Publications
- Tailor V, Ludden S, Bossi M, Bunce C, Greenwood JA, Dahlmann-Noor A. Binocular versus standard occlusion or blurring treatment for unilateral amblyopia in children aged three to eight years. Cochrane Database Syst Rev. 2022 Feb 7;2(2):CD011347. doi: 10.1002/14651858.CD011347.pub3.
- Herbison N, MacKeith D, Vivian A, Purdy J, Fakis A, Ash IM, Cobb SV, Eastgate RM, Haworth SM, Gregson RM, Foss AJ. Randomised controlled trial of video clips and interactive games to improve vision in children with amblyopia using the I-BiT system. Br J Ophthalmol. 2016 Nov;100(11):1511-1516. doi: 10.1136/bjophthalmol-2015-307798. Epub 2016 Mar 7.
- Foss AJ, Gregson RM, MacKeith D, Herbison N, Ash IM, Cobb SV, Eastgate RM, Hepburn T, Vivian A, Moore D, Haworth SM; I-BiT Steering group. Evaluation and development of a novel binocular treatment (I-BiT) system using video clips and interactive games to improve vision in children with amblyopia ('lazy eye'): study protocol for a randomised controlled trial. Trials. 2013 May 20;14:145. doi: 10.1186/1745-6215-14-145.
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- 10OY006
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