- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04310241
Visual Function Abnormalities in Strabismus and Amblyopia and Response to Therapy
Oculomotor Disorders: Experimental and Clinical Study
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
To examine the response of therapy on visual functions in amblyopic and strabismic participants.
The following visual functions will be measured prior to treatment. Eye movements, contrast sensitivity, grating acuity, visual acuity, vernier acuity, binocular visual functions, reading and visual scanning will be measured. The testing will comprise of one or more of the above paradigms depending on participant's cooperation and understanding as majority of the study participants will be children. The above measurements will be repeated during amblyopia therapy ( which comprises of glasses, patching and/or atropine eye drops) and at the completion of treatment. For participants with strabismus requiring strabismus surgery the measurements will be repeated after strabismus surgery.
Study Type
Enrollment (Anticipated)
Contacts and Locations
Study Contact
- Name: Kimberly Baynes, MSN
- Phone Number: 216-444-2566
- Email: baynesk@ccf.org
Study Locations
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-
Ohio
-
Cleveland, Ohio, United States, 44195
- Recruiting
- Cleveland Clinic
-
Contact:
- Fatema Ghasia, MD
- Phone Number: 216-318-7809
-
Contact:
- Kimberly Baynes
- Phone Number: 2164442566
- Email: baynesk@ccf.org
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- History of amblyopia or presence of amblyogenic risk factors.
Exclusion Criteria:
- History of neurologic disorders
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Control subjects
Subjects who state they have no eye or neurologic problems or disease other than perhaps wearing glasses or contact lenses and upon review of medical history.
|
|
Amblyopia
Clinical diagnosis of amblyopia
|
Patching, glasses and strabismus surgery are commonly employed measures in treatment of amblyopia and strabismus.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Visual Functions
Time Frame: 0-3 years depending on duration of treatment
|
contrast sensitivity
|
0-3 years depending on duration of treatment
|
Visual Functions
Time Frame: 0-3 years depending on duration of treatment
|
visual acuity
|
0-3 years depending on duration of treatment
|
Visual functions
Time Frame: 0-3 years depending on duration of treatment
|
vernier acuity
|
0-3 years depending on duration of treatment
|
Visual functions
Time Frame: 0-3 years depending on duration of treatment
|
grating acuity
|
0-3 years depending on duration of treatment
|
Visual functions
Time Frame: 0-3 years depending on duration of treatment
|
binocular functions- stereopsis, inter-ocular functions
|
0-3 years depending on duration of treatment
|
Visual functions
Time Frame: 0-3 years depending on duration of treatment
|
eye movement measurements
|
0-3 years depending on duration of treatment
|
Visual functions
Time Frame: 0-3 years depending on duration of treatment
|
reading- reading speeds, eye movement measurements
|
0-3 years depending on duration of treatment
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Fatema Ghasia, MD, The Cleveland Clinic
Publications and helpful links
General Publications
- Chatzistefanou KI, Theodossiadis GP, Damanakis AG, Ladas ID, Moschos MN, Chimonidou E. Contrast sensitivity in amblyopia: the fellow eye of untreated and successfully treated amblyopes. J AAPOS. 2005 Oct;9(5):468-74. doi: 10.1016/j.jaapos.2005.05.002.
- Shaikh AG, Otero-Millan J, Kumar P, Ghasia FF. Abnormal Fixational Eye Movements in Amblyopia. PLoS One. 2016 Mar 1;11(3):e0149953. doi: 10.1371/journal.pone.0149953. eCollection 2016.
- Ghasia FF, Otero-Millan J, Shaikh AG. Abnormal fixational eye movements in strabismus. Br J Ophthalmol. 2018 Feb;102(2):253-259. doi: 10.1136/bjophthalmol-2017-310346. Epub 2017 Jul 11.
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ANTICIPATED)
Study Completion (ANTICIPATED)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 12-915
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
IPD Sharing Time Frame
IPD Sharing Access Criteria
IPD Sharing Supporting Information Type
- SAP
- ANALYTIC_CODE
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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