Eye Recovery Automation for Post Injury Dysfunction (iRAPID) (iRAPID)
Eye Recovery Automation for Post Injury Dysfunction
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Estimated)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Contact
Study Contact
- Name: Chang Yaramothu, PhD
- Phone Number: 9736424844
- Email: cy53@njit.edu
Study Locations
-
-
New Mexico
-
Albuquerque, New Mexico, United States, 87108
- Recruiting
- New Mexico VA Health Care System
-
Contact:
- Kelli Ober
- Email: kelli.ober@va.gov
-
Contact:
- Tiana Maple
- Email: tiana.maple@va.gov
-
Principal Investigator:
- Billie C Pack, OD
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
Accepts Healthy Volunteers
Description
Mild Traumatic Brain Injury (mTBI) Cohort Inclusion Criteria:
- are aged 18 - 40;
- have suffered a mTBI according to VA/Department of Defense (DoD) criteria with documented evidence of alteration of consciousness (AOC) < 24 hours or loss of consciousness (LOC) less than 30 minutes;
- were injured between 1 month and 15 years ago;
- received a Glasgow coma scale (GCS) score of between 13 and 15 upon emergency department (ED) admission, if available;
- experienced less than 24 hours of post-traumatic amnesia (PTA), if any;
- have ongoing post-concussive symptoms as evidenced by a score of 18 or greater or a score of 2 or greater on question 6 (vision problems, blurring, trouble seeing) on the Neurobehavioral Symptom Inventory (NSI);
- have ongoing vision-related symptoms as evidenced by a score of 31 or higher on the Brain Injury Vision Symptom Survey (BIVSS);
- have PTCI as evidenced by obtaining a score of 21 or higher on the convergence insufficiency symptom survey (CISS), a specific measure of convergence insufficiency;
- are fluent in English; and
- have been on stable doses of any vision-altering medications for the past 2 months.
- Stereopsis of 500 sec arc using Randot Stereo Test.
- Exophoria at near 4 prism-diopter (PD) or greater than magnitude at distance
- Near point of convergence (NPC) > 5 cm
- Convergence amplitude at near < 15PD break or the Sheard criterion not met
Control Inclusion Criteria:
- are aged 18 - 40;
- CISS score of 20 or lower;
- near point of convergence (NPC) < 6cm; and
- positive fusional range >15 prism diopters.
- Stereopsis of 500 sec arc using Randot Stereo Test.
Exclusion Criteria:
- prior history of other neurological diseases, so as to reduce the risk of confounding effects on vision;
- history of psychosis, as there are known visual performance findings associated with psychosis;
- history of current or recent (within two years) substance/alcohol dependence, to reduce confounding effects on visual function
- recent medical hospitalization (within three weeks), to reduce risk of rehospitalization during the study;
- any condition that would prevent the participant from completing the protocol;
- appointment of a legal representative, to avoid coercion of a vulnerable population;
- any ongoing litigation related to TBI, to prevent interference with legal proceedings;
- membership in an identified vulnerable population, including minors and prisoners, so as to prevent coercion.
- Previous vergence therapy, orthoptics, home-based therapy, etc.
- Amblyopia or constant strabismus or strabismus surgery.
- High refractive error: Myopia ≥ 6.0PD sphere; Hyperopia ≥ 5.0PD sphere; Astigmatism ≥ 4.0PD; Anisometropia >1.5PD difference between eyes; Prior refractive surgery.
- Manifest or latent nystagmus evident clinically.
- Systemic diseases that affect accommodation, vergence, or ocular motility (i.e. multiple sclerosis, Graves' thyroid disease, myasthenia gravis, diabetes, chemotherapy or Parkinson disease).
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Triple
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: BNC Active
Binocularly normal controls receiving active therapy
|
VERVE utilizes a virtual reality (VR) headset with integrated eye-tracking where the patient makes specific vergence eye movements by playing a VR game controlled by eye movements.
Participants will be making convergence and divergence eye movements as steps and ramps.
Other Names:
|
|
Sham Comparator: BNC Sham
Binocularly normal controls receiving sham therapy
|
VERVE game without changes in eye movement demands.
Maximizing gameplay with no intervention.
|
|
Experimental: PTCI Active
Post-traumatic Convergence Insufficiency participants receiving active therapy
|
VERVE utilizes a virtual reality (VR) headset with integrated eye-tracking where the patient makes specific vergence eye movements by playing a VR game controlled by eye movements.
Participants will be making convergence and divergence eye movements as steps and ramps.
Other Names:
|
|
Sham Comparator: PTCI Sham
Post-traumatic Convergence Insufficiency participants receiving sham therapy
|
VERVE game without changes in eye movement demands.
Maximizing gameplay with no intervention.
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Near Point of Convergence
Time Frame: Baseline (preintervention), within 1 week after session 4 of intervention, within 1 week after session 8 of intervention, within 1 week after session 12 of intervention, and within 1 week after intervention
|
Normal range is < 6 cm
|
Baseline (preintervention), within 1 week after session 4 of intervention, within 1 week after session 8 of intervention, within 1 week after session 12 of intervention, and within 1 week after intervention
|
|
Positive Fusional Vergence
Time Frame: Baseline (preintervention), within 1 week after session 4 of intervention, within 1 week after session 8 of intervention, within 1 week after session 12 of intervention, and within 1 week after intervention
|
Normal range is >15 Prism Diopters
|
Baseline (preintervention), within 1 week after session 4 of intervention, within 1 week after session 8 of intervention, within 1 week after session 12 of intervention, and within 1 week after intervention
|
|
Objective Eye-Tracking Measures (Peak Velocity)
Time Frame: Baseline (preintervention) and within 1 week after intervention
|
measured in degress/second
|
Baseline (preintervention) and within 1 week after intervention
|
|
Objective Eye-Tracking Measures (Response Accuracy)
Time Frame: Baseline (preintervention) and within 1 week after intervention
|
measured as a percentage of response divided by target amplitude
|
Baseline (preintervention) and within 1 week after intervention
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Brain Injury Vision Symptom Survey
Time Frame: Baseline (preintervention) and within 1 week after intervention
|
Normal range is < 31 for adults
|
Baseline (preintervention) and within 1 week after intervention
|
|
Neurobehavioral Symptom Inventory
Time Frame: Baseline (preintervention) and within 1 week after intervention
|
Normal range is < 18 for adults
|
Baseline (preintervention) and within 1 week after intervention
|
|
Convergence Insufficiency Symptom Survey
Time Frame: Baseline (preintervention) and within 1 week after intervention
|
Normal range is < 21 for adults
|
Baseline (preintervention) and within 1 week after intervention
|
Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Investigators
Investigators
- Principal Investigator: Chang Yaramothu, PhD, New Jersey Institute of Technology
Study record dates
Study Major Dates
Study Start (Actual)
Study Start
Primary Completion (Estimated)
Primary Completion
Study Completion (Estimated)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Actual)
First Posted
Study Record Updates
Last Update Posted (Actual)
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
Additional Relevant MeSH Terms
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Wounds and Injuries
- Eye Diseases
- Craniocerebral Trauma
- Trauma, Nervous System
- Head Injuries, Closed
- Wounds, Nonpenetrating
- Cranial Nerve Diseases
- Brain Injuries
- Brain Injuries, Traumatic
- Brain Concussion
- Ocular Motility Disorders
Other Study ID Numbers
Other Study ID Numbers
- SQRL001
- W81XWH22C0146 (Other Grant/Funding Number: U.S. Army Medical Research and Development Command)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
IPD Sharing Time Frame
IPD Sharing Supporting Information Type
- STUDY_PROTOCOL
- SAP
- ICF
- CSR
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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