Spectacles Lens in Concussed Kids

Study Overview
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Brief Summary
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We will be looking at 3 treatment arms in the form of different type of glasses to see if one is superior to helping kids have sustained a concussion and are symptomatic.

Detailed Description
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Recent studies have shown children who sustain a concussion are susceptible to having chronic symptoms (post-concussion syndrome). This chronicity can lead to delays in returning to learn and returning to play. Blurry vision, double vision, eye strain and eye tracking problems are some of the reported chronic symptoms that can affect patients' daily activities. Concussion awareness has increased recently and there is a surge of interest to better understand and treat the symptoms of post-concussion syndrome. Currently, ocular treatment for patients are often empirically determined. Common treatments are vision therapy and/or bifocal glasses. There has yet to be any standardization or prospective studies looking into treatment for these concussed patients with ocular symptoms and findings. The objective of this protocol is to compare three different types of glasses (typical prescription glasses for kids, typical glasses for kids with anti-glare coating, and progressive addition lenses with anti-glare coating) as treatment options for participants who are still symptomatic four weeks out from their concussion. The main outcome is the effectiveness of these three different options in reducing patients' symptoms and improving the participants' visual findings.

Official Title
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To Compare the Effectiveness of 3 Different Types of Lens and Lens Coating in Eliminating Symptoms for Children With Prolonged Visual Symptoms Due to a Concussion.

Conditions
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Concussion, Mild, Convergence Insufficiency, Accommodation; Insufficiency

Intervention / Treatment
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* Device: Glasses


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Sustained a concussion > 6 weeks < 16 weeks from date of initial visit Criteria for concussion: formally diagnosed by physician Minimum best corrected visual acuity: 20/25 in right and left eyes at distance and 20/30 both eyes at near Minimum Stereopsis: 500 global CISS score > 16 Refractive error at least + 0.50D sphere or cylinder Ability to clear > 0.50 cycles per minute in monocular accommodative flipper of and binocular accommodative flipper of +/-1.50 Exclusion Criteria: Diplopia from nerve palsies Retinal pathology Previous treatment of any amount of bifocal lenses and base in prism since concussion. Vision therapy > 6 weeks since concussion

Ages Eligible for Study
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Minimum Age: 9 Years
Maximum Age: 17 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Single vision glasses<br>Typical glasses prescribed for children to correct only distance refractive error and to be worn all waking hours. | Device: Glasses<br>* Glasses traditionally prescribed for refractive error<br>|
| Experimental: Single vision glasses with anti-glare coating<br>Typical glasses prescribed for children to correct only distance prescription with anti-glare coating and to be worn all waking hours. | Device: Glasses<br>* Glasses traditionally prescribed for refractive error<br>|
| Experimental: Eyezen<br>Commercially available, low-powered, progressive addition lenses glasses with anti-glare coating to be worn all waking hours | Device: Glasses<br>* Glasses traditionally prescribed for refractive error<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Convergence Insufficiency Symptom Survey | This survey quantifies convergence insufficiency symptoms on a scale. The scale measures the severity of symptoms from the condition, convergence insufficiency. Score on a scale can range from 0 (least) to 60 (worst). This survey has been proven to be an effective and accurate gauge by previous research and study groups. | Assessed up to 12 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Convergence Breaking Point at Near (Base Out Prism) | This outcome measurement was the maximum base out prism diopters when the patient first reported diplopia of a near target or started suppressing one of the eyes as determined by the examiner. | Assessed up to 12 months |