Using Dichoptic Therapy to Treat Intermittent Exotropia
Virginia Commonwealth University
Summary
Intermittent exotropia is difficult to treat. The mainstay of treatment involves surgery, and in one long-term study authors found that as many as 60% of IXT required at least one re-operation.Patching of the non-dominant eye has also been tested in a large, multi-center randomized control trial and was not found to have a large benefit. More non-surgical treatment modalities are critical to improve the care in this condition.
Description
Luminopia, a dichoptic therapy device, was approved by the FDA in 2021 for use in amblyopia in children aged 4-7 years. The device was shown to improve vision in the amblyopic eye by lines in three months of use. Patients with strabismic amblyopia were also enrolled in the trial and found to have similar gains in vision in the amblyopic eye. Li et al. used an investigational dichoptic therapy device in patients with intermittent exotropia and had a statistically significant improvement in ocular alignment as measured in prism diopters.The dichoptic therapy this study used is not commercially…
Eligibility
- Age range
- 4–7 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Diagnosed with IXT * one eye that is their preferred eye * ages 4-7 * distance control scores of \<= 4 Exclusion Criteria: * distance control scores of 5 * patients with visual acuity with vision that is worse in one eye by greater than two lines * no preferred eye * patients who would be unable to tolerate wearing the headset for 1 hour/day, 6 days/week, for 12 weeks.
Interventions
- DeviceLuminopia, a virtual reality headset
Subjects will be provided with the equipment to use in their homes for six hours usage per week (1 hour 6 days a week), for 12 weeks.
- OtherPaper pre- survey
Pre-survey to be completed by the parent and child. Questions may be skipped. Survey developed by the study team
- OtherPaper Survey
Post-survey to be completed by the parent and child. Questions may be skipped. Survey developed by the study team
Location
- Virginia Commonwealth UniversityRichmond, Virginia