Improving Control of Intermittent Exotropia
Retina Foundation of the Southwest
Summary
To determine whether use of dichoptic movies for 8 weeks may be helpful in improving control alignment in children with intermittent exotropia (IXT), thus allowing IXT to be managed non-surgically
Description
Intermittent exotropia (IXT) is the most common form of strabismus, characterized by an outward deviation of the eyes that is primarily manifest during distance fixation and can intermittently be controlled by fusional mechanisms. Less than 30% of children have good long-term outcomes following treatment for spontaneously manifest IXT with current non-surgical treatments (prism therapy, over-minus lenses, or vision therapy). The limited efficacy of current non-surgical treatments for IXT is thought to arise from underlying sensory deficits, particularly interocular suppression, which compromis…
Eligibility
- Age range
- 4–10 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Diagnosis of IXT or XT at Distance \& IXT or XP at near (Basic or Pseudo Divergence Excess subtype of IXT) * No surgery planned for 6 months Exclusion Criteria: * Prior eye muscle surgery * Prior binocular treatment or vision therapy * Amblyopia * Neurological conditions, seizure disorders, vestibular abnormalities, or frequent headache * Other eye conditions (refractive error OK)
Interventions
- Otherdichoptic videos
custom designed dichoptic videos
- Otherstandard videos
standard videos
Location
- Retina Foundation of the SouthwestDallas, Texas