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Stereoacuity Improvement using Random-Dot Video Games
Published on: January 14, 2020
Innovative nonsurgical treatment for central-peripheral rivalry-type diplopia.
Lindsay D Klaehn1, Tia B Bodi1, Andrea M Kramer1
1Department of Ophthalmology, Mayo Clinic and Mayo Foundation, Rochester, Minnesota.
Summary
Multifocal contact lenses effectively reduced central-peripheral rivalry-type diplopia and metamorphopsia in patients with epiretinal membrane. This visual aid offers a promising, non-invasive solution for improving vision quality in maculopathy patients.
Area of Science:
- Ophthalmology
- Optometry
- Vision Science
Background:
- Central-peripheral rivalry-type diplopia (CPR-type) and metamorphopsia are common visual disturbances in patients with epiretinal membrane (ERM) and other maculopathies.
- These conditions can significantly impair visual function and quality of life.
Purpose of the Study:
- To investigate the efficacy of multifocal contact lenses in alleviating CPR-type diplopia and associated visual symptoms in patients with ERM and maculopathies.
- To assess the impact of multifocal contact lenses on metamorphopsia and aniseikonia.
Main Methods:
- A cohort of 17 adult patients with ERM or macular hole and CPR-type diplopia were enrolled.
- A center-distance multifocal contact lens with +2.50 bifocal power was applied to the affected eye.
- Measurements of diplopia, metamorphopsia (M-Charts, Amsler grid), and aniseikonia (Awaya test) were taken before and 30 minutes after lens application.
Main Results:
- Diplopia improved in 59% of patients, resolving from double vision to single vision.
- Significant subjective improvement in metamorphopsia was reported by 94% of patients (mean M-Chart score decreased from 0.46 to 0.19).
- Improvement in Amsler grid distortion was observed in 76% of patients (mean boxes decreased from 111.8 to 38.2). Aniseikonia showed a trend towards improvement but was not statistically significant.
Conclusions:
- Multifocal contact lenses are a promising non-invasive treatment option for CPR-type diplopia in patients with ERM and macular hole.
- These lenses effectively reduce metamorphopsia by functionally masking peripheral visual field distortions while preserving central visual acuity.
- Multifocal contact lenses offer a viable alternative for improving visual function and quality of life in patients with maculopathy-related visual disturbances.
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