Torres VRF, Cedillo LM, Ortiz FAS, Contreras AV, Villaseñor SJ, García GG

Language: Spanish
References: 7
Page: 1-9
PDF size: 191.13 Kb.

ABSTRACT

Objective: Determine the effectiveness of visual therapy with PlayStation Portable^TM for amblyopia.
Methods: The study sample was composed of 40 patients aged 5-10 years with strabismic amblyopia, anisometropic amblyopia or both, randomized to 4 groups according to the therapy to be used (10 patients per group): Group 1: PlayStation Portable^TM and red-green lenses; Group 2: PlayStation Portable^TM and frosted glass lenses on the fixating (non-amblyopic) eye; Group 3: PlayStation Portable^TM and occlusive patch on the fixating eye; Group 4: occlusive patch on the fixating eye without PlayStation Portable^TM. All the patients used their refraction. The activities performed by Groups 1-3 included playing video games and watching movies 1-2 hours per day; Group 4 could perform any activity. Best corrected visual acuity was measured weekly until completing 3 months of treatment. In the post-treatment period best corrected visual acuity was measured monthly for 3 months.
Results: A total 40 patients were studied, of whom 60 % were female, with a mean age of 8.2 years, range of 5-10 years. Strabismic amblyopia was the most common type (55 %), followed by anisometropic amblyopia (37,5 %) and both (7.5 %). The affected eye was the left eye in 62.5 % and the right eye in 37.5 %.
Conclusions: It was found that PlayStation Portable^TM is effective as therapy for amblyopia, improving best corrected visual acuity. The group with the best results was the red-green filter group. Upon suspension of the therapy, visual deterioration was observed in the 4 groups, without returning to baseline values.

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