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Vision therapy to reduce abnormal nearwork-induced transient myopia
1Department of Vision Sciences, State University of New York, State College of Optometry, New York, USA.
Summary
Vision therapy effectively reduced symptoms and improved objective measures in patients experiencing abnormal nearwork-induced transient myopia (ANITM). This study demonstrates positive outcomes for vision therapy in managing ANITM.
Area of Science:
- Optometry
- Ophthalmology
- Vision Science
Background:
- Transient distance blur and pseudomyopic shifts after nearwork are reported by some young patients.
- Abnormal nearwork-induced transient myopia (ANITM) is a documented phenomenon, but its response to vision therapy lacks objective evidence.
- Symptomatic individuals require effective management strategies for ANITM.
Purpose of the Study:
- To objectively evaluate the effects of conventional optometric vision therapy on symptomatic individuals with ANITM.
- To assess changes in ANITM, accommodative facility, and related symptoms following vision therapy.
Main Methods:
- Five symptomatic subjects underwent 7-10 weeks of accommodative facility vision therapy, including lens flippers and Hart chart exercises.
- Objective measurements of ANITM and its decay were recorded using a Canon R-1 autorefractor before and after therapy.
- A daily log documented nearwork-related symptomatology.
Main Results:
- Significant reduction in patient-reported symptoms was observed post-therapy.
- Marked improvements in clinical accommodative facility measures were noted.
- Objective findings related to ANITM showed considerable improvement after the vision therapy intervention.
Conclusions:
- Optometric accommodative vision therapy demonstrates multi-faceted positive effects in symptomatic individuals with ANITM.
- Vision therapy is a viable treatment option for managing abnormal nearwork-induced transient myopia.
- Objective and subjective improvements support the efficacy of vision therapy for ANITM.