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- W2283307382 abstract "Purpose: To study the effect of targeted divergence exercise on eye strain and relax of accommodation. Method: 60 myopic volunteers were recruited through poster advertisement and allocated into the test (41) and control (19) groups by order of presentation. The subjects were blinded to their allocations. All subjects wore a vision training device containing convex prism lenses (test) or plano lenses (control) and watched television at a three meter distance for ten sessions lasting one hour each over a three week period. Their refractive error and pupil size were measured before and after each session. Adverse symptoms were measured through questionnaires completed after each session. Results: After the tenth session, the test group showed a mean reduction in measured refractive error of 0.28±0.03D, while the Controls showed a mean reduction of 0.06±0.03D. A paired t-test yielded a significant difference in mean reduction between the groups (mean difference=0.22±0.05D, paired t=4.323, p=0.000). The measured pupil size in both groups did not reduce following training, thus showing the improvement in vision was not a result of pinhole effect by pupil miosis. The subjects experienced brief, fully reversible discomfort in initial sessions only. Conclusion: We found a statistically significant reduction in measured refractive error, likely due to the relax of accommodation or the reversal of over accommodation (e.g. pseudomyopia), when test subjects performed ocular divergency exercise using the ocular training device. Longitudinal studies are needed to evaluate the long term effect of ocular divergency vision training on myopic progression." @default.
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- W2283307382 date "2004-12-01" @default.
- W2283307382 modified "2023-09-22" @default.
- W2283307382 title "Preliminary Observations on the Efficacy of Ocular Divergence Exercise for the Relax of Accommodation" @default.
- W2283307382 doi "https://doi.org/10.30048/actasos.200412.0002" @default.
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