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The Effect of Orthokeratology on Accommodative and Convergence Function: A Clinic Based Pilot Study

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Author(s): Paul Brand, BAppSc(Optom), GradCertOcTher

Journal: Optometry & Visual Performance
ISSN 2325-3479

Volume: 1;
Issue: 5;
Start page: 162;
Date: 2013;
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Keywords: accommodation | myopia | myopia control | orthokeratology

ABSTRACT
Background: Orthokeratology is a successful treatment for patients with myopia. There has been little research on its effects on accommodation and convergence. Methods: Eleven subjects presenting for orthokeratology had accommodative and convergence function assessed pre- and post-treatment. Based on the results, patients were categorised as normal or embedded. The pre- and post-treatment results were compared.Results: This pilot study found that of the 11 subjects, 10 (90.1%) demonstrated an improved accommodative convergence profile after treatment (p=0.003). The subject who demonstrated no change was the only one that had a normal profile before treatment. No subject displayed a worse accommodative convergence profile post-treatment. Conclusion: This suggests that orthokeratology has a positive effect on accommodation and convergence function. More research with larger sample sizes is required to confirm this result.
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