Changing accommodation behaviour during multifocal soft contact lens wear using auditory biofeedback training

Abstract Biofeedback training has been used to access autonomically-controlled body functions through visual or acoustic signals to manage conditions like anxiety and hyperactivity. Here we examined the use of auditory biofeedback to improve accommodative responses to near visual stimuli in patients...

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Main Authors: Sandra Wagner, Frank Schaeffel, David Troilo
Format: Article
Language:English
Published: Nature Portfolio 2020-03-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-020-61904-4
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author Sandra Wagner
Frank Schaeffel
David Troilo
author_facet Sandra Wagner
Frank Schaeffel
David Troilo
author_sort Sandra Wagner
collection DOAJ
description Abstract Biofeedback training has been used to access autonomically-controlled body functions through visual or acoustic signals to manage conditions like anxiety and hyperactivity. Here we examined the use of auditory biofeedback to improve accommodative responses to near visual stimuli in patients wearing single vision (SV) and multifocal soft contact lenses (MFCL). MFCLs are one evidence-based treatment shown to be effective in slowing myopia progression in children. However, previous research found that the positive addition relaxed accommodation at near, possibly reducing the therapeutic benefit. Accommodation accuracy was examined in 18 emmetropes and 19 myopes while wearing SVCLs and MFCLs (centre-distance). Short periods of auditory biofeedback training to improve the response (reduce the lag of accommodation) was performed and accommodation re-assessed while patients wore the SVCLs and MFCLs. Significantly larger accommodative lags were measured with MFCLs compared to SV. Biofeedback training effectively reduced the lag by ≥0.3D in individuals of both groups with SVCL and MFCL wear. The training was more effective in myopes wearing their habitual SVCLs. This study shows that accommodation can be changed with short biofeedback training independent of the refractive state. With this proof-of-concept, we hypothesize that biofeedback training in myopic children wearing MFCLs might improve the treatment effectiveness.
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spelling doaj.art-9dd9f63a531544a3b296012aa04a86a72022-12-21T21:24:27ZengNature PortfolioScientific Reports2045-23222020-03-0110111010.1038/s41598-020-61904-4Changing accommodation behaviour during multifocal soft contact lens wear using auditory biofeedback trainingSandra Wagner0Frank Schaeffel1David Troilo2Institute for Ophthalmic Research, Eberhard Karls University TuebingenSection Neurobiology of the Eye, Institute for Ophthalmic Research, Eberhard Karls University TuebingenState University of New York, College of OptometryAbstract Biofeedback training has been used to access autonomically-controlled body functions through visual or acoustic signals to manage conditions like anxiety and hyperactivity. Here we examined the use of auditory biofeedback to improve accommodative responses to near visual stimuli in patients wearing single vision (SV) and multifocal soft contact lenses (MFCL). MFCLs are one evidence-based treatment shown to be effective in slowing myopia progression in children. However, previous research found that the positive addition relaxed accommodation at near, possibly reducing the therapeutic benefit. Accommodation accuracy was examined in 18 emmetropes and 19 myopes while wearing SVCLs and MFCLs (centre-distance). Short periods of auditory biofeedback training to improve the response (reduce the lag of accommodation) was performed and accommodation re-assessed while patients wore the SVCLs and MFCLs. Significantly larger accommodative lags were measured with MFCLs compared to SV. Biofeedback training effectively reduced the lag by ≥0.3D in individuals of both groups with SVCL and MFCL wear. The training was more effective in myopes wearing their habitual SVCLs. This study shows that accommodation can be changed with short biofeedback training independent of the refractive state. With this proof-of-concept, we hypothesize that biofeedback training in myopic children wearing MFCLs might improve the treatment effectiveness.https://doi.org/10.1038/s41598-020-61904-4
spellingShingle Sandra Wagner
Frank Schaeffel
David Troilo
Changing accommodation behaviour during multifocal soft contact lens wear using auditory biofeedback training
Scientific Reports
title Changing accommodation behaviour during multifocal soft contact lens wear using auditory biofeedback training
title_full Changing accommodation behaviour during multifocal soft contact lens wear using auditory biofeedback training
title_fullStr Changing accommodation behaviour during multifocal soft contact lens wear using auditory biofeedback training
title_full_unstemmed Changing accommodation behaviour during multifocal soft contact lens wear using auditory biofeedback training
title_short Changing accommodation behaviour during multifocal soft contact lens wear using auditory biofeedback training
title_sort changing accommodation behaviour during multifocal soft contact lens wear using auditory biofeedback training
url https://doi.org/10.1038/s41598-020-61904-4
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