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The Effect of Bangerter Filters on Visual Acuity and Contrast Sensitivity With External Noise

It is critical to address the relationship between density label of Bangerter filters and expected visual acuity, and how filters modulate contrast sensitivity (CS) at different spatial frequency and external noise levels. In the current study, the monocular visual acuity and CS at ten spatial frequ...

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Autores principales: Zhang, Pan, Wang, Hanlin, Ren, Weicong, Guo, Huanhuan, Yang, Jiayi, Tao, Jiayu, Yang, Zhijie, Li, Ying, Chen, Lijun, Zhang, Yajing, Wu, Di
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9136063/
https://www.ncbi.nlm.nih.gov/pubmed/35645725
http://dx.doi.org/10.3389/fnins.2022.804576
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author Zhang, Pan
Wang, Hanlin
Ren, Weicong
Guo, Huanhuan
Yang, Jiayi
Tao, Jiayu
Yang, Zhijie
Li, Ying
Chen, Lijun
Zhang, Yajing
Wu, Di
author_facet Zhang, Pan
Wang, Hanlin
Ren, Weicong
Guo, Huanhuan
Yang, Jiayi
Tao, Jiayu
Yang, Zhijie
Li, Ying
Chen, Lijun
Zhang, Yajing
Wu, Di
author_sort Zhang, Pan
collection PubMed
description It is critical to address the relationship between density label of Bangerter filters and expected visual acuity, and how filters modulate contrast sensitivity (CS) at different spatial frequency and external noise levels. In the current study, the monocular visual acuity and CS at ten spatial frequencies and three noise levels were measured in normal subjects wearing no filters, 0.8, 0.4, or 0.2 Bangerter filters. Compared with the baseline condition (no filter worn), Bangerter filters degraded both visual acuity and contrast sensitivity function (CSF) in zero-noise conditions, but the reduction of both visual functions did not correlate with each other at any filter level. In addition, the stronger the filter was, the worse both visual functions became. In contrast, when external noise was present, filters improved the contrast sensitivity at low frequencies but deteriorated it at intermediate and high spatial frequencies. The perceptual template model was used to reveal the corresponding mechanism accounted for filter-induced visual function changes. Although the internal process in visual system should not be affected by the filters, the measurement of parameters was biased. To be specific, (1) the internal additive noise was elevated at all frequencies; (2) the perceptual template was improved at low spatial frequencies but impaired at intermediate spatial frequencies; and (3) the changes in both factors were highly dependent on filter intensity. We conclude that Bangerter filters influence visual acuity and contrast sensitivity differently and that their effect on contrast sensitivity depends on spatial frequency and noise.
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spelling pubmed-91360632022-05-28 The Effect of Bangerter Filters on Visual Acuity and Contrast Sensitivity With External Noise Zhang, Pan Wang, Hanlin Ren, Weicong Guo, Huanhuan Yang, Jiayi Tao, Jiayu Yang, Zhijie Li, Ying Chen, Lijun Zhang, Yajing Wu, Di Front Neurosci Neuroscience It is critical to address the relationship between density label of Bangerter filters and expected visual acuity, and how filters modulate contrast sensitivity (CS) at different spatial frequency and external noise levels. In the current study, the monocular visual acuity and CS at ten spatial frequencies and three noise levels were measured in normal subjects wearing no filters, 0.8, 0.4, or 0.2 Bangerter filters. Compared with the baseline condition (no filter worn), Bangerter filters degraded both visual acuity and contrast sensitivity function (CSF) in zero-noise conditions, but the reduction of both visual functions did not correlate with each other at any filter level. In addition, the stronger the filter was, the worse both visual functions became. In contrast, when external noise was present, filters improved the contrast sensitivity at low frequencies but deteriorated it at intermediate and high spatial frequencies. The perceptual template model was used to reveal the corresponding mechanism accounted for filter-induced visual function changes. Although the internal process in visual system should not be affected by the filters, the measurement of parameters was biased. To be specific, (1) the internal additive noise was elevated at all frequencies; (2) the perceptual template was improved at low spatial frequencies but impaired at intermediate spatial frequencies; and (3) the changes in both factors were highly dependent on filter intensity. We conclude that Bangerter filters influence visual acuity and contrast sensitivity differently and that their effect on contrast sensitivity depends on spatial frequency and noise. Frontiers Media S.A. 2022-05-13 /pmc/articles/PMC9136063/ /pubmed/35645725 http://dx.doi.org/10.3389/fnins.2022.804576 Text en Copyright © 2022 Zhang, Wang, Ren, Guo, Yang, Tao, Yang, Li, Chen, Zhang and Wu. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Neuroscience
Zhang, Pan
Wang, Hanlin
Ren, Weicong
Guo, Huanhuan
Yang, Jiayi
Tao, Jiayu
Yang, Zhijie
Li, Ying
Chen, Lijun
Zhang, Yajing
Wu, Di
The Effect of Bangerter Filters on Visual Acuity and Contrast Sensitivity With External Noise
title The Effect of Bangerter Filters on Visual Acuity and Contrast Sensitivity With External Noise
title_full The Effect of Bangerter Filters on Visual Acuity and Contrast Sensitivity With External Noise
title_fullStr The Effect of Bangerter Filters on Visual Acuity and Contrast Sensitivity With External Noise
title_full_unstemmed The Effect of Bangerter Filters on Visual Acuity and Contrast Sensitivity With External Noise
title_short The Effect of Bangerter Filters on Visual Acuity and Contrast Sensitivity With External Noise
title_sort effect of bangerter filters on visual acuity and contrast sensitivity with external noise
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9136063/
https://www.ncbi.nlm.nih.gov/pubmed/35645725
http://dx.doi.org/10.3389/fnins.2022.804576
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