Alterations Induced by Bangerter Filters on the Visual Field: A Frequency Doubling Technology and Standard Automated Perimetry Study
Joint Authors
Schiavi, Costantino
Tassi, Filippo
Finzi, Alessandro
Cellini, Mauro
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-01-20
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Purpose.
To investigate the effects of Bangerter filters on the visual field in healthy and in amblyopic patients.
Materials and Methods.
Fifteen normal adults and fifteen anisometropic amblyopia patients were analysed with standard automated perimetry (SAP) and frequency doubling technology (FDT) at baseline and with filters 0.8 and 0.1.
Results.
With 0.1 filter in SAP there was an increase of MD compared with controls (−10.24 ± 1.09 dB) in either the amblyopic (−11.34 ± 2.06 dB; P < 0.050 ) or sound eyes (−11.34 ± 1.66 dB; P < 0.030 ).
With filters 0.8 the PSD was increased in the amblyopic eyes (2.09 ± 0.70 dB; P < 0.007 ) and in the sound eyes (1.92 ± 0.29 dB; P < 0.004 ) compared with controls.
The FDT-PSD values in the control group were increased with the interposition of the filters compared to baseline (0.8; P < 0.0004 and 0.1; P < 0.0010 ).
We did not find significant differences of the baseline PSD between amblyopic eyes (3.80 ± 2.21 dB) and the sound eyes (4.33 ± 1.31 dB) and when comparing the filters 0.8 (4.55 ± 1.50 versus 4.53 ± 1.76 dB) and 0.1 (4.66 ± 1.80 versus 5.10 ± 2.04 dB).
Conclusions.
The use of Bangerter filters leads to a reduction of the functionality of the magno- and parvocellular pathway.
American Psychological Association (APA)
Schiavi, Costantino& Tassi, Filippo& Finzi, Alessandro& Cellini, Mauro. 2015. Alterations Induced by Bangerter Filters on the Visual Field: A Frequency Doubling Technology and Standard Automated Perimetry Study. Journal of Ophthalmology،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1069880
Modern Language Association (MLA)
Schiavi, Costantino…[et al.]. Alterations Induced by Bangerter Filters on the Visual Field: A Frequency Doubling Technology and Standard Automated Perimetry Study. Journal of Ophthalmology No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1069880
American Medical Association (AMA)
Schiavi, Costantino& Tassi, Filippo& Finzi, Alessandro& Cellini, Mauro. Alterations Induced by Bangerter Filters on the Visual Field: A Frequency Doubling Technology and Standard Automated Perimetry Study. Journal of Ophthalmology. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1069880
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1069880