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Semi-automated analysis of Goldmann perimetry for accreditation of Japanese physical disability certificate for visual disorder Yuto Iida 1 , Masayuki Akimoto 1 1Department of Ophthalmology, Japanese Red Cross Osaka Hospital pp.637-640
Published Date 2020/5/15
DOI https://doi.org/10.11477/mf.1410213565
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Abstract Purpose:When visual field evaluation is performed with a Goldmann perimeter for visual disorder accreditation of Japanese physical disability certificate, it is necessary to digitize the visual angle in eight directions using Ⅰ/4 target and Ⅰ/2 target. The method of obtaining the viewing angle at each direction is generally a method of measuring the distance on the paper of Goldmann perimetry result with a ruler and converting it into an angle one by one. In some cases, it is necessary to measure multiple lines for one direction, which is a cumbersome and time-consuming operation. We developed a simpler and more accurate method to digitize visual angles of Goldmann perimetry.

Subjects and Methods:Using the macro language of image analysis software “ImageJ”, we developed software that semi-automatically digitizes the viewing angle in each direction from the image of Goldmann perimetry results. In order to evaluate the usefulness of measurement by software, we prepared pseudo 20 Goldmann fields that imitate the field pattern of actual cases, and measured them by two methods, the conventional manual measurement and the newly developed semi-automated measurement. The results of the two methods were compared.

Results:The results of the conventional measurements and the measurements using software showed a high correlation(ρ=0.9998, p<0.01). The time required for the measurements was shorter when the software was used.

Conclusion:Quantitative evaluation of Goldmann perimetry results using software is simpler than conventional manual measurement and may help to reduce the burden of clinical work.


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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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