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LineM: assessing metamorphopsia symptom using line manipulation task

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Abstract

Metamorphopsia patients experience distortions in their views. The number of metamorphopsia patients is arising with the increase in the elderly population. For early detection of metamorphopsia, examination approaches have been proposed. However, none of the existing methods can be employed to precisely assess the perceptions of patients. We propose LineM as a novel method to precisely measure the distorted views of metamorphopsia patients based on interactive line manipulation task involving the patients. To explore the potential of LineM, a case study which uses the measured results from LineM to visualize the distorted views of metamorphopsia patients is presented. Furthermore, a novel technique for compensating the distorted views of individual metamorphopsia patients using the results from LineM is also presented. Considering that elderly individuals account for the majority of metamorphopsia patients, an intuitive and user-friendly prototype system has been implemented. The effectiveness and usability of LineM and the compensation method were demonstrated via a qualitative and subjective experiment that involved metamorphopsia patients and elderly participants.

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Acknowledgements

This work is supported by JSPS Grants-in-Aid for Scientific Research (Grant Nos. 17H00738, 19H05472, and 20J15406). We would like to thank all patients and participants who helped evaluate LineM. Their valuable comments contributed to the design and improvement of the system. Hiromichi Ichige contributed to the implementation of the system.

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Authors and Affiliations

  1. Graduate School of Engineering, University of Yamanashi, Kofu, 400-8511, Japan

    Zhenyang Zhu

  2. Department of Computer Science and Engineering, University of Yamanashi, Kofu, 400-8511, Japan

    Masahiro Toyoura, Kentaro Go & Xiaoyang Mao

  3. Department of Information and Computer Science, Keio University, Yokohama, 223-8522, Japan

    Issei Fujishiro

  4. Department of Ophthalmology, University of Yamanashi, Chuo, 409-3898, Japan

    Kenji Kashiwagi

  5. School of Computer Science, Hangzhou Dianzi University, 1156 2nd Street, Hangzhou, 310018, China

    Xiaoyang Mao

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  1. Zhenyang Zhu
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  2. Masahiro Toyoura
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  3. Issei Fujishiro
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  4. Kentaro Go
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  5. Kenji Kashiwagi
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  6. Xiaoyang Mao
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Correspondence to Xiaoyang Mao.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this published paper.

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The experimental protocol was established, according to the ethical guidelines of the Helsinki Declaration and was approved by the Ethics Committee of University of Yamanashi.

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Zhu, Z., Toyoura, M., Fujishiro, I. et al. LineM: assessing metamorphopsia symptom using line manipulation task. Vis Comput 38, 1607–1617 (2022). https://doi.org/10.1007/s00371-021-02091-9

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