Effectiveness of a Virtual Reality Head-Mounted Display System-Based Developmental Eye Movement Test
Abstract
:Introduction
DEM and VHD
- The test performance time is revised and recorded in accordance with the number of inaccuracies. Accordingly, the test performance time and the number of inaccuracies are important factors in the evaluation. The DEM test procedure is described below.
- Tests A and B are read aloud in the vertical direction. The time required for reading and the number of inaccurate answers, additional numbers (including repetitions), omissions, and switches is recorded.
- Test C is read aloud in the horizontal direction. The time required for reading and the number of inaccurate answers, additional numbers (including repetitions), omissions, and switches is recorded.
- Check the total number of inaccuracies. Inaccurately read numbers should be marked s, additional numbers should be marked a, omissions should be marked o, and switches in order during reading should be marked t. Therefore, the total number of inaccurate answers is calculated as s+a+o+t.
- The adjusted time is
- Calculate the horizontally adjusted versus vertically adjusted time as follows:
VR HMD
Optical system
Image formation on the convex lens
VR HMD parameters
Methods
Participants
Procedure
Medical questionnaire and prior eye movement tes
Visual function test
VHD chart production
Survey of subjective symptoms
Data analysis
Results
Near point test
Change in NPC
Change in NPA
Phoria test
Change in horizontal far phoria
Change in the horizontal near phoria
Subjective symptoms
DEM and VHD
DEM
Comparison of DEM and VHD
Correlation analysis of DEM and VHD
Error frequency comparison of each type between DEM and VHD
Near IPD of the top 10 and bottom 10 people by DEM and VHD test
Subjective symptoms of the top 10 and bottom 10 people in DEM and VHD tests
Discussion
Acknowledgments
References
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Kim, J.-H.; Son, H.-J.; Lee, S.-J.; Yun, D.-Y.; Kwon, S.-C.; Lee, S.-H. Effectiveness of a Virtual Reality Head-Mounted Display System-Based Developmental Eye Movement Test. J. Eye Mov. Res. 2016, 9, 1-14. https://doi.org/10.16910/jemr.9.6.4
Kim J-H, Son H-J, Lee S-J, Yun D-Y, Kwon S-C, Lee S-H. Effectiveness of a Virtual Reality Head-Mounted Display System-Based Developmental Eye Movement Test. Journal of Eye Movement Research. 2016; 9(6):1-14. https://doi.org/10.16910/jemr.9.6.4
Chicago/Turabian StyleKim, Jung-Ho, Ho-Jun Son, Sung-Jin Lee, Deok-Young Yun, Soon-Chul Kwon, and Seung-Hyun Lee. 2016. "Effectiveness of a Virtual Reality Head-Mounted Display System-Based Developmental Eye Movement Test" Journal of Eye Movement Research 9, no. 6: 1-14. https://doi.org/10.16910/jemr.9.6.4
APA StyleKim, J.-H., Son, H.-J., Lee, S.-J., Yun, D.-Y., Kwon, S.-C., & Lee, S.-H. (2016). Effectiveness of a Virtual Reality Head-Mounted Display System-Based Developmental Eye Movement Test. Journal of Eye Movement Research, 9(6), 1-14. https://doi.org/10.16910/jemr.9.6.4