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The Feasibility and Utility of a Mobile-Based Eye Movement Recording Application: A Randomized Trial
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Hee Jin Chang, Sooyoung Kim, In-Sun Kwon, Han Young Yu, Seong-Hae Jeong
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Res Vestib Sci. 2020;19(4):120-126. Published online December 15, 2020
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DOI: https://doi.org/10.21790/rvs.2020.19.4.120
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 Abstract
 PDF Supplementary Material
- Objectives
This study was performed to assess the efficacy and feasibility of mobile application-based Frenzel tests in dizziness clinics.
Methods
We performed an investigator-initiated, blinded-outcome assessor, parallel, randomized controlled crossover trial at Chungnam National University Hospital between August 2019 and October 2019. Certified medical staffs were randomly assigned to the intervention group (i.e., a mobile application-based Frenzel glass system, n=15) or the observation group (i.e., a conventional desktop-based Frenzel glass system, n=15); the groups applied the respective systems for the preparation of eye movement recording and switched systems. The primary outcome was the elapsed time in seconds it took the participants to prepare the system for eye recording simulation. The secondary outcomes were perceived stress and satisfaction scores after completion of the operation, as measured by a questionnaire using 10-point Likert scales.
Results
The mean time of machine preparation for eye recording simulation was reduced by 50% in the mobile application group compared to the desktop group in both study periods (38.0±7.1 sec vs. 76.0±8.7 sec). We detected no carryover effect. Participants also reported lower stress while using application than while using the desktop system (2.3±1.3 vs. 4.6±2.4; p＜0.001). The application obtained a mean overall satisfaction score of 9.2 out of 10.
Conclusions
The implementation of an eye movement recording application in a dizziness examination was well adopted by users and decreased the time and stress related to machine operation.
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