Research Article
Feasibility Study of Smartphone-Based Tear Volume Measurement System
@ARTICLE{10.4108/eai.19-12-2017.153486, author={Yoshiro Okazaki and Tatsuki Takenaga and Taku Miyake and Mamoru Iwabuchi and Toshiyuki Okubo and Norihiko Yokoi}, title={Feasibility Study of Smartphone-Based Tear Volume Measurement System}, journal={EAI Endorsed Transactions on Ambient Systems}, volume={4}, number={16}, publisher={EAI}, journal_a={AMSYS}, year={2017}, month={12}, keywords={Smartphone, Tear volume, Dry eye, IoT device}, doi={10.4108/eai.19-12-2017.153486} }- Yoshiro Okazaki
Tatsuki Takenaga
Taku Miyake
Mamoru Iwabuchi
Toshiyuki Okubo
Norihiko Yokoi
Year: 2017
Feasibility Study of Smartphone-Based Tear Volume Measurement System
AMSYS
EAI
DOI: 10.4108/eai.19-12-2017.153486
Abstract
Evaluation of tear volume is important for diagnosing dry eye disease. At the clinical site, dedicated devices such as slit lamp microscopy or Schirmer’s test strip have been used to quantify tear volume by ophthalmologist. However, these devices have access only in medical office and therefore have limited availability for the public. Tear volume changes with environmental, physical or psychological situation. For that reason, measurement of tear volume regardless of location, time or circumstances can be beneficial. In this study, a tear volume measurement system based on the principle of meniscometry was developed and implemented on the smartphone, and its feasibility was evaluated. It was shown that tear meniscus radii of 22 human subjects were calculated to be mean 0.31 (SD 0.06) mm which was within the range of the previous study. The results suggested the feasibility of tear volume measurement system using the smartphone based on the principle of meniscometry as an IoT sensor.
Copyright © Yoshiro Okazaki et al., licensed to EAI. This is an open access article distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/3.0/), which permits unlimited use, distribution and reproduction in any medium so long as the original work is properly cited.
