{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,26]],"date-time":"2026-02-26T06:31:47Z","timestamp":1772087507434,"version":"3.50.1"},"reference-count":28,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2026,2,24]],"date-time":"2026-02-24T00:00:00Z","timestamp":1771891200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ministry of Education","award":["2025-RISE-10-001"],"award-info":[{"award-number":["2025-RISE-10-001"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JEMR"],"abstract":"<jats:p>This study developed a tablet PC\u2013based eye movement assessment application and conducted a pilot investigation to explore whether tablet-based ocular motor metrics demonstrate functional sensitivity to variations in conventional visual function parameters. Twenty-three healthy adults (10 males, 13 females; mean age: 24.41 \u00b1 1.91 years) without a history of ocular disease performed smooth pursuit and saccadic eye movement tests at three difficulty levels. For exploratory analysis, participants were stratified into above- and below-mean groups based on conventional visual function test results. For smooth pursuit movements, mean pursuit traversal time demonstrated statistically significant differences between the low\u2013medium (1.11 s) and low\u2013high (1.14 s) difficulty levels (p &lt; 0.05), with corresponding differences in derived velocity. Saccadic movements showed significant mean accuracy differences between low-high (1.02 points) and medium-high (0.95 points) difficulty levels (p &lt; 0.05). Participants with higher-than-average horizontal phoria values (distance and near) and the blur\/break points of near convergence amplitude exhibited significantly longer smooth pursuit traversal times (corresponding to slower derived velocities) (p &lt; 0.05). The high-value group for blur point of near convergence amplitude demonstrated significantly superior saccadic accuracy (1.63 points) compared with the low-value group (1.30 points) (p &lt; 0.05). Exploratory associations between visual function parameters and ocular motor performance were observed within the healthy participant group, suggesting exploratory associations between tablet-based smooth pursuit and saccadic eye movement performance and conventional visual function measures. These findings suggest that tablet PC\u2013based eye movement assessment may serve as a feasible, low-cost approach for exploratory screening and functional monitoring, rather than a validated diagnostic tool.<\/jats:p>","DOI":"10.3390\/jemr19020024","type":"journal-article","created":{"date-parts":[[2026,2,24]],"date-time":"2026-02-24T08:54:56Z","timestamp":1771923296000},"page":"24","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Feasibility Study of Tablet-Based Eye Movement Assessment Using a Built-In Camera: A Pilot Study"],"prefix":"10.3390","volume":"19","author":[{"given":"Kyunghyun","family":"Park","sequence":"first","affiliation":[{"name":"Department of Optometry, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Unseok","family":"Lee","sequence":"additional","affiliation":[{"name":"Department Biomedical Laboratory Science, Catholic Kwandong University, Gangneung 25522, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4730-643X","authenticated-orcid":false,"given":"Sejoon","family":"Moon","sequence":"additional","affiliation":[{"name":"Department Biomedical Laboratory Science, Catholic Kwandong University, Gangneung 25522, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hyungsik","family":"Bae","sequence":"additional","affiliation":[{"name":"Department of Optometry, Catholic Kwandong University, Gangneung 25522, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1200-9913","authenticated-orcid":false,"given":"Hyungoo","family":"Kang","sequence":"additional","affiliation":[{"name":"Department Biomedical Laboratory Science, Catholic Kwandong University, Gangneung 25522, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2026,2,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Enderle, J. (2006). Eye Movements. Wiley Encyclopedia of Biomedical Engineering, John Wiley and Sons.","DOI":"10.1002\/9780471740360.ebs0471"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"620","DOI":"10.1111\/1469-8986.00063","article-title":"Reliability of smooth pursuit, fixation, and saccadic eye movements","volume":"40","author":"Ettinger","year":"2003","journal-title":"Psychophysiology"},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Tahri Sqalli, M., Aslonov, B., Gafurov, M., Mukhammadiev, N., and Sqalli Houssaini, Y. (2023). Eye tracking technology in medical practice: A perspective on its diverse applications. Front. Med. Technol., 5.","DOI":"10.3389\/fmedt.2023.1253001"},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Cecchetti, S., Duchowski, A.T., and Cavallo, M. (2025). Eye-Tracking Metrics as a Digital Biomarker for Neurocognitive Disorders in Multiple Sclerosis: A Scoping Review. Brain Sci., 15.","DOI":"10.3390\/brainsci15020149"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"13727","DOI":"10.1038\/s41598-022-18163-2","article-title":"Deficits in multiple object-tracking and visual attention following mild traumatic brain injury","volume":"12","author":"Alnawmasi","year":"2022","journal-title":"Sci. Rep."},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Nilsson Benfatto, M., \u00d6qvist Seimyr, G., Ygge, J., Pansell, T., Rydberg, A., and Jacobson, C. (2016). Screening for dyslexia using eye tracking during reading. PLoS ONE, 11.","DOI":"10.1371\/journal.pone.0165508"},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Ahmed, I.A., Senan, E.M., Rassem, T.H., Ali, M.A., Shatnawi, H.S.A., Alwazer, S.M., and Alshahrani, M. (2022). Eye tracking-based diagnosis and early detection of autism spectrum disorder using machine learning and deep learning techniques. Electronics, 11.","DOI":"10.3390\/electronics11040530"},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Holland, C., and Komogortsev, O. (2012, January 28\u201330). Eye tracking on unmodified common tablets: Challenges and solutions. Proceedings of the Symposium on Eye Tracking Research and Applications, Santa Barbara, CA, USA.","DOI":"10.1145\/2168556.2168615"},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Khamis, M., Alt, F., and Bulling, A. (2018, January 3\u20136). The past, present, and future of gaze-enabled handheld mobile devices: Survey and lessons learned. Proceedings of the 20th International Conference on Human-Computer Interaction with Mobile Devices and Services, Barcelona Spain.","DOI":"10.1145\/3229434.3229452"},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Yoo, J.H., Kang, C., Lim, J.S., Wang, B., Choi, C.H., Hwang, H., Han, D.H., Kim, H., Cheon, H., and Kim, J.W. (2024). Development of an innovative approach using portable eye tracking to assist ADHD screening: A machine learning study. Front. Psychiatry, 15.","DOI":"10.3389\/fpsyt.2024.1337595"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"165","DOI":"10.1080\/00913847.2019.1645577","article-title":"Awareness and perceived value of eye tracking technology for concussion assessment among sports medicine clinicians: A multinational study","volume":"48","author":"Snegireva","year":"2020","journal-title":"Physician Sportsmed."},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Elasayed, A.E., Albashir, Z.A., Taha, K.A., and Abdelrahman, A. (2018, January 12\u201314). Implementation of mobile application for testing hearing and vision: Study case. Proceedings of the 2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE), Khartoum, Sudan.","DOI":"10.1109\/ICCCEEE.2018.8515801"},{"key":"ref_13","first-page":"71","article-title":"The effect of smooth pursuit eye movement using portable device to chronic hemispatial neglect: A pilot study","volume":"6","author":"Shin","year":"2017","journal-title":"Ther. Sci. Neurorehabilit."},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Lee, T.L., Yeung, M.K., Sze, S.L., and Chan, S.L. (2020). Computerized eye-tracking training improves the saccadic eye movements of children with attention-deficit\/hyperactivity disorder. Brain Sci., 10.","DOI":"10.3390\/brainsci10121016"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"17","DOI":"10.1167\/tvst.8.1.17","article-title":"Portable perimetry using eye-tracking on a tablet computer: A feasibility assessment","volume":"8","author":"Jones","year":"2019","journal-title":"Transl. Vis. Sci. Technol."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"18162","DOI":"10.1038\/s41598-020-75661-x","article-title":"Accurate detection of cerebellar smooth pursuit eye movement abnormalities using smartphone video","volume":"10","author":"Chang","year":"2020","journal-title":"Sci. Rep."},{"key":"ref_17","first-page":"45","article-title":"Validation of an iPad-based eye movement assessment for neurological screening","volume":"11","author":"Koerner","year":"2025","journal-title":"NPJ Park. Dis."},{"key":"ref_18","unstructured":"VisualCamp (2026, January 12). Eyedid SDK: Simple, Easy, Multi-Platform Eyetracking SDK. Available online: https:\/\/manage.seeso.io\/#\/console\/sdk."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"561","DOI":"10.1016\/0042-6989(85)90160-9","article-title":"The upper limit of human smooth pursuit velocity","volume":"25","author":"Meyer","year":"1985","journal-title":"Vis. Res."},{"key":"ref_20","unstructured":"Gyllensten, O.C. (2014). Evaluation of Classification Algorithms for Smooth Pursuit Eye Movements. [Master\u2019s Thesis, Link\u00f6ping University]."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"274","DOI":"10.1152\/jn.00408.2017","article-title":"Multiple spatial representations interact to increase reach accuracy","volume":"118","author":"Vazquez","year":"2017","journal-title":"J. Neurophysiol."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1016\/j.visres.2013.08.003","article-title":"Predictability of spatial and non-spatial target properties improves saccade and manual response performance","volume":"91","author":"Born","year":"2013","journal-title":"Vis. Res."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"460","DOI":"10.1016\/j.visres.2008.12.006","article-title":"Speed and accuracy of saccades, vergence and combined eye movements in subjects with strabismus before and after eye surgery","volume":"49","author":"Bucci","year":"2009","journal-title":"Vis. Res."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"379","DOI":"10.1016\/j.jpsychires.2022.10.042","article-title":"Vergence eye movements impairments in schizophrenia and bipolar disorder","volume":"156","author":"Chrobak","year":"2022","journal-title":"J. Psychiatr. Res."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"477 1901","DOI":"10.1001\/jama.2014.3192","article-title":"The Pathophysiology and Treatment of Glaucoma: A Review","volume":"311","author":"Weinreb","year":"2014","journal-title":"JAMA"},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Tan, T.-E., and Wong, T.Y. (2023). Diabetic Retinopathy: Looking Forward to 2030. Front. Endocrinol., 13.","DOI":"10.3389\/fendo.2022.1077669"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"31","DOI":"10.1038\/s41572-021-00265-2","article-title":"Age-related macular degeneration","volume":"7","author":"Fleckenstein","year":"2021","journal-title":"Nat. Rev. Dis. Primers"},{"key":"ref_28","doi-asserted-by":"crossref","unstructured":"Lin, L., Liang, Y., Jiang, G., Gan, Q., Yang, T., Liao, P., and Liang, H. (2025). Global, regional, and national burden of cataract: A 484 comprehensive analysis and projections from 1990 to 2021. PLoS ONE, 20.","DOI":"10.1371\/journal.pone.0326263"}],"container-title":["Journal of Eye Movement Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1995-8692\/19\/2\/24\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,2,26]],"date-time":"2026-02-26T05:18:16Z","timestamp":1772083096000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1995-8692\/19\/2\/24"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,2,24]]},"references-count":28,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2026,4]]}},"alternative-id":["jemr19020024"],"URL":"https:\/\/doi.org\/10.3390\/jemr19020024","relation":{},"ISSN":["1995-8692"],"issn-type":[{"value":"1995-8692","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,2,24]]}}}