https://www.journalor.com/index.php/OR <p style="text-align: justify;"><strong>Ophthalmology Research: An international Journal (ISSN:&nbsp;2321–7227)</strong>&nbsp;aims to publish high quality papers (<a href="/index.php/OR/general-guideline-for-authors">Click here for Types of paper</a>) in all areas of ‘Ophthalmology research’. By not excluding papers based on novelty, this journal facilitates the research and wishes to publish papers as long as they are technically correct and scientifically motivated. The journal also encourages the submission of useful reports of negative results. This is a quality controlled, OPEN peer-reviewed, open-access INTERNATIONAL journal.</p> <p style="text-align: justify;">This is an open-access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author. This is in accordance with the BOAI definition of open access.</p> SCIENCEDOMAIN international en-US Ophthalmology Research: An International Journal 2321-7227 https://www.journalor.com/index.php/OR/article/view/519 <p class="pdq2pgselectionanchorcontainer" style="margin: 0in; text-align: justify; text-justify: inter-ideograph;"><strong><span style="font-size: 10.0pt;">Background:</span></strong><span style="font-size: 10.0pt;"> Electronic device use has become common among university students and may contribute to Computer Vision Syndrome (CVS), particularly in settings where screen exposure is prolonged and preventive practices are limited. </span></p> <p class="pdq2pgselectionanchorcontainer" style="margin: 0in; text-align: justify; text-justify: inter-ideograph;"><strong><span style="font-size: 10.0pt;">Aim:</span></strong><span style="font-size: 10.0pt;"> This study assessed awareness of electronic device use and associated vision-related problems among undergraduate medical students at Thamar University, Thamar Governorate, Yemen. </span></p> <p class="pdq2pgselectionanchorcontainer" style="margin: 0in; text-align: justify; text-justify: inter-ideograph;"><strong><span style="font-size: 10.0pt;">Methods:</span></strong><span style="font-size: 10.0pt;"> A descriptive cross-sectional study was conducted in December 2024 using a structured, self-administered questionnaire. Although 263 students participated, statistical analysis was performed for 208 respondents with complete data. Information was collected on sociodemographic characteristics, ocular history, patterns of digital device use, CVS-related symptoms and awareness. Data were analysed descriptively using SPSS version 22. </span></p> <p class="pdq2pgselectionanchorcontainer" style="margin: 0in; text-align: justify; text-justify: inter-ideograph;"><strong><span style="font-size: 10.0pt;">Results:</span></strong><span style="font-size: 10.0pt;"> Most participants were aged 20–24 years (73.6%), male (63.5%) and single (93.3%). Daily screen exposure was high, with 66.0% using devices for more than 5 hours. The most frequent symptoms were neck or shoulder pain (61.1%), eye strain (54.8%), headache (48.1%), light sensitivity (45.2%), blurred vision (33.2%), dry eyes (28.4%) and double vision (20.7%). Symptoms commonly began after more than 60 minutes of device use (57.7%) and improved with breaks (82.7%), while 38.0% reported interference with daily activities. Awareness was limited: 16.8% had heard of CVS, 2.4% had received preventive training and 17.8% knew the 20–20–20 rule. </span></p> <p class="pdq2pgselectionanchorcontainer" style="margin: 0in; text-align: justify; text-justify: inter-ideograph;"><strong><span style="font-size: 10.0pt;">Conclusion:</span></strong><span style="font-size: 10.0pt;"> CVS-related symptoms were common, while awareness and preventive practices remained insufficient. Structured awareness and ergonomic education are needed for medical students.</span></p> Nabil Ali Mohammed Saber Nabil Yahya Ali Othrop Mohammed Ali Ahmed Al-Ansi Abdulrahman H Al-Haifi Khawlah Waleed Mojli Ali Salman Al-Shami Copyright (c) 2026 Author(s). The licensee is the journal publisher. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 2026-07-09 2026-07-09 21 4 1 10 10.9734/or/2026/v21i4519