Results 61 to 70 of about 5,323 (241)

Diagnostic criteria for asthenic accommodative asthenopia in patients with computer vision syndrome [PDF]

Клиническая офтальмология, 2020
I.G. Ovechkin1, I.S. Gadzhiev2, A.A. Kozhukhov1, E.I. Belikova1 1Academy of Postgraduate Education of the Federal Scientific and Clinical Center  of the Federal Medical Biological Agency of Russian Federation, Moscow, Russian Federation ...
I.G. Ovechkin, I.S. Gadzhiev, Kozhukhov A.A, E.I. Belikova   +3 more
doaj  

Repeatability of push-up and push-down methods in the measure of accommodation amplitude [PDF]

, 2017
La mesura de l’amplitud d’acomodació és una pràctica molt habitual en optometria. La majoria de professionals coincideixen en que els mètodes push-up i push-down són els més utilitzats als exàmens visuals degut al fet que són mètodes ràpids, fàcils i ...
Duatis Alcoverro, Cinta
core  

Real-Time Non-Intrusive Assessment of Viewing Distance During Computer Use [PDF]

, 2016
Purpose: To develop and test the sensitivity of an ultrasound-based sensor to assess the viewing distance of visual display terminals operators in real-time conditions. Methods: A modified ultrasound sensor was attached to a computer display to assess
Argilés Sans, Marc, Cardona Torradeflot, Genís, Gispets Parcerisas, Joan, Morcego Seix, Bernardo, Pérez Cabré, Elisabet, Pérez Magrané, Ramon   +5 more
core   +2 more sources

The Prevalence of Computer Vision Syndrome Among Medical Students in Syria: A National Cross‐Sectional Study

Health Science Reports, Volume 9, Issue 4, April 2026.
ABSTRACT Background and Aims Computer vision syndrome (CVS) is a recognised health concern characterized by eye and vision‐related symptoms resulting from prolonged use of digital devices. Approximately 60 million people worldwide are affected by CVS, with almost one million new cases reported annually.
Hasan Nabil Alhouri, Ahmad Nabil Alhouri, Layth Aldayeh, Saja Hasan Al Asaad, Ziad Alashik, André Torbey, Hanaa Zahrawi, Douaa Mohammad Nazir Arrouk, Maria Badran, Malaz Shammout, Nour Zuhair Abdalaal, Abir Koudsi   +11 more
wiley   +1 more source

Immersive virtual reality assessments of working memory and psychomotor skills: A comparison between immersive and non‐immersive assessments

Journal of Neuropsychology, Volume 20, Issue 1, Page 115-131, March 2026.
Abstract Objective Immersive virtual reality (VR) enhances ecological validity and facilitates intuitive and ergonomic hand interactions for performing neuropsychological assessments. However, its comparability to traditional computerized methods remains unclear. This study investigates the convergent validity, user experience and usability of VR‐based
Panagiotis Kourtesis, Andrea Lizarraga, Sarah E. MacPherson   +2 more
wiley   +1 more source

Impact of uncorrected hyperopia on visual function and academic performance in preschool and school‐age children

Optometry and Vision Science, Volume 103, Issue 2, February 2026.
ABSTRACT Many children with a moderate amount of farsightedness do not see as well up close as children who are not farsighted, and they often have significantly more problems with near visual function (near visual acuity, stereoacuity, and accommodation), early literacy skills, reading, and attention.
Marjean Taylor Kulp, Elise B. Ciner, T. Rowan Candy, Gui‐shuang Ying, Colby Hall, Graham Quinn, Bruce Moore   +6 more
wiley   +1 more source

Combined Virtual Reality and Physical Activity Mitigates Mental Workload, Physical Exertion, and Simulator Sickness Compared to Virtual Reality Only in Older Adults

Alzheimer's &Dementia, Volume 21, Issue S6, December 2025.
Abstract Background Virtual reality (VR) interventions offer immersive cognitive training experiences for older adults; however, challenges such as simulator sickness and cognitive workload can impact participation and adherence. Integrating physical activity, such as stationary cycling, with VR may alleviate these challenges and improve engagement ...
Cynthia Angela Nyongesa, Kimberly Espejo, Marcella Barneclo, Emily Ager, Roshan Ravichandran, Adam Gardner, Joshua A Fierro, Yilei Dong, Joanna L Eckhardt, Edwin D Sookiassian, A. Lisette Isenberg, Ashwin Sakhare, Judy Pa   +12 more
wiley   +2 more sources

The Effect of Illumination on Positive Fusional Vergence

British and Irish Orthoptic Journal, 2023
Background: Positive fusional vergence (PFV) is vital in maintaining fusion in critical and continuous near tasks such as reading or performing digital screen tasks. This study investigated how PFV changed under various lighting conditions. Methods: This
Raisul Azam, Sourav Karmakar, Animesh Mondal, Gaurav Kumar Bhardwaj   +3 more
doaj   +1 more source

Colored filters improve exclusion of perceptual noise in visually symptomatic dyslexics [PDF]

, 2008
Dyslexic individuals have deficits in detecting visual stimuli embedded in high levels of perceptual noise. Here we show that visually symptomatic dyslexics, who otherwise had elevated contrast thresholds for discriminating symbols in visual noise, had ...
Nadia Northway, Velitchko Manahilov, William A. Simpson   +2 more
core   +1 more source

Asthenopia prevalence and vision impairment severity among students attending online classes in low-income areas of western China during the COVID-19 pandemic.

Hong Kong medical journal = Xianggang yi xue za zhi, 2023
INTRODUCTION This study explored the impact of online learning during the coronavirus disease 2019 (COVID-19) pandemic on asthenopia and vision impairment in students, with the aim of establishing a theoretical basis for preventive approaches to vision ...
Y. Ding, H. Guan, K. Du, Y. Zhang, Z. Wang, Y. Shi   +5 more
semanticscholar   +1 more source