Article
Orthopedics
Lourdes Fernandez-Seguin, Manuel Peinado-Asensio, Juan Antonio Diaz-Mancha, Maria-Dolores Cortes-Vega, Alberto Heredia-Rizo
Summary: This study aimed to assess the immediate and short-term effects of cervical spinal manipulation on the magnitude of near and distance exophoria in adults with asymptomatic exophoria. The study found that cervical spinal manipulation significantly reduced the magnitude of near exophoria, but had no significant effect on distance exophoria.
Article
Ophthalmology
Melinda Y. Chang, David G. Morrison, Gil Binenbaum, Gena Heidary, Rupal H. Trivedi, Jennifer A. Galvin, Stacy L. Pineles
Summary: Home-based and office-based vergence and accommodative therapies have their own advantages in treating convergence insufficiency (CI) in children and young adults, but the data are inconsistent. While some studies found that office-based therapy can improve motor outcomes, there is conflicting evidence on symptomatic relief. The effectiveness of home-based therapies remains inconclusive.
Article
Computer Science, Hardware & Architecture
Logan B. McIntosh, Guy M. Wallis, Philip M. Grove
Summary: This study aims to develop new tests for binocular visual processes and compare the variability in threshold performance within each test across a large sample.
Article
Biology
Lukas Klimmasch, Johann Schneider, Alexander Lelais, Maria Fronius, Bertram Emil Shi, Jochen Triesch
Summary: The computational model presented is based on the Active Efficient Coding framework and is capable of developing disparity tuned neurons and precise eye control under normal rearing conditions, as well as reproducing experimental results under altered conditions. The model predicts how altered rearing conditions affect the learning of precise eye control, and also reveals a surprising effect on the statistics of orientation tuning in visual cortical neurons when vergence control is impaired.
Article
Multidisciplinary Sciences
Concepcion De-Hita-Cantalejo, Angel Garcia-Perez, Jose-Maria Sanchez-Gonzalez, Raul Capote-Puente, Maria Carmen Sanchez-Gonzalez
Summary: The study assessed computer vision syndrome (CVS) in preteens using an adult-validated questionnaire and found significant differences in convergence and vergence responses between mild and severe CVS groups.
ANNALS OF THE NEW YORK ACADEMY OF SCIENCES
(2021)
Article
Multidisciplinary Sciences
Tara L. Alvarez, Mitchell Scheiman, Cristian Morales, Suril Gohel, Ayushi Sangoi, Elio M. Santos, Chang Yaramothu, John Vito d'Antonio-Bertagnolli, Xiaobo Li, Bharat B. Biswal
Summary: Convergence insufficiency is a common binocular vision problem that causes symptoms such as blurred vision and headaches during prolonged near work. The study found significant neural differences between CI patients and controls in both fast and slow fusional systems.
SCIENTIFIC REPORTS
(2021)
Article
Medicine, General & Internal
Concepcion De-Hita-Cantalejo, Jose-Maria Sanchez-Gonzalez, Carmen Silva-Viguera, Maria Carmen Sanchez-Gonzalez
Summary: This study aimed to compare computer visual syndrome (CVS) in tweenagers who use digital devices only for playing games versus those who use them for studying as well. The results showed that the high-demand digital device group had lower scores in all item groups. Additionally, participants in the high-demand group showed a tendency towards exophoria and had significant differences in distance and near vision.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Neurosciences
Fuhao Zheng, Fang Hou, Ruru Chen, Jianhui Mei, Pingping Huang, Bingzhen Chen, Yuwen Wang
Summary: The study found that visual fatigue is closely related to binocular accommodative facility and binocular contrast sensitivity, but not to vergence facility. In addition, binocular accommodative facility is related to contrast sensitivity at high spatial frequencies.
FRONTIERS IN NEUROSCIENCE
(2021)
Article
Ophthalmology
Alejandra Iurescia, Rafael Iribarren, Carla Lanca, Andrzej Grzybowski
Summary: NSAVA was found to be a common cause of vision problems in children attending a paediatric ophthalmology clinic. Children who self-reported reading problems were more likely to have accommodative infacility.
ACTA OPHTHALMOLOGICA
(2023)
Article
Ophthalmology
Jiakai Lyu, Cherlyn J. Ng, Seung Pil Bang, Geunyoung Yoon
Summary: The study investigated how optical conditions of the eyes affect accommodative responses to different convergence, finding that extending the depth of focus could weaken the control of the screen on accommodation, resulting in a more natural vergence-accommodation relationship.
Article
Ophthalmology
Ayushi Sangoi, Mitchell Scheiman, Chang Yaramothu, Elio M. Santos, Suril Gohel, Tara L. Alvarez
Summary: The study aimed to compare phoria adaptation changes between young adult binocularly normal controls and participants with symptomatic convergence insufficiency. Results showed significant differences in phoria adaptation rates and magnitudes at baseline, with OBVAT significantly improving both base-out and base-in phoria adaptation rates and magnitudes at near compared to OBPT.
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2021)
Article
Ophthalmology
Shijin Li, Angcang Tang, Bi Yang, Jianglan Wang, Longqian Liu
Summary: This study compared the effectiveness of virtual reality-based vision therapy and office-based vergence/accommodative therapy in young adults with convergence insufficiency or accommodative dysfunction. The results showed that virtual reality-based vision therapy significantly improved binocular vision functions and symptoms in patients, suggesting its effectiveness as a new optional or additional treatment for these conditions.
Article
Ophthalmology
Angela M. Chen, Tawna L. Roberts, Susan A. Cotter, Marjean T. Kulp, Loraine T. Sinnott, Eric J. Borsting, Yin C. Tea, Lisa A. Jones-Jordan, Richard Hertle, G. Lynn Mitchell, L. Eugene Arnold, Christopher Chase, Mitchell M. Scheiman
Summary: Office-based vergence/accommodative therapy is effective in improving accommodative function in children with symptomatic convergence insufficiency and coexisting accommodative dysfunction. The treatment group showed significantly greater improvements in accommodative amplitude and accommodative facility compared to the placebo group. The rate of improvement in amplitude and facility was faster in the early treatment period than in the later period.
OPHTHALMIC AND PHYSIOLOGICAL OPTICS
(2021)
Article
Ophthalmology
Payam Nabovati, Mehdi Khabazkhoob, Faezeh Fayaz, Sattar Rajabi, Amir Asharlous
Summary: Diabetes significantly affects accommodative and binocular vision performance in young subjects, and there is a significant correlation between these visual impairments and the severity of diabetes.
OPHTHALMIC AND PHYSIOLOGICAL OPTICS
(2022)
Article
Ophthalmology
Chitra Padavettan, Shruti Nishanth, S. Vidhyalakshmi, Nishanth Madhivanan, Nivean Madhivanan
Summary: The study found that reading on a smartphone for 30 minutes has a significant impact on both accommodative and vergence components for near tasks, with a greater effect on vergence parameters. Prolonged exposure to digital screens at near distances may result in visual quality dysfunction.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2021)