Vergence and accommodation have been critical areas of investigation in those with mild traumatic brain injury (mTBI). In this mini-review, the major laboratory studies in the area using objective assessment of vergence and accommodative dynamics in this population are discussed. These include the basic findings, their diagnostic and therapeutic implications, potential study limitations, and suggested future research directions. All studies provided important new information, and insights, into the area. There were two key outcomes of the reviewed studies common to both the vergence and accommodative systems in those with mTBI. First, most dynamic parameter's responsivity at baseline was abnormal: it was slowed, delayed, and/or inaccurate as compared to the normative control data. Second, most of the abnormal dynamic parameter's responsivity could be remediated, at least in part, following a short period of oculomotor-based vision therapy, thus demonstrating considerable residual neuroplasticity in the damaged, human brain.
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http://dx.doi.org/10.1016/j.visres.2021.107967 | DOI Listing |
Vision (Basel)
December 2024
Department of Optometry and Vision Science, Faculty of Science and Technology, University of Latvia, LV-1004 Riga, Latvia.
Virtual reality (VR) can challenge the visual system, leading to temporary oculomotor changes, though the degree of change varies among individuals. While the vergence and accommodation system plays a crucial role in VR perception, it remains unclear whether individuals whose visual functions fall outside clinical norms experience larger changes. Thus, our study aimed to investigate whether changes in vergence and accommodation responses following VR gameplay differ between individuals with and without non-strabismic binocular and accommodative disorders.
View Article and Find Full Text PDFClin Exp Optom
December 2024
Portuguese Esports Federation, Lisboa, Portugal.
Clinical Relevance: Assessing visual and cognitive performance in athletes is important for optimising training strategies and preventing visual strain in both esports and traditional sports.
Background: This study compared visual acuity, refractive error, binocular functions, and cognitive perception measures between esports and soccer players to optimise visual performance strategies.
Methods: Twenty-eight male esports athletes and 38 male soccer players were assessed.
Ophthalmic Physiol Opt
January 2025
School of Optometry, Indiana University, Bloomington, Indiana, USA.
Purpose: To evaluate the myopic and hyperopic defocus delivered to the retina by a dual focus (DF) myopia control contact lens when myopia exceeds 6.00 D.
Methods: Individuals with high myopia were fitted bilaterally with high-powered DF lenses containing power profiles matching a Coopervision MiSight 1 day contact lens (omafilcon A) and a Coopervision Proclear 1 day single vision (SV) lens.
Strabismus
November 2024
Eye Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
: To compare the effect of combinational office-based and home-based orthoptic training regimens with part-time patching in participants with intermittent exotropia. : In a randomized clinical trial study, patients with a diagnosis of IXT were involved and randomly assigned to three groups. Patients in the control group were followed with part-time patch therapy.
View Article and Find Full Text PDFInt J Ophthalmol
November 2024
Programme of Optometry and Vision Science, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz 50300, Kuala Lumpur, Malaysia.
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