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Optometry and Vision Science: Official Publication of the American Academy of Optometry

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https://www.readbyqxmd.com/read/29787492/dot-motion-perception-in-young-adult-emmetropes-and-myopes
#1
Hui-Ying Kuo, David A Atchison, Katrina Leanne Schmid
SIGNIFICANCE: Central motion perception, as assessed by minimum displacement detection, was reduced in highly myopic eyes. Peripheral motion detection may be influenced by myopia, particularly in the inferior-nasal retina. PURPOSE: Motion discrimination is a complex visual task processed mainly via the magnocellular pathway. We investigated whether it is affected in myopia. METHODS: Ninety young adults aged 18 to 28 years participated: 30 emmetropes (spherical equivalent refractions +1...
May 21, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29787491/detecting-cheating-when-testing-vision-variability-in-acuity-measures-reveals-misrepresentation
#2
Henrike Rianne Joanna Cornelie Ravensbergen, Belle I N A van Bree, Douwe M Broekens, David Lindsay Mann
SIGNIFICANCE: In certain scenarios, it is advantageous to misrepresent one's ability and "cheat" on vision tests. Our findings suggest that increased variability when testing visual acuity holds promise as a novel means to help detect this cheating and may generalize to other subjective tests of visual function. PURPOSE: People who cheat on vision tests generally do so to make their vision appear better than it actually is (e.g., for occupational or driving purposes)...
May 21, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29787490/clinical-performance-of-a-new-bitangential-mini-scleral-lens
#3
Henny M Otten, Bart J J J van der Linden, Esther-Simone Visser
SIGNIFICANCE: New bitangential mini-scleral lens designs provide a highly precise fit, follow the scleral shape, are comfortable to wear, and can correct residual astigmatism. This new scleral lens design complements the arsenal of medical contact lenses available to eye care practitioners. PURPOSE: The aim of this study was to evaluate the subjective and objective performance of a new mini-scleral lens design with a bitangential periphery. METHODS: In this observational study, data were collected for up to 15 months (median, 84 days; interquartile range, 76 days) from the left eyes of 133 patients fitted with this newly designed lens...
May 21, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29787489/case-report-optical-coherence-tomography-angiography-in-morning-glory-disc-anomaly
#4
Francesco Romano, Chiara Giuffrè, Alessandro Arrigo, Eleonora Corbelli, Maurizio Battaglia Parodi, Francesco Bandello
SIGNIFICANCE: Morning glory disc anomaly is a congenital abnormality of the optic disc. Optical coherence tomography angiography shows vascular rarefaction of the superficial and deep capillary plexuses and increased vascularity of the radial peripapillary capillary plexus. We hypothesize that this congestion represents a compensatory mechanism to an abnormal vasculogenesis. PURPOSE: The aim of this study was to describe the optic disc vascular alterations occurring at choriocapillaris and retinal vascular plexuses in a patient affected by bilateral morning glory disc anomaly with optical coherence tomography angiography...
May 21, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29787488/effects-of-scleral-lens-tear-clearance-on-corneal-edema-and-post-lens-tear-dynamics-a-pilot-study
#5
Bo Tan, Yixiu Zhou, Tiffany L Yuen, Kristina Lin, Langis Michaud, Meng C Lin
SIGNIFICANCE: The present study with small-diameter scleral lenses (SLs) revealed that post-lens tear thickness (PoLTT) was significantly associated with post-lens tear mixing, but not with central corneal edema, after short-term SL wear. PURPOSE: The aim of this study was to investigate the influence of SL tear clearance (PoLTT) on central corneal thickness and post-lens tear dynamics during 5-hour lens wear. METHODS: Neophytes with no active ocular disease were fitted bilaterally with SLs (hofocon A; 15...
May 21, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29787487/case-report-hydroxychloroquine-retinopathy
#6
Mohab Eldeeb, Errol W Chan, Amer Omar
SIGNIFICANCE: Hydroxychloroquine retinopathy causes irreversible central visual loss and can progress despite medication discontinuation. Appropriate dosing and recognition of early disease are important to minimize adverse visual sequelae. In 2016, the American Academy of Ophthalmology updated its 2011 recommendations for dosing, screening, and monitoring of hydroxychloroquine retinopathy. PURPOSE: The aim of this study was to report a case of hydroxychloroquine retinopathy in a patient who developed toxicity on a dose meeting safety thresholds from the 2011 guidelines (i...
May 21, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29787486/a-random-dot-computer-video-game-improves-stereopsis
#7
Juan A Portela-Camino, Santiago Martín-González, Javier Ruiz-Alcocer, Igor Illarramendi-Mendicute, Rafaela Garrido-Mercado
SIGNIFICANCE: Currently, treatments for amblyopia are occlusion or penalization of the stronger fellow eye. Fewer than 30% of patients improve stereoacuity using these treatments. In order to improve these outcomes, this group proposes a treatment to stimulate the stereoacuity through perceptual learning in a game format for use at home. PURPOSE: The aim of this study was to determine whether perceptual learning with random dot stimuli (RDS) in the form of a computer video game improves stereopsis in patients with a history of amblyopia...
May 21, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29787485/the-effect-of-contact-lens-wear-on-the-cellular-morphology-of-the-lid-wiper-area
#8
Waleed M Alghamdi, Maria Markoulli, Eric B Papas
SIGNIFICANCE: This cross-sectional study presented a link between contact lens wear and changes on the cellular morphology characteristics of the lid wiper (LW) epithelium, which was not visible by LW staining. PURPOSE: The aim of this study was to establish if the duration of contact lens (CL) wear affects the cellular morphology of the LW epithelium. METHODS: This was a cross-sectional study of 100 individuals with different exposures to CL wear: short, moderate, and long experience of CL wear; previous CL wearers; and nonwearers (NWs) as controls...
May 21, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29787484/post-therapy-functional-magnetic-resonance-imaging-in-adults-with-symptomatic-convergence-insufficiency
#9
Douglas E Widmer, Tamara S Oechslin, Chirag Limbachia, Marjean Taylor Kulp, Andrew J Toole, Nasser H Kashou, Nicklaus Fogt
SIGNIFICANCE: Prior studies have demonstrated the effectiveness of vergence-accommodative therapy in the treatment of convergence insufficiency (CI). These results show the changes in brain activation following therapy through the use of functional magnetic resonance imaging (fMRI). PURPOSE: The purpose of this study was to investigate changes in brain activation following office-based vergence-accommodative therapy versus placebo therapy for CI using the blood oxygenation level-dependent signal from fMRI...
May 21, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29781873/case-report-use-of-sports-and-performance-vision-training-to-benefit-a-low-vision-patient-s-function
#10
Daniel M Laby
SIGNIFICANCE: Despite our inability to attenuate the course of many ocular diseases that can ultimately lead to loss or significantly decreased visual function, this report describes a potential technique to aid such patients in maximizing the use of the vision that remains. PURPOSE: The aim of this study was to demonstrate the applicability of utilizing sports vision training to improve objective and subjective visuomotor function in a low-vision patient. CASE REPORT: A 37-year-old woman with Usher syndrome presented with reduced central visual acuity and visual field...
May 17, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29683989/can-the-farnsworth-d15-color-vision-test-be-defeated-through-practice
#11
Jason S Ng, Sophia C Liem
SIGNIFICANCE: This study suggests that it is possible for some patients with severe red-green color vision deficiency to do perfectly on the Farnsworth D15 test after practicing it. PURPOSE: The Farnsworth D15 is a commonly used test to qualify people for certain occupations. For patients with color vision deficiency, there may be high motivation to try to pass the test through practice to gain entry into a particular occupation. There is no evidence in the literature on whether it is possible for patients to learn to pass the D15 test through practice...
April 20, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29683988/case-report-ocular-myasthenia-gravis-associated-with-in-vitro-fertilization-procedures
#12
Yung Ju Yoo, Sang Beom Han, Hee Kyung Yang, Jeong-Min Hwang
SIGNIFICANCE: Ocular myasthenia gravis is a localized form of myasthenia gravis, which is a postsynaptic disorder of the neuromuscular junction that causes fluctuating weakness of extraocular muscles resulting from autoimmune mechanisms. In women with myasthenia, changes in sex hormone levels and administration of corticosteroids can trigger or worsen symptoms of myasthenia gravis. PURPOSE: To describe a case of seronegative ocular myasthenia gravis whose first symptom appeared a day after in vitro fertilization procedure...
April 20, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29683986/people-with-hemianopia-report-difficulty-with-tv-computer-cinema-use-and-photography
#13
Francisco M Costela, Sarah S Sheldon, Bethany Walker, Russell L Woods
SIGNIFICANCE: Our survey found that participants with hemianopia report more difficulties watching video in various formats, including television (TV), on computers, and in a movie theater, compared with participants with normal vision (NV). These reported difficulties were not as marked as those reported by people with central vision loss. PURPOSE: The aim of this study was to survey the viewing experience (e.g., frequency, difficulty) of viewing video on TV, computers and portable visual display devices, and at the cinema of people with hemianopia and NV...
April 20, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29683984/effects-of-progressive-addition-lens-wear-on-digital-work-in-pre-presbyopes
#14
Chea-Su Kee, Tsz Wing Leung, Ka-Hung Kan, Christie Hang-I Lam
SIGNIFICANCE: Growing popularity of handheld digital devices imposes significant challenges to our visual system and clinical management. This study aimed to determine the effects of lens design on parameters that may influence the refractive management of pre-presbyopic adult computer users. PURPOSE: To determine the effects of wearing conventional single-vision lenses (SVL) versus progressive addition lenses (PAL) on the working distance and refractive status...
April 20, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29683982/does-central-vision-loss-impair-visual-search-performance-of-adults-more-than-children
#15
PremNandhini Satgunam, Gang Luo
SIGNIFICANCE: In general, young adults with normal vision show the best visual search performance when compared with children and older adults. Through our study, we show that this trend is not observed in individuals with vision impairment. An interaction effect of vision impairment with visual development and aging is observed. PURPOSE: Performance in many visual tasks typically shows improvement with age until young adulthood and then declines with aging. Using a visual search task, this study investigated whether a similar age effect on performance is present in people with central vision loss...
April 20, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29715259/taking-stock-tell-us-what-you-think
#16
Michael D Twa
No abstract text is available yet for this article.
May 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29683987/case-report-linezolid-optic-neuropathy-and-proposed-evidenced-based-screening-recommendation
#17
Sean P Dempsey, Amy Sickman, William Scott Slagle
SIGNIFICANCE: This case illustrates a novel screening protocol for linezolid-induced toxic optic neuropathy. PURPOSE: To present a case report and analysis of linezolid-induced optic neuropathies in adult patients to develop screening recommendations. CASE REPORT: A case report of optic neuropathy from extended use of linezolid illustrates its potential effects on vision. We conduct a retrospective analysis of 39 reported cases to derive a recommended screening protocol for linezolid-induced toxic optic neuropathy in adult patients...
May 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29683985/accommodative-behavior-of-young-eyes-wearing-multifocal-contact-lenses
#18
Basal H Altoaimi, Meznah S Almutairi, Pete S Kollbaum, Arthur Bradley
SIGNIFICANCE: The effectiveness of multifocal contact lenses (MFCLs) at slowing myopia progression may hinge on the accommodative behavior of young eyes fit with these presbyopic style lenses. Can they remove hyperopic defocus? Convergence accommodation as well as pupil size and the zonal geometry are likely to contribute to the final accommodative responses. PURPOSE: The aim of this study was to examine the accommodation behavior of young adult eyes wearing MFCLs and the effectiveness of these MFCLs at removing foveal hyperopic defocus when viewing near targets binocularly...
May 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29683983/fluorescein-angiography-indications-changes-after-optical-coherence-tomography-and-antiangiogenics
#19
Sonia C Labrador-Velandia, María R Sanabria
SIGNIFICANCE: The present study provides quantitative data regarding the change of indications of fluorescein angiography in a tertiary hospital. Exhaustively compiled data over more than 10 years concerning all the angiographic studies including diagnosis, first-visit/follow-up, possible relation with antiangiogenics approval, and optic coherence tomography (OCT) are presented. PURPOSE: The aim of this study was to determine the frequency and indications of fluorescein angiography before and after OCT and anti-vascular endothelial growth factor (anti-VEGF) treatment implantation...
May 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29608543/deep-learning-and-clinical-decision-support
#20
Michael D Twa
No abstract text is available yet for this article.
April 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
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