keyword
https://read.qxmd.com/read/38537080/contributions-of-cerebral-white-matter-hyperintensities-age-and-pedal-perception-to-postural-sway-in-people-living-with-hiv
#1
JOURNAL ARTICLE
Edith V Sullivan, Natalie M Zahr, Qingyu Zhao, Kilian M Pohl, Stephanie A Sassoon, Adolf Pfefferbaum
OBJECTIVE: With aging, people living with HIV (PLWH) have diminishing postural stability that increases liability for falls. Factors and neuromechanisms contributing to instability are incompletely known. Brain white matter abnormalities seen as hyperintense (WMH) signals have been considered to underlie instability in normal aging and PLWH. We questioned whether sway-WMH relations endured after accounting for potentially relevant demographic, physiological, and HIV-related variables...
March 27, 2024: AIDS
https://read.qxmd.com/read/38537067/conventional-epithelial-off-corneal-crosslinking-in-patients-with-progressive-keratoconus-10-year-outcomes
#2
JOURNAL ARTICLE
Jérémy Bordais, Myriam Cassagne, David Touboul, Valentine Saunier, Jacqueline Butterworth, François Malecaze, Vincent Soler, Pierre Fournié
PURPOSE: Corneal crosslinking (CXL) is the standard treatment of progressive keratoconus (KC). We evaluated the safety and 10-year outcomes of conventional "epithelial-off" CXL for progressive KC for the first time in a cohort in France. METHODS: We conducted a retrospective review of patients undergoing conventional CXL (Dresden protocol) in our tertiary ophthalmology department from 2006 to 2011 with 10-year follow-up. The primary outcome was change in preoperative versus postoperative keratometry measured by maximum keratometry (Kmax), steep keratometry (K2), flat keratometry (K1), mean keratometry (Km), and topographic cylinder...
March 27, 2024: Cornea
https://read.qxmd.com/read/38537038/novel-optical-coherence-tomography-findings-in-a-patient-with-methanol-toxicity-a-case-report
#3
Burcu Işık, Mehmet Giray Ersoz, Mehmet Dokur, Ismail Yıldız, Mehmet Sami Islamoğlu
We report a case of acute methanol toxicity with unique optical coherence tomography findings. A 56-year-old man was referred to our ophthalmology clinic with a history of handmade vodka consumption and vision loss. On ophthalmologic examination, his vision was 20/100 in his right eye and 20/200 in his left eye. Bilateral mild optic disk hyperemia was detected on fundus examination. Because of the severity of systemic symptoms in such cases, it is very difficult to include optical coherence tomography in the ophthalmologic examination...
2024: Arquivos Brasileiros de Oftalmologia
https://read.qxmd.com/read/38536978/bilateral-retinal-venous-occlusion-in-atypical-hemolytic-uremic-syndrome-due-to-complement-factor-h-mutation
#4
JOURNAL ARTICLE
Saban Gonul, Serhat Eker
PURPOSE: Atypical hemolytic uremic syndrome (aHUS) is a rare progressive thrombotic microangiopathy caused by overactivation in the alternative complement pathway. A wide spectrum of environmental triggers, such as viruses, vaccination, drugs, pregnancy, neoplasms, transplant, and autoimmune diseases can cause aHUS in genetically susceptible individuals. In this report, the diagnosis and treatment process of aHUS and bilateral retinal venous occlusion (RVO) will be presented. METHODS: Single-case, retrospective management of ophthalmological and systemic manifestations...
March 27, 2024: Ocular Immunology and Inflammation
https://read.qxmd.com/read/38536709/peripheral-hypertrophic-subepithelial-corneal-opacification-role-of-tear-secretion-medication-and-systemic-diseases
#5
JOURNAL ARTICLE
Jana C Riedl, Aminat Misirkhanova, Joanna Wasielica-Poslednik, Alexander K Schuster, Irene Schmidtmann, Manfred E Beutel, Norbert Pfeiffer, Adrian Gericke
BACKGROUND: Peripheral hypertrophic subepithelial corneal opacification (PHSCO) is a corneal disease that may severely affect vision. The major goal of this study was to test the hypothesis that tear secretion, medication and systemic diseases are associated with PHSCO. METHODS: This is a retrospective, case-control study conducted at the Department of Ophthalmology, University Medical Center of the Johannes Gutenberg University Mainz. We analysed medical records of patients diagnosed with PHSCO...
March 27, 2024: Acta Ophthalmologica
https://read.qxmd.com/read/38536690/a-task-guided-implicitly-searched-and-metainitialized-deep-model-for-image-fusion
#6
JOURNAL ARTICLE
Risheng Liu, Zhu Liu, Jinyuan Liu, Xin Fan, Zhongxuan Luo
Image fusion plays a key role in a variety of multi-sensor-based vision systems, especially for enhancing visual quality and/or extracting aggregated features for perception. However, most existing methods just consider image fusion as an individual task, thus ignoring its underlying relationship with these downstream vision problems. Furthermore, designing proper fusion architectures often requires huge engineering labor. It also lacks mechanisms to improve the flexibility and generalization ability of current fusion approaches...
March 27, 2024: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://read.qxmd.com/read/38536689/unsupervised-illumination-adaptation-for-low-light-vision
#7
JOURNAL ARTICLE
Wenjing Wang, Rundong Luo, Wenhan Yang, Jiaying Liu
No abstract text is available yet for this article.
March 27, 2024: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://read.qxmd.com/read/38536688/development-and-evaluation-of-a-learning-based-model-for-real-time-haptic-texture-rendering
#8
JOURNAL ARTICLE
Negin Heravi, Heather Culbertson, Allison M Okamura, Jeannette Bohg
Current Virtual Reality (VR) environments lack the haptic signals that humans experience during real-life interactions, such as the sensation of texture during lateral movement on a surface. Adding realistic haptic textures to VR environments requires a model that generalizes to variations of a user's interaction and to the wide variety of existing textures in the world. Current methodologies for haptic texture rendering exist, but they usually develop one model per texture, resulting in low scalability. We present a deep learning-based action-conditional model for haptic texture rendering and evaluate its perceptual performance in rendering realistic texture vibrations through a multi-part human user study...
March 27, 2024: IEEE Transactions on Haptics
https://read.qxmd.com/read/38536184/binocular-luster-elicited-by-isoluminant-chromatic-stimuli-relies-on-mechanisms-similar-to-those-in-the-achromatic-case
#9
JOURNAL ARTICLE
Gunnar Wendt, Franz Faul
The phenomenon of binocular luster can be evoked by simple dichoptic center-surround stimuli showing a luminance contrast difference between the eyes. Previous findings support the idea that this phenomenon is mediated by a low-level conflict mechanism that integrates the monocular signals from different types of contrast detector cells. Also, isoluminant stimuli with different chromatic contrasts between eyes can trigger sensations of luster. Here, we investigate whether the lustrous impression in such purely chromatic stimuli depends on interocular contrast differences and in particular on interocular contrast polarity pairings in a similar way as in the achromatic case...
March 1, 2024: Journal of Vision
https://read.qxmd.com/read/38536170/reduced-aqueous-humor-outflow-pathway-arborization-in-childhood-glaucoma-eyes
#10
JOURNAL ARTICLE
Shikha Gupta, Xiaowei Zhang, Arnav Panigrahi, Shakha, Raymond Fang, Clemens A Strohmaier, Hao F Zhang, Robert N Weinreb, Viney Gupta, Alex S Huang
PURPOSE: To compare aqueous humor outflow (AHO) pathway patterns between eyes of childhood glaucoma patients and non-glaucomatous patients receiving cataract surgery. METHODS: Aqueous angiography was performed in childhood glaucoma eyes (n = 5) receiving glaucoma surgery and in pediatric (n = 1) and healthy adult (n = 5) eyes receiving cataract surgery. Indocyanine green (0.4%) was introduced into the anterior chamber, and AHO was imaged using an angiographic camera (SPECTRALIS HRA+OCT with Flex Module)...
March 1, 2024: Translational Vision Science & Technology
https://read.qxmd.com/read/38536128/drug-induced-liver-injury-during-a-glaucoma-neuroprotection-clinical-trial
#11
JOURNAL ARTICLE
Aakriti Garg Shukla, George A Cioffi, Jeffrey M Liebmann
There are several ongoing, worldwide clinical trials with a cumulative target enrollment of over 1300 participants on the role of nicotinamide (a specific form of vitamin B3) as a therapeutic neuroprotective treatment for glaucoma. We describe a serious adverse event of drug-induced liver injury (DILI) likely related to the use of 3 grams/day nicotinamide in a glaucoma clinical trial (clinicaltrials.gov identifier: NCT05695027) based in the United States. This report is important to share with the medical community, as other participants in glaucoma nicotinamide trials globally may have similar adverse events and many patients are using nicotinamide as a health supplement without medical supervision...
March 28, 2024: Journal of Glaucoma
https://read.qxmd.com/read/38535978/comment-on-incidence-and-factors-for-pseudoaccommodation-after-monofocal-lens-implantation-the-monofocal-extended-range-of-vision-study
#12
JOURNAL ARTICLE
Tushar Agrawal, O K Radhakrishnan, Jaya Agrawal, Shishir Agrawal
No abstract text is available yet for this article.
March 26, 2024: Journal of Cataract and Refractive Surgery
https://read.qxmd.com/read/38535974/are-rehabilitation-professionals-familiar-with-visual-impairments-a-survey-of-professional-orders-in-quebec-canada
#13
JOURNAL ARTICLE
Joseph P Nemargut, Geneviève Boucher-Costi, Angel Ta, Laurie St-Amant
SIGNIFICANCE: The number of patients with mild to moderate visual impairments (MVIs) is increasing as the average age of the population increases. Thus, it is important to understand the training and resources available for rehabilitation practitioners to provide adequate care to these patients within their scope of practice. PURPOSE: This study explores rehabilitation professionals' perceptions of their competence in screening and treating patients with MVI, and identifying the tools and resources needed to increase these professionals' comfort level in managing these patients...
March 18, 2024: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://read.qxmd.com/read/38535942/ambient-air-pollution-and-vision-disorder-a-systematic-review-and-meta-analysis
#14
REVIEW
Zhuo Han, Chao Zhao, Yuhua Li, Meng Xiao, Yuewei Yang, Yizhuo Zhao, Chunyu Liu, Juan Liu, Penghui Li
The effects of air pollution on physical health are well recognized, with many studies revealing air pollution's effects on vision disorder, yet no relationship has been established. Therefore, a meta-analysis was carried out in this study to investigate the connection between vision disorder and ambient particles (diameter ≤ 2.5 µm (PM2.5 ), diameter ≤ 10 µm (PM10 )) and gaseous pollutants (nitrogen dioxide (NO2 ), sulfur dioxide (SO2 ), carbon monoxide (CO), Ozone (O3 )). Twelve relevant studies published by 26 February 2024 were identified in three databases...
March 10, 2024: Toxics
https://read.qxmd.com/read/38535765/transepithelial-photorefractive-keratectomy-review
#15
REVIEW
Christopher Way, Mohamed Gamal Elghobaier, Mayank A Nanavaty
The type and nature of refractive surgery procedures has greatly increased over the past few decades, allowing for almost all patient populations to be treated to extremely high satisfaction. Conventional photorefractive keratectomy involves the removal of the corneal epithelium through mechanical debridement or dilute alcohol instillation. An improvement to this method utilises laser epithelial removal in a single-step process termed transepithelial photorefractive keratectomy (transPRK). We explore the history of transPRK from its early adoption as a two-step process, identify different transPRK platforms from major manufacturers, and describe the role of transPRK in the refractive surgery armamentarium...
March 21, 2024: Vision
https://read.qxmd.com/read/38535764/when-it-s-not-worn-on-the-face-trait-anxiety-and-attention-to-neutral-faces-semantically-linked-to-threat
#16
JOURNAL ARTICLE
Kim M Curby, Jessica A Collins
While our direct observations of the features or behaviours of the stimuli around us tell us much about them (e.g., should they be feared?), the origin of much of our knowledge is often untethered from directly observable properties (e.g., through what we have learned or have been told about them, or "semantic knowledge"). Here, we ask whether otherwise neutral visual stimuli that participants learn to associate with emotional qualities in the lab cause the stimuli to be attended in a similar way as stimuli whose emotional qualities can be discerned through their visual properties...
March 19, 2024: Vision
https://read.qxmd.com/read/38535763/automated-analysis-pipeline-for-extracting-saccade-pupil-and-blink-parameters-using-video-based-eye-tracking
#17
JOURNAL ARTICLE
Brian C Coe, Jeff Huang, Donald C Brien, Brian J White, Rachel Yep, Douglas P Munoz
The tremendous increase in the use of video-based eye tracking has made it possible to collect eye tracking data from thousands of participants. The traditional procedures for the manual detection and classification of saccades and for trial categorization (e.g., correct vs. incorrect) are not viable for the large datasets being collected. Additionally, video-based eye trackers allow for the analysis of pupil responses and blink behaviors. Here, we present a detailed description of our pipeline for collecting, storing, and cleaning data, as well as for organizing participant codes, which are fairly lab-specific but nonetheless, are important precursory steps in establishing standardized pipelines...
March 18, 2024: Vision
https://read.qxmd.com/read/38535762/associations-between-autistic-like-traits-and-imagery-ability
#18
JOURNAL ARTICLE
Takao Hatakeyama
This article examines empirical associations between qualities of the imagination, mental imagery, and cognitive abilities with special reference to autism. This study is the first to explore the empirical relationships between autistic-like traits and tests of imagery differences. Imaginative impairments and distinctive sensory characteristics in individuals with autism spectrum disorder (ASD) should be reflected in their interactions with mental imagery. However, the relationship between ASD and imaging traits remains unclear...
March 12, 2024: Vision
https://read.qxmd.com/read/38535761/abstracts-of-scottish-vision-group-2023-meeting
#19
Paul George Lovell, Rebecca J Sharman
Scottish Vision Group has become a yearly event for vision scientists based in Scotland since its inception in 2001. Each year, the conference is hosted at a different location and organised by a different team. The 2023 SVG meeting was hosted in the city of Dundee by Abertay University. Delegates travelled from the United Kingdom, Europe and beyond. The meeting started with a roundtable panel discussion sponsored by Meta Reality Labs. The roundtable, titled The Past, Present and Future of Visual Search, was organised and presented by Árni Kristjánsson (Iceland), Ioan Smart (Abertay) and Ian Thornton (Malta)...
March 11, 2024: Vision
https://read.qxmd.com/read/38535760/daytime-changes-in-tear-film-parameters-and-visual-acuity-with-new-generation-daily-disposable-silicone-hydrogel-contact-lenses-a-double-masked-study-in-symptomatic-subjects
#20
JOURNAL ARTICLE
Rute J Macedo-de-Araújo, Laura Rico-Del-Viejo, Vicente Martin-Montañez, António Queirós, José M González-Méijome
This prospective, double-masked, contralateral study aimed to analyze and compare daytime changes in pre-lens tear film (PLTF) stability and optical quality in symptomatic subjects wearing two contact lenses (CL). A secondary goal was to assess the performance of the PLTF by using dynamic topography techniques and analyzing surface asymmetry and irregularity indexes (SAI and SRI, respectively). Measurements were conducted on 20 symptomatic subjects (OSDI score > 13). Participants were fitted contralaterally and randomly with spherical Delefilcon A and Stenfilcon A CLs and underwent a series of measurements over 3 consecutive days: three in the morning (after 1-2 h of CL wear) and three in the afternoon (after 7-9 h of CL wear)...
March 5, 2024: Vision
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