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Auteur Nicole Christie Ross
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Ajouter le résultat dans votre panier Affiner la rechercheChanges in the properties of the preferred retinal locus with eccentric viewing training / Shirin E. Hassan in OVS : Optometry & Vision Science, vol. 96, 02 (Février 2019)
[article]
in OVS : Optometry & Vision Science > vol. 96, 02 (Février 2019) . - p.79-89
Titre : Changes in the properties of the preferred retinal locus with eccentric viewing training Type de document : article de périodique Auteurs : Shirin E. Hassan, Auteur ; Nicole Christie Ross, Auteur ; Robert Massof, Auteur Année de publication : 2019 Article en page(s) : p.79-89 Langues : Anglais (eng) Langues originales : Anglais (eng) Descripteurs (mots clés) : [Thésaurus Mesh]:T:Troubles de la vision:Troubles de la vision / rééducation et réadaptation
[Thésaurus Mesh]Essai contrôlé randomisé
[Thésaurus Mesh]Scotome
[Thésaurus Mesh]Vision faibleMots-clés : maladie maculaire bilatérale scotomes centraux bilatéraux zones rétiniennes locus rétinien locus rétinien préféré Eccentric Viewing Résumé : SIGNIFICANCE This study explores whether eccentric viewing training (EVT) changes the properties of the retinal area used for fixation in subjects with bilateral macular disease. The data presented demonstrate the feasibility of conducting a randomized controlled trial on EVT.
PURPOSE Patients with bilateral central scotomas adopt other retinal area(s) called preferred retinal locus to substitute the blind fovea. EVT is offered with the goal to improve functional vision by learning how to identify and use a more useful retinal area for fixation—a trained retinal locus—and/or to improve fixation stability with their existing preferred retinal locus. An observational study was conducted to determine whether patients change and adopt a new trained retinal locus location and/or if fixation stability improves after EVT.
METHODS Seventy-six patients with bilateral central scotomas received EVT from an experienced rehabilitation therapist. Retinal locations for repeated fixations and sizes of central scotomas of the better eye were recorded before and after EVT with a scanning laser ophthalmoscope. The position and area of the 95% confidence bivariate ellipse that defines the retinal area in which 95% of fixations occur were analyzed.
RESULTS We observed no significant difference between the size of the area of the fitted ellipses before (mean [SD], 26.4° [19.7°]) and after (mean [SD], 24.8° [20.9°]) EVT (P = .54). However, we observed a shift in the preferred retinal locus location after EVT (P < .0001). The mean (SD) shift in the position of the center of fixation after EVT was 7.5° (5.2°; range, 0.45 to 23°). This mean difference was larger than would be expected from average within-subject fixation stability.
CONCLUSIONS The location of the retinal area used for fixation changes after EVT. Fixation stability does not change after EVT. These preliminary data are yet to be confirmed with the use of a control group.
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Cote Support Localisation Section Disponibilité aucun exemplaire Insights Regarding Optometric Findings of CHARGE Syndrome in a Pediatric Low Vision Clinic / Alicia M. Donahue in OVS : Optometry & Vision Science, vol. 100, 06 (Juin 2023)
[article]
in OVS : Optometry & Vision Science > vol. 100, 06 (Juin 2023)
Titre : Insights Regarding Optometric Findings of CHARGE Syndrome in a Pediatric Low Vision Clinic Type de document : article de périodique Auteurs : Alicia M. Donahue ; Rebecca A. Deffler ; Barry S. Kran ; Nicole Christie Ross Année de publication : 2023 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]Enfant
[Thésaurus Mesh]Optométrie
[Thésaurus Mesh]Signes et symptômes
[Thésaurus Mesh]Syndrome CHARGE
[Thésaurus Mesh]Vision oculaire
[Thésaurus HELB]:Optique:basse visionRésumé : SIGNIFICANCE
CHARGE, named for common findings—coloboma, heart defects, atresia of choanae, retardation of growth and development, genital hypoplasia, and ear anomalies—is a frequent etiology of deaf-blindness. A retrospective review in a pediatric low vision clinic presented the opportunity to investigate ocular findings in this syndrome with variable clinical presentations.
PURPOSE
This retrospective study reviewed ocular findings and visual function measures from low vision evaluations of patients with CHARGE syndrome, which may influence their multidisciplinary management.
METHODS
A retrospective chart review was conducted by three examiners of 60 patients presenting with CHARGE syndrome at a pediatric low vision clinic. Visual acuity and contrast sensitivity were obtained using standard measures. Ocular alignment and cycloplegic refractive error measurements were recorded. Refractive findings were analyzed using vector analysis. Anterior and posterior segment findings were recorded.
RESULTS
Patients ranged in age from 1 to 29 years and were followed up for a mean of 4.3 years. Best-corrected visual acuity ranged from no light perception to 20/20 Snellen equivalent. Characteristics of strabismus, occurring in 82% of patients, were reported. Contrast sensitivity was reduced in 52% of patients. Chorioretinal colobomas were reported in 88% of patients. The most common ocular findings included nystagmus (43%), microphthalmia (27%), iris coloboma (27%), and facial nerve palsy (23%). Refractive vector analysis revealed significant myopic progression of the spherical equivalent with age and a tendency for with-the-rule astigmatism and minimal obliquity.
CONCLUSIONS
This retrospective review of a relatively large sample size for this rare condition outlined the most common ocular manifestations of CHARGE syndrome. Decreased visual acuity, myopic refractive error, strabismus, and reduced contrast sensitivity were common. Thus, careful optometric evaluation in this population is required, as these findings must be considered in appropriate clinical and habilitative management.Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire Telerehabilitation Training to Facilitate Improved Reading Ability with New Magnification Devices for Low Vision / Ava Bittner in OVS : Optometry & Vision Science, vol. 99, 10 (octobre 2022)
[article]
in OVS : Optometry & Vision Science > vol. 99, 10 (octobre 2022)
Titre : Telerehabilitation Training to Facilitate Improved Reading Ability with New Magnification Devices for Low Vision Type de document : article de périodique Auteurs : Ava Bittner ; John E Kaminski ; Nicole Christie Ross ; John D. Shepherd ; Stacy J. Thoene ; Sarah Z. Bui ; Patrick D. Yoshinaga Année de publication : 2022 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]Accessibilité des services de santé
[Thésaurus Mesh]Lecture
[Thésaurus Mesh]Projets pilotes
[Thésaurus HELB]:Optique:basse vision
[Thésaurus HELB]:Optique:loupe
[Thésaurus HELB]:Paramédical:TéléréadaptationRésumé : SIGNIFICANCE: This pilot study provides some insight about the potential benefits of telerehabilitation training to improve the reading ability of adults with low vision using magnifiers, to spur future work with larger groups. Telerehabilitation services can be implemented clinically to facilitate access to follow-up care for low vision. PURPOSE: A recent Cochrane systematic review revealed that there are no published visual function outcomes for telerehabilitation with handheld magnification devices for low vision; thus, this study aimed to provide evidence for its preliminary efficacy. METHODS: One to 4 months after receiving a new magnification device (i.e., handheld or stand optical magnifier or portable electronic magnifier), 14 adult low vision patients (with any visual acuity level or ocular diagnosis) received two training sessions at home via telerehabilitation with their vision rehabilitation provider located remotely in-office. Telerehabilitation included a loaner smartphone for Zoom videoconferencing with remote control access software. The Minnesota Low-Vision Reading Test was administered during each of the telerehabilitation sessions to assess near reading (acuity and speed) with the new magnifier. RESULTS: Mean reading acuity with the magnifier was 0.17 logMAR across subjects before training at telerehabilitation session 1, which significantly improved to 0.09 on average a few weeks later at telerehabilitation session 2 (95% confidence interval, −0.001 to −0.16; P = .047). Logarithm reading speed with the magnifier for the reading acuity level at session 1 improved significantly by 0.18 log words per minute on average for the same text size at session 2 (95% confidence interval, 0.06 to 0.29; P = .002). With the magnifier at session 2, 71% of participants gained at least 0.1 log unit in reading acuity, and half improved by >0.01 in log reading speed; all participants with increased reading speed also improved in reading acuity ( P = .02). CONCLUSIONS: These preliminary data support that telerehabilitation can enhance reading ability and efficiency with newly prescribed magnifiers as an alternative option to in-office vision rehabilitation Note de contenu :
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Cote Support Localisation Section Disponibilité aucun exemplaire U.S. Optometrists' Reported Practices and Perceived Barriers for Low Vision Care for Mild Visual Loss / Alexis G. Malkin in OVS : Optometry & Vision Science, vol. 97, 01 (Janvier 2020)
[article]
in OVS : Optometry & Vision Science > vol. 97, 01 (Janvier 2020)
Titre : U.S. Optometrists' Reported Practices and Perceived Barriers for Low Vision Care for Mild Visual Loss Type de document : article de périodique Auteurs : Alexis G. Malkin ; Nicole Christie Ross ; Tiffany L. Chan ; Kristin Protosow ; Ava Bittner Année de publication : 2020 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]États-Unis d'Amérique
[Thésaurus Mesh]Optométrie
[Thésaurus Mesh]Personnes malvoyantes
[Thésaurus HELB]:Optique:basse vision
[Thésaurus HELB]:Optique:rééducation visuelleMots-clés : perte de vision légère Résumé : SIGNIFICANCE: Identification of modifiable barriers to low vision rehabilitation (LVR) can inform efforts to improve practice management of patients with low vision (LV), through, for example, targeted educational programs for optometrists who do not practice LVR. PURPOSE: Mild vision loss (20/25 to 20/70) is increasing in prevalence among the aging population, yet it is unclear whether near-reading complaints (the highest presenting chief complaint) are being addressed. Studies of LVR provision by U.S. optometrists are currently lacking. This study elucidated self-reported optometric practice patterns for patients with mild vision loss. METHODS: Anonymous surveys were completed by 229 actively practicing optometrists across the United States. The survey inquired about the frequency of providing LVR for mild vision loss patients and the top barriers that prevent them from offering LVR management (including optical aids or referral). RESULTS: Compared with those moderately actively practicing LVR, twice as many (2.08 ) practitioners who do not practice any LVR reported that they never prescribe near-reading add power of 4 D or greater for mild vision loss (P < .001). Among those who do not practice LVR, 39 and 11% indicated that they never prescribe any LVR management strategies for patients with visual acuity of 20/25 to 20/40 and 20/50 to 20/70, respectively. The two most commonly reported barriers to LVR indicated by about half of respondents were “cost of the LV exam and/ or devices” and that “patients are not interested or would not go to an LV exam.” Nearly a third of providers reported that “it is not feasible to stock magnifiers in office.” CONCLUSIONS: A sizable group of non-LVR providers in the United States may not be addressing the near-vision needs of patients with mild vision loss. Several of the reported top barriers are potentially modifiable through the development of targeted educational programs for providers. Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire Why Are Visual Assistive Mobile Applications Underused by Low Vision Patients? / Alexis G. Malkin in OVS : Optometry & Vision Science, vol. 99, 04 (Avril 2022)
[article]
in OVS : Optometry & Vision Science > vol. 99, 04 (Avril 2022)
Titre : Why Are Visual Assistive Mobile Applications Underused by Low Vision Patients? Type de document : article de périodique Auteurs : Alexis G. Malkin ; Nicole Christie Ross ; Melissa W. Chun ; Ava Bittner Année de publication : 2022 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]Applications mobiles
[Thésaurus Mesh]Autonomie personnelle
[Thésaurus Mesh]Personnes malvoyantes
[Thésaurus Mesh]Téléphones portables
[Thésaurus Mesh]Troubles de la visionMots-clés : assistance visuelle Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire