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Détail de l'auteur
Auteur Daniel V. McGehee
Documents disponibles écrits par cet auteur
Ajouter le résultat dans votre panier Affiner la rechercheAuditory Global Positioning System and Advanced Driver Assistance Systems : A Safer Alternative to Bioptic Telescopes for Drivers Who Are Visually Impaired? / Mark E. Wilkinson in OVS : Optometry & Vision Science, vol. 96, 02 (Février 2019)
[article]
in OVS : Optometry & Vision Science > vol. 96, 02 (Février 2019) . - p. 130-132
Titre : Auditory Global Positioning System and Advanced Driver Assistance Systems : A Safer Alternative to Bioptic Telescopes for Drivers Who Are Visually Impaired? Type de document : article de périodique Auteurs : Mark E. Wilkinson, Auteur ; Daniel V. McGehee, Auteur Année de publication : 2019 Article en page(s) : p. 130-132 Langues : Anglais (eng) Langues originales : Anglais (eng) Descripteurs (mots clés) : [Thésaurus Mesh]Conduite automobile
[Thésaurus Mesh]Personnes malvoyantes
[Thésaurus Mesh]Sujet âgé
[Thésaurus HELB]:Optique:lunettes télescopiquesRésumé : ABSTRACT This work challenges the standard of the past 40 years, which required the use of a bioptic telescope by individuals with vision loss wanting to be licensed to drive in most states in the United States.
Driving continues to be the key to independence for many individuals, particularly older drivers who live in an area where public transportation is limited or nonexistent. For the past 40 years, the most frequently option to allow drivers who are visually impaired to maintain driving privileges was to require them to use a bioptic telescope. Bioptic telescopes were felt to be necessary for wayfinding when driving. In addition, it was thought that a person could look through a bioptic telescope and still be aware of the driving environment around him/her. Human factor research has shown that the assertion that an individual can attend to two tasks simultaneously is not possible. Taking one's eyes off the road for as little as 2 seconds can lead to lane position breakdown. In 2018, wayfinding can now be more easily accomplished with the use of ubiquitous technologies like Global Positioning System systems on our telephones and in our cars. Driver distraction principles support safer alternatives to bioptic telescopes because these audio options allow the drivers to maintain their eyes and their attention on the road and the traffic around them. The switching of view within the bioptic spectacles is attentionally demanding, and the visual field restriction of such devices reduces overall situation awareness by narrowing the driver's attention.
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Cote Support Localisation Section Disponibilité aucun exemplaire Case Report : Primary Conjunctival Non-Hodgkin Marginal Zone Lymphoma / Mark E. Wilkinson in OVS : Optometry & Vision Science, vol. 96, 02 (Février 2019)
[article]
in OVS : Optometry & Vision Science > vol. 96, 02 (Février 2019) . - p. 133-136
Titre : Case Report : Primary Conjunctival Non-Hodgkin Marginal Zone Lymphoma Type de document : article de périodique Auteurs : Mark E. Wilkinson ; Daniel V. McGehee Année de publication : 2019 Article en page(s) : p. 133-136 Langues : Anglais (eng) Langues originales : Anglais (eng) Descripteurs (mots clés) : [Thésaurus Mesh]Conjonctive
[Thésaurus Mesh]Diagnostic
[Thésaurus Mesh]Lymphome malin non hodgkinien
[Thésaurus Mesh]ThérapeutiqueRésumé : SIGNIFICANCE Ophthalmic manifestations of non-Hodgkin lymphoma are rare, and the diagnosis can be delayed because of nonspecific symptoms and a tendency to mimic the appearance of other ocular diseases. Suspicious presentations will require confirmation of the lymphoma through surgical biopsy.
PURPOSE The purpose of this study was to present an isolated conjunctival non-Hodgkin marginal zone lymphoma without systemic involvement, which was successfully managed with external beam radiation.
CASE REPORT A 49-year-old man reported a red, temporal bulbar conjunctival growth on the left eye for several weeks, which was initially treated as a nodular episcleritis. When the condition did not resolve, a subsequent biopsy diagnosed a low-grade non-Hodgkin marginal zone lymphoma; further testing found no systemic involvement. No intraocular involvement was noted, and B-scan ultrasound and magnetic resonance imaging did not demonstrate any uveal or orbital extension. A trial of doxycycline did not lead to regression, and the isolated lesion was observed. Because of possible slow growth, the lesion was eventually treated with external beam radiation, which resulted in significant tumor regression. Four years after the radiotherapy, the tumor has not recurred, and there has been no systemic involvement.
CONCLUSIONS This case of a low-grade extranodal marginal zone lymphoma on the temporal conjunctiva represents a less common variation of the classic fornix-based presentation. It is not unusual for conjunctival lymphomas to masquerade as another clinical entity, sometimes making the initial diagnosis challenging. If a patient does not respond as expected to conventional therapy, a biopsy to rule out malignancy should be considered.
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