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dc.contributor.author
Aparicio, Juan A.
dc.contributor.author
Arranz, Isabel
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Matesanz, Beatriz M.
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Vizmanos, Juan G.
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Padierna, Lidia
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González, Víctor R.
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Mar, Santiago
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Menéndez, José A.
dc.contributor.author
Issolio, Luis Alberto
dc.date.available
2020-02-10T18:10:30Z
dc.date.issued
2010-03
dc.identifier.citation
Aparicio, Juan A.; Arranz, Isabel; Matesanz, Beatriz M.; Vizmanos, Juan G.; Padierna, Lidia; et al.; Quantitative and functional influence of surround luminance on the letter contrast sensitivity function; Wiley Blackwell Publishing, Inc; Ophthalmic And Physiological Optics; 30; 2; 3-2010; 188-199
dc.identifier.issn
0275-5408
dc.identifier.uri
http://hdl.handle.net/11336/97081
dc.description.abstract
Aim: To determine the influence of surround luminance on the letter contrast sensitivity function. Method: The binocular contrast sensitivities of 31 young and ocularly healthy individuals were measured with letters of sizes calculated to obtain the targeted fundamental frequencies of 3, 10, 20, and 30 c deg-1, respectively; with surround luminances from 1 to 1000 cd m-2, always with a test chart background luminance of 200 cd m -2. Results: The letter contrast sensitivity increased with surround luminance up to 100 cd m-2 and decreased when surround luminance increased from 100 to 1000 cd m-2. These increments are larger for higher fundamental spatial frequencies, while decrements are similar for all frequencies. To analyse pupil size influence, results were compared with theoretical predictions obtained by combining different ocular MTFs with a typical neural function, where pupil size decrease leads to letter contrast sensitivity increments and veiling luminance causes the observed decrements. Other possible optical or neural factors that influence these values have also been considered. Conclusions: Letter contrast sensitivity function depends on surround luminance and this influence should be considered in future standardized directives.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CONTRAST SENSITIVITY
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GLARE
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PSYCHOPHYSICS
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VISION
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Otras Ingenierías y Tecnologías
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Otras Ingenierías y Tecnologías
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Quantitative and functional influence of surround luminance on the letter contrast sensitivity function
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-06-04T15:56:24Z
dc.journal.volume
30
dc.journal.number
2
dc.journal.pagination
188-199
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Juan Antonio Aparicio. No especifica;
dc.description.fil
Fil: Isabel Arranz. No especifica;
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Fil: Beatriz Matezanz. No especifica;
dc.description.fil
Fil: Juan Vizmanos. No especifica;
dc.description.fil
Fil: L Padierna. No especifica;
dc.description.fil
Fil: V. Gonzáles. No especifica;
dc.description.fil
Fil: Juan Menéndez. No especifica;
dc.description.fil
Fil: Santiago Mar. No especifica;
dc.description.fil
Fil: Issolio, Luis Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Investigación en Luz, Ambiente y Visión. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Instituto de Investigación en Luz, Ambiente y Visión; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Luminotecnia, Luz y Visión; Argentina
dc.journal.title
Ophthalmic And Physiological Optics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/j.1475-1313.2009.00707.x
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1475-1313.2009.00707.x
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