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Comparison between an objective and a psychophysical method for the evaluation of intraocular light scattering

Barrionuevo, Pablo Alejandro et al · Optical Society of America · 2012

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Author / responsible party
Barrionuevo, Pablo Alejandro et al
Publisher
Optical Society of America
Year
2012
ISSN
1293-1299
ISSN
1293-1299
Language
English

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In this study we present the comparison of the performance of two systems to measure intraocular scattering. Measurements were made by using a psychophysical system based on a brightness comparison method that provides a glare index and a physical system based on the double-pass technique, which gives an objective scatter index by measuring the optical quality of the eye. Three external diffuser filters that simulated different grades of intraocular scattering were used in subjects with normal vision. The two measured indexes showed a graded rise with increasing level of scattering. The discrimination ability obtained for both systems showed that they were able to distinguish among conditions ranging from normal to early cataracts. Fil: Barrionuevo, Pablo Alejandro. 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 Fil: Colombo, Elisa Margarita. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Laboratorio de Luminotecnia; Argentina. 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

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APA 7

Barrionuevo, Pablo Alejandro et al (2012). Comparison between an objective and a psychophysical method for the evaluation of intraocular light scattering. http://hdl.handle.net/11336/270730

MLA

Barrionuevo, Pablo Alejandro et al. "Comparison between an objective and a psychophysical method for the evaluation of intraocular light scattering." 2012. http://hdl.handle.net/11336/270730.

Chicago

Barrionuevo, Pablo Alejandro et al. 2012. "Comparison between an objective and a psychophysical method for the evaluation of intraocular light scattering.". http://hdl.handle.net/11336/270730.

Harvard

Barrionuevo, Pablo Alejandro et al 2012, Comparison between an objective and a psychophysical method for the evaluation of intraocular light scattering, Optical Society of America, available at: http://hdl.handle.net/11336/270730 [Accessed 9 Aug. 2026].

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Title
Comparison between an objective and a psychophysical method for the evaluation of intraocular light scattering
Author / contributors
Barrionuevo, Pablo Alejandro et al
Publisher
Optical Society of America
Publication year
2012
ISSN
1293-1299
ISSN
1293-1299
Language
English

Subjects

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Scattering measurements; Physiological optics; Psychophysics; https://purl.org/becyt/ford/1.3; https://purl.org/becyt/ford/1; https://purl.org/becyt/ford/1.6; https://purl.org/becyt/ford/1
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