A portable instrument for measuring macular pigment with central fixation
نویسندگان
چکیده
منابع مشابه
A portable instrument for measuring macular pigment with central fixation.
PURPOSE To evaluate the reliability and validity of a portable instrument for measuring macular pigment optical density. METHODS The instrument is small, uses light emitting diodes as light sources and the principles of heterochromatic flicker photometry of comparing foveal and extra-foveal minimum flicker matches. It uses central fixation for the extra-foveal matches, which subjects found ea...
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PURPOSE Of the antioxidants found in the human retina, only the macular carotenoid quantities can be estimated noninvasively (albeit in a collective fashion), thus facilitating study of their role in that tissue. The aim of this study was to evaluate concordance between macular pigment optical density (MPOD) values recorded on a commercially available instrument, the MPS 9000, with those of an ...
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A rapid portable technique for estimating macular pigment optical density (MPOD) in large populations is described. The new instrument utilises a novel method for setting flicker thresholds which is undemanding for naïve and elderly observers and easily operated by a non-technical person. The method has good repeatability (r = 0.97) and the data are comparable with an optical method based on re...
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BACKGROUND AND OBJECTIVE The purpose of this study is to measure the macular pigment optical density and study its spatial profile as well as identify its determinant factors in a Central European population. PATIENTS AND METHODS The macular pigment optical density (MPOD) and its distribution were assessed in 228 eyes of 129 subjects using fundus reflectometry with the Visucam 500 (Carl Zeiss...
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ژورنال
عنوان ژورنال: Current Eye Research
سال: 2002
ISSN: 0271-3683,1460-2202
DOI: 10.1076/ceyr.25.1.37.9961