A new desktop instrument for measuring macular pigment optical density based on a novel technique for setting flicker thresholds

Rob L P Van Der Veen, Tos T J M Berendschot, Fred Hendrikse, David Carden, Maria Makridaki, Ian J. Murray

    Research output: Contribution to journalArticlepeer-review

    Abstract

    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 retinal reflectometry (r = 0.78). MPOD spatial profiles are presented for seven normal observers and these are well described (r = 0.99) by a decaying exponential function consistent with previous reports. MPOD values are presented from 5581 (2435 females and 3146 males) individuals measured in 48 optometric practices. The mean MPOD of this population was 0.33 (S.D. ± 0.187) which is similar to previous large scale studies of MP. © 2009 The College of Optometrists.
    Original languageEnglish
    Pages (from-to)127-137
    Number of pages10
    JournalOphthalmic and Physiological Optics
    Volume29
    Issue number2
    DOIs
    Publication statusPublished - Mar 2009

    Keywords

    • Desktop instrument
    • Flicker photometry
    • Large data set
    • Macular pigment
    • Macular pigment optical density
    • Naïve observers

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