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A review of motion photometry in the assessment of macular pigment distribution profiles obtained over two decades; applications and insights
Author(s) -
Robson A.,
Moreland J.
Publication year - 2017
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2017.02162
Subject(s) - photometry (optics) , optometry , ophthalmology , medicine , physics , astronomy , stars
Summary This presentation will review the use of a Moreland anomaloscope, modified for motion photometry, in the assessment of macular pigment ( MP ) over the last 20 years. Early studies examined the influence of MP on chromatic visual evoked potentials and highlighted the limitations of monitor‐based methods of MP quantification, involving the use of carotenoid solutions to simulate MP . Detailed examinations using motion photometry characterised a wide range of MP distribution profiles and revealed a lack of correlation between peak optical density at the fovea and computations of the total complement of MP within the central 15 degrees, corroborated using 2‐wavelength fundus autofluorescence measurements. Motion photometry assessments in individuals with widely different MP distribution profiles demonstrated a high degree of stability over periods of up to 19 years, pertinent to studies that aim to monitor MP in disease or modify MP through dietary supplementation.