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Published on: January 29, 2020
Measurement of macular pigment optical density using two different heterochromatic flicker photometers
Edward Loane1, Jim Stack, Stephen Beatty
1Macular Pigment Research Group, Department of Chemical & Life Sciences, Waterford Institute of Technology, Waterford, Ireland. eloane@wit.ie
Purpose:
To compare macular pigment optical density using two different heterochromatic flicker photometers.
Methods:
We measured macular pigment optical density in 121 healthy subjects using heterochromatic flicker photometry.
Results:
The mean (+/-SD) macular pigment optical density measured using the Maculometer was 0.394 (+/-0.170), and that using the Densitometer was 0.395 (+/-0.189). The difference in measurements on each instrument was influenced by age and macular pigment levels.
Conclusions:
On average, there is no difference in measurements provided by these two instruments. The Maculometer tends to underestimate macular pigment in older subjects and/or those with higher macular pigment compared with the Densitometer.
