The spatial distribution of the optical density of the human macular pigment measured by two-wavelength autofluorescence imaging exhibits in over half of the subjects an annulus of higher density superimposed on a central exponential-like distribution. This annulus is located at about 0.7 degrees from the fovea. Women have broader distributions than men, and they are more likely to exhibit this bimodal distribution. Maxwell's spot reported by subjects matches the measured distribution of their pigment. Evidence that the shape of the foveal depression may be gender related leads us to hypothesize that differences in macular pigment distribution are related to anatomical differences in the shape of the foveal depression.
|Titolo:||Bimodal spatial distribution of macular pigment : evidence of a gender relationship|
|Autori interni:||STAURENGHI, GIOVANNI (Ultimo)|
|Parole Chiave:||heterochromatic flicker photometry ; optical coherence tomography ; fundus autofluorescence ; motion photometry ; diabetic subjects ; healthy-subjects ; ocular fundus ; human retina ; human eyes ; density ; macular pigment|
|Settore Scientifico Disciplinare:||Settore MED/30 - Malattie Apparato Visivo|
|Data di pubblicazione:||mar-2006|
|Digital Object Identifier (DOI):||10.1364/JOSAA.23.000521|
|Appare nelle tipologie:||01 - Articolo su periodico|