Comparison of macular pigment densities in human eyes

doi:10.1016/0042-6989(71)90112-X

Vision Research

Volume 11, Issue 10, October 1971, Pages 1057-1064

https://doi.org/10.1016/0042-6989(71)90112-X Get rights and content

Abstract

The optical density curve of the macular pigment has been estimated for 49 European and West Indian subjects by comparing their foveal and extra-foveal spectral sensitivities measured by the flicker technique. No significant differences in density have been observed related to race, normal environment, age, colour of skin or colour of eyes but red-naked subjects had on average a significantly higher density of macular pigment. The extinction coefficient of the pigment was the same for all subjects and differences in density were consistent with variations in pigment concentration and/or thickness of absorbing layer.

Résumé

On mesure sur 49 sujets européens et Ouest-Indiens la courbe de densitéoptique du pigment maculaire par comparaison (technique de papillotement) des sensibilités spectrales fovéales et extra-fovéales. On n'observe pas de différences significatives de densitéen liaison avec la race, l'environnement normal, l'aˆge, la couleur de la peau ni la couleur des yeux, mais les sujets roux présentent en moyenne une densitéde pigment maculaire plusélevée, d'une façon significative. Le coefficient d'extinction du pigment est le meˆme pour tous les sujets et les différences de densitéproviennent de variations dans la concentration du pigment, ou dans l'épaisseur de la couche absorbante, ou les deux.

Zusammenfassung

Durch Vergleich der mit dem Flimmerphotometer gemessenen fovealen und auβerfovealen spektralen Empfindlichkeit wurde die Dichte des Maculapigmentes für 49 europäische und westindische Vp geschätzt. Es ergaben sich keine signifikanten Unterschiede bezüglich Rasse, normaler Umgebung, Alter, Hautfarbe oder Augenfarbe, lediglich rothaarige Vp hatten eine im Durchschnitt signifikant höhere Dichte des Maculapigments. Der Extinktionskoeffizent des Pigmentes war für alle Vp gleich. Unterschiede in der Dichte waren inÜbereinstimmung mitÄnderungen in der Pigmentkonzentration und/oder der Dicke der absorbierenden Schicht.

Peзюme

Кpивaя oптихecкoй плoтнocти мaкyляpнoгo пнгмeнтa былa oпpeдeлeнa для 49 иcпытyeмых Eвpoпeйцeв и ypoжeнцeв Becтнндии, пyтeм cpaвнeния их фoвeaльнoй и зкcтpaфoвeaльнoй cпeктpaльнoй хyвcтвитeльнocти, измepeннoй мeтoдoм мeлькaющeй фoтoмeтpии. He нaблюдaлocь знaхитeльных paзлихий в плoтнocти, пpи cooтнeceнии ee к pace, oбыхнoмy oкpyжeнию, вoзpacтy, цвeтy кoжи или цвeтy глaз, нo pыжиe cyбьщeкты имeли в cpeднeм знaхитeльнo бoлee выcoкyю плoтнocть мaкyляpнoгo пигмeнтa. Кoзффициeнт зкcтинкции был oдинaкoвьм для вceх иcпытyeмых и paзлихия в oптиyecкoй плoтнocти cooтвeтcтвoвaли вapиaциям в кoнцeнтpaции питмeнтa и/или тoлщинe aбcopбиyющeгo cлoя.

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Comparison of macular pigment densities in human eyes

Abstract

Résumé

Zusammenfassung

Peзюme

Physica

Vision Res.

Physiology of the Retina and Visual Pathway

The photopic luminosity curve for a group of fifteen Egyptian trichromats

J. opt. Soc. Am.