A “central dip” in macular pigment is related to age and cigarette smoking. Kirby ML, Beatty S, Loane E, Akkali MC, Connolly EE, Stack J, Nolan JM. Investigative Ophthalmology and Visual Science. June 2010.

A “central dip” in macular pigment is related to age and cigarette smoking. Kirby ML, Beatty S, Loane E, Akkali MC, Connolly EE, Stack J, Nolan JM. Investigative Ophthalmology and Visual Science. June 2010.