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When light enters the human eye it passes through the cornea, pupil, and lens to focus on an area of light-sensitive tissue called the retina. Near the center of the retina of the eye is a light yellow spot called the macula. It’s here where lutein and zeaxanthin concentrate to form macular pigment to filter out excess blue and ultraviolet light — acting much like a pair of sunglasses would — and protecting the… Read More