(4 mins) Transcript. Dr Greger's summary: "Yellow plant pigments, such as lutein and zeaxanthin, build up in the back of our eyes to protect our retinas against age-related macular degeneration. Levels of these eyesight–saving nutrients in organic free-range eggs, vegetables, and goji berries are compared."

(3 mins) Transcript. Dr Greger's summary: "Certain berries may help relieve visual fatigue associated with staring at a computer screen all day."

(3 mins) Transcript. Dr Greger's summary: "Blueberries may help protect against age-related macular degeneration, and black currants may help halt the progression of glaucoma."