(2 mins) Transcript. Dr Greger's summary: "A healthy diet may not only prevent the complications of diabetes, but also reduce the risk of age-related macular degeneration — another common cause of blindness."

(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."

(5 mins) Transcript. Dr Greger's summary: "Causes of dry eye disease include LASIK laser eye surgery, but there are dietary approaches to prevention and treatment."

(2 mins) Transcript. Dr Greger's summary: "Risk of developing cataracts was compared in meat-eaters, fish-eaters, vegetarians, and vegans."

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

Dr Rogers explains that all of these conditions are inter-related and influenced by the food we eat.

Dr Odorcic is double board certified in Ophthalmology and Lifestyle Medicine. She chanced upon the documentary What The Health (97 mins, 2017).

Dr Odorcic mentions that she is able to see hypertension, diabetes, autoimmune conditions like lupus in the eyes of a person! The eye is an organ that gives us a direct view of our vasculature.

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