More than half of Americans have light-colored eyes but less than half of them know this puts them at greater risk for UV damage. Dr. Mark R. Mandel discusses the risks in detail.
Sun Exposure and Your Eyes: Adam Hart, M.D.: Ophthalmologist
The Reliable Truth How UV damages eyes
なぜ日本人はサングラスを着用しないのですか? - Quora
Photoaging: What You Need to Know About the Other Kind of Aging - The Skin Cancer Foundation
Blue eyes: Is everyone with blue eyes related?
Does having blue eyes predispose you to any diseases of the eye
The Best and Worst Habits for Eyesight - The New York Times
Are Blue Eyes More Sensitive to Light?
Is It True That Blue Eyes Are More Sensitive to Sunlight?
なぜ日本人はサングラスを着用しないのですか? - Quora