Eyes and Aging: A Decade-by-Decade Guide (40s, 50s, 60s)
The visual system ages the way most biological systems do: gradually, unevenly, and with a gap between what’s actually happening and what’s noticeable. A lot […]
Tennis and Ball-Tracking Vision: How Your Eyes Win the Point
A tennis ball traveling at 120 miles per hour takes roughly 400 milliseconds to cross the net. Your brain needs somewhere between 150 and 200 […]
Nutrition for Night Vision: What the Evidence Says
The idea that food can influence night vision has been around for centuries. Sailors ate bilberries to see better in the dark. Military cooks were […]
Eye Supplement Dosing: How Much Lutein Do You Actually Need?
Supplement dosing is a topic that attracts more confusion than most, partly because the marketing conventions of the industry pull in two opposite directions at […]
Eye Health at High Altitude: What Changes and Why
Most people who travel to altitude — for skiing, hiking, climbing, or simply visiting a high-elevation city — are prepared for the possibility of headache, […]
Eye Strain vs. Dry Eyes: What’s the Difference?
You have been at your desk for four hours. Your eyes feel uncomfortable in a way that is genuinely hard to pin down. They are […]
Eye Exams as You Age: What to Get Tested and How Often
Most adults treat eye exams the way they treat smoke alarm batteries — they know they should address it, they have vague intentions to do […]
Vision and Athletic Performance: Why Eye Speed Matters
Watch a professional baseball batter face a 95-mile-per-hour fastball and the physics become uncomfortable quickly. The ball travels the 60 feet between the mound and […]
Can Supplements Improve Night Driving?
Night driving is the visual performance test that most people take without realizing it is a test. Unlike sport or gaming, where the stakes of […]
Foods Highest in Lutein and Zeaxanthin (and Why Diet Alone Isn’t Enough)
The case for eating your vegetables has never been more specifically grounded than it is in the eye health literature. Lutein and zeaxanthin, the two […]