The NADefense Blog

Learn More About Vision Wellness

Plain-English guides on eye health, the science behind our ingredients, and how to have better conversations with your ophthalmologist.

A 400-Year-Old Shark May Be Teaching Us Something About Eye Aging Eye Health
April 17, 2026

A 400-Year-Old Shark May Be Teaching Us Something About Eye Aging

Greenland sharks can live more than 400 years. A new study looked at how their retinas stay functional that long. The findings point back to pathways we already...

Read Article
Lutein Is in Your Eyes. It Is Also in Your Brain. Blue Light
April 15, 2026

Lutein Is in Your Eyes. It Is Also in Your Brain.

Lutein concentrates in both your retina and your brain. Here is what the research says about how it supports vision and cognition, and how much you actually need.

Read Article
Oculomics: How AI Eye Scans Can Detect Heart Disease, Alzheimer's, and More Eye Health
April 13, 2026

Oculomics: How AI Eye Scans Can Detect Heart Disease, Alzheimer's, and More

Imagine going to your eye doctor for a routine vision check, only to walk out with actionable health information about your cardiovascular system, cognitive decline, or kidney function....

Read Article
It Is Not Your Screen. What Is Really Driving Nearsightedness. Blue Light
April 09, 2026

It Is Not Your Screen. What Is Really Driving Nearsightedness.

A February 2026 study from SUNY College of Optometry proposes myopia is driven by prolonged close-up focus in dim indoor lighting, not screens or blue light. Learn what...

Read Article
Mitochondria Are Trending. Here Is What That Means for Your Eyes. Mitochondria
April 07, 2026

Mitochondria Are Trending. Here Is What That Means for Your Eyes.

Mitochondria are everywhere in wellness right now. But your retina depends on these tiny power generators more than almost any other tissue. Here is why eye health belongs...

Read Article
Dry AMD Had No Treatment. That May Be Changing. AMD
April 03, 2026

Dry AMD Had No Treatment. That May Be Changing.

For the first time, a stem cell therapy has shown real vision improvement in dry macular degeneration patients. Here is what the latest trials found.

Read Article
Can We Reverse Aging in the Eye? The First Human Trial Is Underway Yamanaka Factors
April 01, 2026

Can We Reverse Aging in the Eye? The First Human Trial Is Underway

The first human trial of cellular rejuvenation therapy for the eye just started recruiting. Here is what it means for the future of vision.

Read Article
Your Gut Bacteria May Be Affecting Your Vision Eye Health
March 25, 2026

Your Gut Bacteria May Be Affecting Your Vision

Researchers are uncovering a surprising connection between the bacteria in your gut and the health of your eyes. Here is what the science says so far.

Read Article
What the AAO's New NAD+ Statement Means for You Glaucoma
March 23, 2026

What the AAO's New NAD+ Statement Means for You

Two of America's top eye organizations just acknowledged that NAD+ precursors show promise for glaucoma. Here's what you need to know.

Read Article