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.

Blue Light and Your Retina: What the 2026 Science Actually Shows Blue Light
June 02, 2026

Blue Light and Your Retina: What the 2026 Science Actually Shows

Blue light research took a significant step forward in 2026. Three new studies pinpointed exactly how it damages retinal cells at the mitochondrial level. Here is what the...

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What Nicotinamide Riboside Is Doing Inside Your Retina eye health
May 26, 2026

What Nicotinamide Riboside Is Doing Inside Your Retina

You have probably heard that NR boosts NAD+ for energy and longevity. Here is what two new studies reveal about what it does specifically inside your retina.

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Air Pollution and Your Eyes: What a 441,000-Person Study Found Eye Health
May 19, 2026

Air Pollution and Your Eyes: What a 441,000-Person Study Found

Most people think of air pollution as a lung problem. New research tracking nearly half a million people over 14 years found it may also be quietly raising...

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Why Your Aging Retina Needs CoQ10 Mitochondria
May 12, 2026

Why Your Aging Retina Needs CoQ10

CoQ10 is one of the most popular supplements in the world. Most people take it for their heart. Almost no one knows what it does for the eye,...

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What Ginkgo Biloba Actually Does for Your Eyes Ginkgo
May 07, 2026

What Ginkgo Biloba Actually Does for Your Eyes

You have seen it on supplement labels. But what does ginkgo biloba actually do for your eyes? Here is what the science says.

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Why Your Eye Doctor Might Prescribe a Walk Eye Health
April 27, 2026

Why Your Eye Doctor Might Prescribe a Walk

Most glaucoma patients focus on drops and monitoring. But a 2025 study found that 10,000 steps a day is linked to significantly better blood flow to the optic...

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Dry Eye's Hidden Cause: Your Cellular Cleanup System Dry Eye
April 27, 2026

Dry Eye's Hidden Cause: Your Cellular Cleanup System

Most dry eye treatments address symptoms. A 2025 study reveals the root cause may be inside your tear glands, where a cellular process called autophagy has broken down.

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The Eye Nutrient Scientists Found Fighting Cancer Cells
April 23, 2026

The Eye Nutrient Scientists Found Fighting Cancer Cells

Zeaxanthin protects the center of your retina from light damage. Researchers just found it does something completely different inside the immune system.

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Sleep Apnea and Glaucoma: What the Science Shows Glaucoma
April 20, 2026

Sleep Apnea and Glaucoma: What the Science Shows

Thirty million Americans have sleep apnea. A growing body of research links repeated overnight oxygen drops to optic nerve damage. Here is what the evidence says and what...

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