Eye Health Insider
Eye Health Guides & Research
Evidence-based articles on eye health supplements, ingredient science, and the emerging gut-eye connection. Written and reviewed by Eye Health Insider Editorial Team.
Symptoms & Screening
Why Night Driving Is Getting Harder: Causes of Declining Night Vision
Pupil size, lens yellowing, and photoreceptor decline compound with age — and one of the most common causes, cataracts, has a direct fix. Here's what actually causes declining night vision.
July 23, 2026 · 10 min read
Eye Health Science
Do Blue Light Glasses Actually Work? Here's What Studies Say
A 2021 Cochrane review found no meaningful evidence blue-light glasses reduce eye strain. The one blue-light claim that holds up has nothing to do with eye strain — it's about sleep.
July 23, 2026 · 10 min read
Symptoms & Screening
Eye Floaters: Normal Aging or Something to Worry About?
Most floaters are harmless age-related vitreous changes. A sudden shower of new floaters with flashes of light is different — here's how to tell the two apart.
July 23, 2026 · 9 min read
Ingredients
Bilberry Extract for Eye Health: What the Research Actually Shows
The WWII pilot night-vision story is folklore, not data. Here's what placebo-controlled trials actually found, and the narrower claim bilberry extract genuinely supports.
July 23, 2026 · 10 min read
Ingredients
Astaxanthin for Eye Health: What the Research Actually Says
Astaxanthin crosses the blood-retinal barrier and carries roughly 550× the antioxidant capacity of vitamin E. Here's what the RCTs actually show for eye fatigue and AMD.
July 2, 2026 · 11 min read
Symptoms & Screening
Early Signs of Macular Degeneration: What to Look For (and What to Do)
Early AMD causes no symptoms — it's only visible on a retinal exam. How to screen at home with the Amsler grid, and what to do at each stage.
July 2, 2026 · 10 min read
Ingredients
How Much Lutein Per Day for Eye Health? (The Evidence-Based Answer)
10 mg/day is the AREDS2-tested minimum; research supports 20 mg/day for maximum macular pigment density. Most adults get under 2 mg/day from food.
July 2, 2026 · 9 min read
Clinical Research
AREDS2 Formula Explained: What's In It, Who Needs It, and What's Missing
The complete AREDS2 breakdown — exact ingredients, doses, what the NIH trial found, who benefits, and where the original formula falls short.
July 1, 2026 · 14 min read
Eye Health Science
Digital Eye Strain: What's Actually Happening to Your Eyes on Screens
The exact mechanisms behind digital eye strain — accommodation fatigue, reduced blink rate, blue light — and what the evidence shows about nutritional support.
July 1, 2026 · 11 min read
Ingredients
Taurine for Eye Health: The Most Important Retinal Nutrient You've Never Heard Of
The most abundant free amino acid in the retina — essential for photoreceptor survival and protection from oxidative stress. Most people have never heard of it.
July 1, 2026 · 13 min read
Buyer's Guide
Best Eye Health Supplements 2026: What to Look For
The five ingredients that matter, red flags to avoid, and how to read a supplement label for eye health.
June 20, 2026 · 8 min read
Eye Health Science
The Gut-Eye Connection: How Your Gut Health Affects Your Vision
How LPS from a leaky gut reaches the retina, triggers inflammation, and accelerates vision decline — and what the research says.
June 20, 2026 · 10 min read
Ingredients
Lutein and Zeaxanthin: What the Research Actually Says (2026)
AREDS2 trial data, effective doses, food sources vs supplements, and how to check a label in 30 seconds.
June 20, 2026 · 9 min read
Eye Health Insider is written and reviewed by Eye Health Insider Editorial Team. We cite peer-reviewed research and disclose all affiliate relationships. No content on this site constitutes medical advice.