Bilberry And The Night-Vision Story That Did Not Survive Testing
A systematic review found the night-vision claim only in the uncontrolled trials. Two modern trials found something else instead.
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Visivra Team at Govisivra · physician review: Dr. Preston Sullivan, MD · last revised
Five longer pieces about the evidence behind eye supplements, rather than about this bottle.
Bilberry and a claim that failed under a placebo. The pigment layer every formula is aimed at. Why the meal beats the hour. Astaxanthin, and what could not be verified. And what eye trials actually measure, which is almost never the letter chart.
Two of the five cost this product something outright. That is deliberate: a blog that only agrees with the bottle beside it is an advertisement with subheadings.
All five posts
Five pieces on how eye supplement evidence is made
Each one cites four to six records and links every one of them at the sentence that relies on it.
Macular Pigment: The Layer This Whole Category Is Aimed At
A five-millimetre patch of pigment built from carotenoids the body cannot make, and the reason every eye supplement is slow.
Carotenoids Need Fat: Why The Meal Matters More Than The Hour
A controlled feeding study measured absorption rising with the oil in the meal. No study has found a best hour of the day.
Astaxanthin: One Good Trial, And A Great Deal Of Marketing
What can honestly be said about astaxanthin in an eye capsule, and what this desk could not verify and therefore does not cite.
What Eye Trials Actually Measure, And Why It Is Rarely The Eye Chart
Five outcomes, five different questions, and the column in every trial that marketing copy leaves out.
