Vitamin A2500–5000 IU · with_food
Your eyes use vitamin A to build the pigment that lets you see in dim light.
Strong · 2 of 2 studies agreeResearch →
eyes vision · symptom
Blurry Vision
Sight that won’t quite sharpen up.
Top proven supplements
Studied in people, at a dose you can actually buy.3Studied in people, at a dose you can actually buy.
Zinc15–30 mg · empty_stomach
Your retina holds more zinc than any other tissue, and needs it to process light.
Solid · 1 study, positiveResearch →
Astaxanthin6–12 mg · any
Builds up in the central part of your retina and shields it from light damage.
Solid · 1 study, positiveResearch →
Might help
Real research, but thin or split. Worth knowing, not worth counting on.2Real research, but thin or split. Worth knowing, not worth counting on.
Ginkgo120–160 mg · any
Improves blood flow to the retina and protects it from oxidative damage.
Mixed · 1 of 2 studies positiveResearch →
Lutein10–20 mg · any
Builds up in the centre of your retina and filters harsh blue light.
Mixed · 4 of 5 studies positiveResearch →
Tested — didn’t work
Measured properly against placebo. Nothing found.1Measured properly against placebo. Nothing found.
Omega-31000–2000 mg · with_food
DHA makes up most of the fat in your retina and keeps photoreceptors working.
No benefit foundResearch →
No research yet
People take these for it. We haven’t found trials we would stand behind.2People take these for it. We haven’t found trials we would stand behind.
Vitamin E400 IU · with_food
No trials we can vouch forResearch →
Lycopeneany
An antioxidant, so the theory is it shields the retina — like lutein is meant to.
No trials we can vouch forResearch →