You may have heard claims that onion can improve your vision in just 5 days. While that might sound too good to be true, onion does contain nutrients that support overall eye health — but let’s set realistic expectations.

 Why Onion Can Support Eye Health

Onions are rich in:

Quercetin – a powerful antioxidant that helps reduce inflammation and oxidative stress in the eyes.

Sulfur compounds – important for producing glutathione, a key antioxidant that protects the lens of the eye.

Vitamin C – supports eye tissue repair and immune function.

While these won’t “cure” vision problems overnight, they can support long-term eye health naturally when combined with a healthy lifestyle.

Ingredients:

½ fresh onion (red or white)

1 teaspoon of honey (optional, for smoother taste)

½ cup of warm water

Method:

Grate or blend the onion and strain the juice.

Mix 1–2 teaspoons of onion juice with warm water.

Optional: add a bit of honey if drinking.

Drink once daily in the morning, on an empty stomach, for 5 days.

Important: This is for internal use only.
Do not apply onion juice to your eyes — it can cause irritation or even damage.

 Bonus Natural Tips for Better Eyesight

Eat more greens – spinach, kale, and broccoli are full of lutein and zeaxanthin.

Stay hydrated – dryness can worsen eye strain.

Do eye exercises – try the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds.

Get enough sleep – your eyes repair while you rest.

 The Bottom Line

It is not possible for onions to miraculously improve your vision in just five days, but they are a nutritious meal that is high in antioxidants and can help protect and support your vision in a natural way over time. Your eyes will be grateful to you if you combine this practice with other healthy routines.