A person’s eyesight is probably the most important of the 5 senses. Eyes are complex organs that require different nutrients and vitamins for proper functioning. Common conditions like dry eyes, age-related macular degeneration (AMD), diabetic retinopathy, cataracts, and glaucoma, can significantly impact a person’s eyes. Though various factors might be responsible for this condition, poor or insufficient nutrition influences it the most. Here is a list of vitamins one must consume to improve eye health.

Vitamin A
Vitamin A has antioxidant characteristics to help reverse or slow down oxidative damage to the cells and DNA. These have a significant role in several age-related conditions. Vitamin A is crucial and one of the quintessential vitamins for eye health. It enables the eyes to yield pigments, allowing eyes to see the full spectrum of light. Vitamin A also nourishes other parts of the eye.

Vitamin A deficiency causes Xerophthalmia, a condition that damages the cornea. It is also a prevalent cause of preventable blindness. People who consume less Vitamin A suffer from dry eyes. Of course, using dry eye drops is an option, but doing so won’t fix the body’s deficiencies. Thus, in addition to the dry eye drops, one must consume foods rich in Vitamin A. These include orange foods like cantaloupes, sweet potatoes, carrots, and green leafy vegetables. In addition, pumpkin, red pepper, and squash also have a good Vitamin A content.

Vitamin C
Vitamin C also plays a crucial role in eye health. It shields the eye against UV light damage. Naturally, the Vitamin C concentration in the eyes reduces with age. Vitamin C also guards the eyes against oxidative damage, a factor in two of the most prevalent age-related cataracts – nuclear and cortical cataracts. Cortical cataracts develop on the lens edges, whereas nuclear cataracts form deep in the center. People who consume sufficient Vitamin C in their meal plan experience reduced cataract progression. In addition, they also have clearer lenses. Some Vitamin C-rich foods to be added to daily meals are broccoli, oranges or orange juice, grapefruit juice, blackberries, and Brussels sprouts. 

Vitamin E
It comprises antioxidants that shield fatty acids from dangerous oxidation. Since the retina has a high concentration of fatty acids, proper Vitamin E intake is crucial for maintaining eye health. However, severe Vitamin E deficiency might result in blindness and retinal degeneration. Sadly, there is no conclusive evidence of whether supplements offer added benefits if one gets adequate Vitamin E from the food consumed.

Studies suggest that adding over seven mg of Vitamin E to daily routine can lower the risk of age-related cataracts by six percent. A few of the best Vitamin E sources include vegetable oils like flaxseed oil, peanuts, sunflower seeds, safflower oil, wheat germ, soybean, corn oil, asparagus, and almonds. 

Riboflavin or Vitamin B2
It is a B Vitamin that is essential for maintaining good eye health. Riboflavin, an antioxidant, can lower oxidative stress in the body, especially in the eyes. Scientists are studying its impact in preventing cataracts as continued Riboflavin deficiency is usually the prevalent cause of cataracts. A person can meet his/her Riboflavin deficiency by consuming foods like fortified cereals, yogurt, milk, and oats.

Vitamin B1 or Thiamine
B1 vitamin is also vital for the eye health. It also helps with cell function and converting food into energy. Studies suggest that consuming B1 Vitamin with other Vitamins can lower the risk of developing cataracts, but it needs more conclusive research. It is also called an anti-stress vitamin and reduces inflammation in the body. Research also proves that the B1 vitamin can help treat uveitis, an inflammatory eye condition that might result in blindness. 

In addition, thiamine is also a potential cure for early diabetic retinopathy. Some of the foods rich in thiamine include whole grains. Thiamine is also added to pasta, bread, and breakfast cereals.

Vitamin B3 or Niacin
The primary function of B3 or niacin is to convert food into energy. It works as an excellent antioxidant. Niacin also has a role in avoiding glaucoma, a condition wherein the optic nerve in the eye gets damaged. However, one must consume Niacin supplements with caution. High niacin consumption (1.5-5 grams per day) can have severe side effects on the eyes, such as inflammation in the cornea, macular degeneration, and blurred vision. But no evidence per se indicates that eating foods rich in niacin has any adverse effects. A few of the top Vitamin B3 sources include legumes, peanuts, and mushrooms.

Vitamins B6, B9, and B12
Several B Vitamins, like B12, B9, and B6, also help maintain eye health. The combination of these vitamins reduces homocysteine levels. It is a protein that is responsible for eye inflammation. High homocysteine levels can also put a person at risk of developing age-related macular degeneration.

Some foods rich in Vitamin B6 or pyridoxine are leafy greens and chickpeas, and some good folic acid or Vitamin B9 sources include sunflower seeds, beans, peanuts, and dark leafy greens. Vitamin B12 sources are dairy products, yogurt, cheese, low-fat milk, nutritional yeast, and fortified cereals.

Tips for maintaining eye health
In addition to these Vitamins, one must also follow the following tips for maintaining eye health:
Wearing sunglasses : Sun damage can aggravate the risk of AMD or cataracts. So, it is suggested to shield the eyes using sunglasses, which block 99-100 percent UVA and UVB rays.

Exercising regularly : It is important to exercise regularly to reduce the risk of high blood pressure, diabetes, and high cholesterol.   These diseases are often responsible for vision or eye-related problems. So, with regular exercising, one can keep them at bay.

Giving eyes some rest : If a person has a high screen time, one often forgets to blink their eyes. It can be tiring for the eyes. So, to reduce the strain on the eyes, follow the 20-20—20 rule. After every twenty minutes, look away for twenty seconds at anything twenty feet in front.

Wear protective eyewear : While playing sports, working at the construction or factory site, or doing repair work around the home, one must wear protective eyewear to prevent injuries.