Failing vision or decreased eyesight may be considered normal with age, but is considered as a side-effect of modern lifestyle. If you properly nourish your eyes over the years, then aging may not automatically result in decreased eyesight.

Age-related macular degeneration (AMD) and cataract at two most common causes of increased eyesight in elderly. They may cause blindness in human beings. However, the actual reason of decreased eyesight is damage by the free radicals. Such damage can be prevented by having an antioxidant rich diet.

Foods

There are foods that can help you to fight decreased eyesight and improve your eyesight.

Black Currant

You need whole foods for nourishment of your eyes and black currant is a wonderful solution. It is more powerful than other foods which help in improving eyesight, such as lutein, zeaxanthin, or bilberry. Black currant provides highest level of anthocyanins– 190 to 270 mg per hundred grams. This is the highest anthocyanin level that you will find in any food. Black currants also offer essential fatty acids which help in reducing inflammation.

Even though you can use black currant seed oil available as capsule, it is better to eat the whole food to get more benefits.

Bilberries

Bilberry is another very important food for eye health. It's a close relative of blueberry. It is considered as a powerhouse of nutrients for the eyes. The food provides anthocyanins in high amount. It is very useful because it helps in reversing macular degeneration. A study published in 2005 in the Advances in Gerontology Journal found that rats with muscular degeneration and early senile cataract, did not show any impairment of their lens and retina when they were given 20mg bilberry extract for each kg of body weight.

Kale and Other Leafy Greens

For correcting decreased eyesight and improving eyesight, lutein and zeaxanthin can help in a big way. These are present in macula of your eye, the small and central part of the retina important for the central vision, in high concentration. Lutein protects central vision besides helping in absorption of blue light. Lutein is found in macular pigment and zeaxanthin is present in your retina.

Lutein and zeaxanthin are present in green leafy vegetables. Kale and spinach are very rich in lutein. Other foods that contain lutein are carrots, orange, squash, collards, green peas, corn, broccoli, yellow fruits and vegetables.

Organic pastured egg yolk

Organic pastured egg yolk also provides lutein, which is good for your eyesight. To get the best benefit, you need to eat them raw because once you heat them the lutein and zeaxanthin is damaged. Damaged elements cannot prevent degeneration of macula and they also lose the micronutrients present in them.

Raw eggs will give you 0.25 mg of lutein and zeaxanthin each in one egg, coaches highly absorbable.

Salmon

Omega-3 helps in the functioning of the cells in the eyes. Fish offer omega-3 fats to your body. However, in the recent times, environmental pollution has made it risky to eat fish regularly because of the contaminations, especially mercury contamination. If you eat wild-caught Alaskan Salmon, then you can have your omega-3 without the risk of mercury contamination.

Omega-3 fat DHA is present in your eyes retina and it is important because it helps in improving eye health and protecting retinal function. Omega-3 fat rich foods also such slow macular degeneration. Wild-caught Alaskan Salmon offers astaxanthin, which is an important antioxidant that can prevent blindness. It offers benefit against several eye related problems, including cataract, Glaucoma, diabetic retinopathy, retinal arterial occlusion, etc. It is a very crucial antioxidant which is present only in that specific fish.