There are two carotenoids which are found in the retina, Zeaxanthin is one of them. Zeaxanthin is a yellow colored pigment which is mostly found in the plants. It has a number of strong antioxidant properties.
The main function of Zeaxanthin in the retina is to protect the eyes from harmful blue light. It acts as a shield and filter to this light in order to protect its harmful effect on the eyes.
Zeaxanthin also protect the eyes from macular degeneration, age related cataracts,and other leading causes which could result in blindness over the age of 60 years.The main sources of Zeaxanthin are collard greens,spinach,corn and kale.
Lutein And Zeaxanthin:
The carotenoids Lutein and Zeaxanthin are found in the retina.Zeaxanthin is dominant in the center of the macula which is about 75% of the total retinal space. Lutein is found at the periphery of the retina and predominates with 67% of sometimes more.
The concentration of both these carotenoids is very less in the human tissues. The increase in the macular pigments is made through dietary supplements. Some studies have proved the co relation between the pigment density of macular and the reduction in age related macular degeneration risks.
It has been found that more the quantity of pigment will be there the less will be the chances of macular degeneration. Actually with the growing age the amount of pigment in the retina also decreases which results in macular degeneration.
Food Sources Of Zeaxanthin:
The list of food sources which carry these carotenoids in large quantity is given below:
- Sweet yellow Corn.
- Whole Kernel.
- Raw Spinach.
- Drained, cooked or boiled Collards.
- Raw Lettuce.
- Drained, green Beans.
- Drained, cooked or boiled Broccoli which is without salt.
- Drained, cooked or boiled Celery which is without salt.
- Raw Peaches.
- Raw baby Carrots.
- Raw Celery.
