A lumbar sympathetic nerve block is a special test to help your doctor find the cause of your symptoms. During the test, an anesthetic (numbing) medication is injected near your spine. This âblocksâ the sympathetic nerves in that region.
Lutein is an antioxidant carotenoid a pigmented nutrient that is responsible for the yellow colors of fruits and vegetables and is present in the highest quantities in dark, leafy green vegetables. You're born with a certain amount of lutein in your eye, but your body doesn't reproduce it.
Food Sources. Lutein and zeaxanthin are found together in many food sources. Dark green leafy vegetables are the primary source of lutein and zeaxanthin, but they are also present in lesser amounts in other colorful fruits and vegetables, such as broccoli, orange peppers, corn, peas, persimmons and tangerines.ood Sources. Lutein and zeaxanthin are found together in many food sources. Dark green leafy vegetables are the primary source of lutein and zeaxanthin, but they are also present in lesser amounts in other colorful fruits and vegetables, such as broccoli, orange peppers, corn, peas, persimmons and tangerines.