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.
All varieties of cooked summer and winter squash, peas, yellow corn, beet greens, pumpkin, Brussels sprouts, broccoli, romaine and iceberg lettuce, asparagus and carrots are good food sources of lutein and zeaxanthin and contain between 1 to 4 milligrams of lutein and zeaxanthin per serving.eafy Vegetables â Richest Food Sources. A single serving of cooked, frozen spinach contains close to 30 milligrams of lutein and zeaxanthin, which is the maximum amount present in any food, according to the USDA National Nutrient Database.