Monday, June 3, 2019
Eye Nutrition for Optimal Vision and Performance
fondness Nutrition for Optimal batch and Performance many a(prenominal) athletes put emphasis on training, fueling, and rest, but many do non focus on the importance of good shopping centersight. Optometrists estimate up to 80 pct of the information we accumulate during a sporting competition comes from our malls and 95% of all physical movement is controlled visually and triggers the first movement of the athlete. (1,2,3) Even pith sight that is s saplessly blurred bear reduce performance. (4)EYE ANATOMYThe major components of the eye that affect performance and overall quite a little be the macula, retina and the lens.macula is an oval-shaped highly pigmented yellow spot near the center of the retina of the eyet1. It is responsible for central, high resolution/ pungency vision. The macula is yellow in color and it absorbs excess somber and ultraviolet light that enter the eye, and acts as a natural sun block for the retina. t2Retina is the layer at the back of the eyeball containing cells that is are sensitive to light and where a visual image is formed.t3t4Lens covers the front of the eye and its role (along with the cornea) is to focus light on the retinaNUTRITIONWhat types of foods you put in your body not only impacts performance but impacts your eyes. A large-scale research project conducted by the National eyeball Institute found there are several(prenominal) nutrients that help protect our eyes. The most important ones are beta carotene, vitamin C, Vit D, Vit E, lutein, zeaxanthin, coat and omega 3 fats (5).Beta Carotene (Precursor to Vit A) is an antioxidant.Helps produce pigment in the retina of the eye and promotes good vision especially in low light (night vision). Sources include apricots, broccoli, cantaloupe, carrots, dark green leafy vegetables, pink grapefruit, pumpkin, spinach, sweet potatoes.Vit C is a peeing soluble essential nutrient and an important antioxidant. The eyes need relatively high levels of high Vit C to function properly. One of its main roles is to support wee blood vessels to and around the eyes. The lens of the eye is also highly concentrated with the nutrient(5). Sources include Brussels sprouts, bell peppers, broccoli, berries and citrus fruit.Vit D (D3 cholecalciferol)Has been shown to positivity impact vision and reduce retinal inflammation (6,). Food sources include cod liver oil, Atlantic pickled herring, salmon, mackerel , sardine and tuna packed in oil, fortified cereals/dairy/soy/tofu products, eggs and mushrooms.Vit E (d-alpha tocopherol) is one of our bodys most powerful fat soluble antioxidants. Higher intake of vitamin E can increase the level in the retina. Vitamin E is also found in the lens. It protects cells of the eyes from revile and provides ocular protection (5). Sources include wheat germ, almonds, sunflower seeds, hazelnuts, groundnuts, peanut butter and sweet potatoes.Lutein and Zeaxanthinthese powerful carotenoids are naturally present in the macula. They are part of the retina responsible for central vision. These vital nutrients work to filter 40-90% of the harmful blue light, the kind of light that can damage the macula. These nutrients act like sunscreen for your eyes. They can increase the pigment density in the macula. The greater the pigment density means better retina protection and a lower risk of macular regression (5). These antioxidants cannot be produced by our bodies on their own, so they must be obtained through diet and/or supplements. Sources include egg yolk, broccoli, corn, green leafy vegetables (kale, collards, spinach, turnip greens) and peas.Zinc (Zinc Oxide)is an essential mineral. It helps get vitamin A from the liver to the retina for eye-protective melanin production. Proper amounts of zinc help with ocular protection, night vision and cataract prevention. Sources includes fortified cereals, legumes of all kinds (black eyed peas, kidney beans, lima beans) lean red meat, poultry, seafood and pumpkin seeds.Omeg a 3 Fatty Acids (Fish Oil) ii types docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA.) They are major components of nervous and retinal tissues and are highly concentrated in the ocular tissues. They help promote healthy commove production necessary for healthy and comfortable eyes, protect tiny vessels within the eyes and low levels of these fatty acids can be linked to dry eye syndrome (7,8,9). Sources include salmon, tuna, sardines and anchovies.Eye Health and PerformanceThe thicker and denser the macular pigment the to a greater extent your eyes are protected. This thickness also reduces glare and light sensitivity along with up(a) photo stress recovery, contrast sensitivity, and processing speed (10). Since the eyes and brain are connected, a millisecond difference in seeing the ball for moral is a difference between a strike and a home run. A 95-mile-per-hour fastball takes less than half a second to get to the plate. A player must decide to swing in approximatel y 0.458 seconds. That means the hitter must see the ball and decide whether to swing or not.Eye Health for Macular Degeneration and CataractsApproximately 10% of people between 66 to 74 years of age will have findings of macular degeneration. The prevalence increases to 30% when they are between 75 to 85 years of age (11). Macular degeneration is when you have a loss of vision in the center of the visual field (the macula) because of damage to the retina. It is a major cause of blindness and visual impairment in older adults.Cataracts are another common eye problem. By age 80, more than half of all Americans either have a cataract or have had cataract surgery. Cataracts are a medical condition in which the lens of the eye becomes progressively cloudy, resulting in blurred vision.SUMMARYProtecting your eyes and having optimal vision starts with the food on your plate. Maximizing the thickness of your macula pigment optimizes sports performance and decreases your chances of macular d egeneration and cataracts. Aim for a diet high in green, leafy vegetables such as spinach, kale, and collards, salmon, tuna, and other oily fish, eggs, nuts, beans, other non-meat protein sources, and oranges and other citrus fruits or juices.ReferencesArie B. Sports Vision How enhancing your vision can give you that extra edge in competition. Peak Performance 20031886-8.Werner W. Contact lens fitting for sports. Contactologia 20002292-4.Spinell MR. Contact lenses for athletes. Optom Clin 1993357-76.Griffiths G. Eye dominance in sport. Optometry Times2003 43(16)34-40.SanGiovanni JP, Chew EY, Clemons TE, et al for Age-Related Eye ailment Study Research Group. The relationship of dietary carotenoid and vitamin A,E, and C intake with age-related macular degeneration in a case-control study AREDS Report No. 22. Arch Ophthalmol. 2007125(9) 1225-1232Bottom of Form6. Lee.V, Rekhi.E, Hoh Kam.J, Jeffery.G. Vit D refuvenates ageing eyes by reducing inflammation, clearing amyloid beta and imp roving visual function. Neurobiolaging 2011 33(10) 2382-2389.Bonnielin. S, West.S Caulfield. L, Bressler.S, ,The Impact of Fish and Shellfish Consumption on Age Related Macular Degeneration. Opthalmology 117 (12) 2395-2401, December 20108. Sangiovanni JP, Agrn E, Meleth AD, Reed GF, Sperduto RD, Clemons TE, Chew EY. omega-3 Long-chain unsaturated fatty acid intake and 12-y incidence of neovascular age-related macular degeneration and central geographic atrophy AREDS report 30, a prospective cohort study from the Age-Related Eye Disease Study. American Journal of Clinical Nutrition 2009 Dec90(6)1601-7.Chua B, Flood V, Rochtchina E, Wang JJ, Smith W, Mitchell P. Dietary fatty acids and the 5-year incident of age-related maculopathy. Arch Ophthalmol. 2006 124(7) 981-98Wooten BR, Hammond BR. Macular pigment influences on visual acuity and visibility. Prog Retin Eye Res 2002 Mar21(2) 225-40.AgingEye Times (2009-05-19). Macular Degeneration types and risk factors. Agingeye.net. Retrieved 2011-01-11t1Plagiarized from Wikipediat2Plagiarized from http//www.flashcardmachine.com/504-eyes.htmlt3Plagiarized fromhttp//www.oxforddictionaries.com/us/definition/american_english/retinat4These should be taken from an article or textbook and properly cited.