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AMD Bro Eng 11/9/05 2:59 PM Page 1 > What do you mean by “clinically proven”? Vitalux * Ocular vitamins for Age-related Macular Degeneration AMD AMD Bro Eng 11/9/05 2:59 PM Page 2 What is AMD? Age-related Macular Degeneration (AMD) is a disease linked to age - specifically, people over age fifty. AMD is a chronic, age-related, degenerative disease of the macula, a very small and specialized area in the centre of the retina. The macula allows you to see fine details directly in front of you such as words in a book or images on television. So while the entire retina lets you see that there is a book in front of you, the macula lets you see what is written in the book. There are two types of AMD, Dry AMD and Wet AMD. Generally speaking, dry AMD progresses quite slowly and is usually less severe than the wet type. But both types damage the macula 2 AMD Bro Eng 11/9/05 2:59 PM Page 3 and both can take away your central vision, which means the images you see directly in front of you. Area Affected by AMD Retina Sclera Cornea Fovea Lens Iris Choroid Macula Optic Nerve > The eyeball with detail of the Retina and area affected by AMD. Because AMD affects only your central vision, you won’t ever be totally blind. You will still have your peripheral, or side vision. 3 AMD Bro Eng 11/9/05 2:59 PM Page 4 > What is Dry AMD? Most of the time, AMD will begin as the less severe dry type and, for 85–90% of people, it will remain that way. Dry AMD can develop in one eye or both. The early stage of dry AMD usually begins with the appearance of drusen. Drusen are small white or yellowish deposits that begin to accumulate in one of the deepest layers of the retina due to a breakdown in its normal function. You will not be aware that these deposits are forming. As the retinal layer continues to break down, an abnormal amount of drusen begins to build up. This build-up begins to disrupt the layers above it, eventually damaging the layer of photoreceptor cells (the cells that receive visual images from 4 AMD Bro Eng 11/9/05 2:59 PM Page 5 the lens), resulting in “blank” or blind spots in your central visual field. > How is it treated? Treatment of dry AMD is focused on monitoring and slowing the progression of the disease. First, your eye doctor is likely to suggest you begin taking specific highdose ocular vitamin supplements such as Vitalux*. He will also want to monitor your progress at specific intervals in his office, and he’ll ask you to monitor your vision at home with an Amsler Grid. Lifestyle modifications that will help to slow the progression of the disease will also be recommended. Your eye doctor will discuss all of these options with you. 5 AMD Bro Eng 11/9/05 2:59 PM Page 6 > What is Wet Age-related Macular Degeneration? Wet AMD involves blood in the deepest layers of the retina. In a process called choroidal neovascularization (CNV), new and abnormal blood vessels spontaneously begin to grow beneath the retina and push their way up through it. These new vessels leak their contents of blood and fluid into the retina which then separates and lifts up the other layers like a blister. This can cause rapid, severe and permanent central vision loss in a matter of weeks. Although wet AMD can occur spontaneously, it’s usually preceded by dry AMD, which makes regular check-ups especially important. 6 AMD Bro Eng 11/9/05 2:59 PM Page 7 What is Vitalux*? Vitalux* is a brand of vitamins specially developed for the eyes of people over the age of fifty. It contains a clinically proven formulation that may delay the progression of Age-related Macular Degeneration (AMD) and help to preserve vision – that is why your eye doctor recommended it. 7 AMD Bro Eng 11/9/05 2:59 PM Page 8 > What do you mean by “clinically proven”? For years, experts presumed that nutrition played a role in the development of AMD. So in 1992, the U.S. National Eye Institute initiated the Age-Related Eye Disease Study (AREDS) to see if high doses of antioxidant vitamins, minerals and zinc would have any effect on people with the dry form of AMD. The goal was to determine if these supplements could help stop, or slow down, the progression of AMD and resulting vision loss. The study followed over 3,600 people between the ages of 55 and 80. Most had AMD at different stages from mild to severe, while some did not have AMD at all. 8 AMD Bro Eng 11/9/05 2:59 PM Page 9 Participants were divided into 4 main groups depending on the severity of their AMD. Each group was subdivided again and given a different formulation of vitamins and minerals. In the end, after almost seven years of study, the results were analyzed and proved that people with the highest risk of developing advanced AMD could significantly lower that risk by 25%, simply by supplementing their diets with a specific vitamin and mineral formulation every day1. 9 AMD Bro Eng 11/9/05 2:59 PM Page 10 The target formulation is1 : Vitamin/Mineral Beta carotene Vitamin C Vitamin E Zinc Copper Total Daily Dose 25 000 IU 500 mg 400 IU 80 mg 2 mg > Is the Vitalux * formulation the same as the AREDS study formula? Vitalux* contains the same ingredients as the AREDS target formulation. Two Vitalux* AREDS tablets provide the same daily dose of vitamins and minerals that were proven to reduce the risk of advanced AMD and prevent vision loss. In addition, Vitalux* can provide 6 mg of lutein, plus zeaxanthin, which 10 AMD Bro Eng 11/9/05 2:59 PM Page 11 were shown in other studies to benefit people with AMD. > What are Lutein and Zeaxanthin? Lutein and zeaxanthin are two carotenoids primarily found in dark green leafy vegetables like spinach. Carotenoids are the yellow/orange pigments that give fruits and vegetables their colour. You may be surprised to learn that these two carotenoids are also found in the macula of your eyes. Lutein and zeaxanthin make up the bulk of the pigments in your macula and the only way your body gets them is through diet. In fact, the yellow appearance, and the name “macula lutea”, are due to the dense concentration of lutein. 11 AMD Bro Eng 11/9/05 2:59 PM Page 12 > If I eat all the right foods, won’t I get the same vitamins and minerals that are in Vitalux*? Technically, yes. But practically speaking, obtaining the high doses of the specific antioxidant vitamins and minerals found in Vitalux* would be virtually impossible from diet alone. 12 AMD Bro Eng 11/9/05 2:59 PM Page 13 > Can I take a multivitamin instead of, or in addition to, Vitalux *? The quantities of antioxidant vitamins and minerals often found in daily multivitamins are far below what's been proven to prevent the progression of AMD. Vitalux* on the other hand, is specially formulated to help delay the progression of AMD something daily multivitamins cannot do. There is usually no harm in taking both types of vitamins, however it's worth checking with your doctor. > What is the difference between Vitalux* AREDS and Vitalux*-S? Vitalux*-S does not contain any beta-carotene. Vitalux*-S was created especially for people who Continued > 13 AMD Bro Eng 11/9/05 2:59 PM Page 14 smoke, or are recent ex-smokers, but who need the AMD fighting benefits of an ocular vitamin. The Beta Carotene and Retinol Efficacy Trial (CARET), a large scale clinical study, discovered a potential link between high doses of beta-carotene and increased growth of lung cancer tumours in smokers2. For that reason, Vitalux*-S for smokers contains everything found in Vitalux* AREDS, but no beta-carotene. > What are the risks for developing AMD, or for its progression once you have it? The risk factors for both possibilities are similar. If one or more of the following risk factors Continued > 14 AMD Bro Eng 11/9/05 2:59 PM Page 15 applies to you, you are at risk: ❚❚ You are a smoker ❚❚ You have a family history of AMD ❚❚ You are female ❚❚ Your diet lacks fruits and vegetables ❚❚ You have high blood pressure ❚❚ You have blue or light-coloured irises ❚❚ You have a fair complexion/ light skin ❚❚ You spend a lot of time outdoors in bright sunlight ❚❚ You’re overweight References: 1. A Randomized, Placebo-Controlled, Clinical Trial of High-Dose Supplementation with Vitamins C and E, Beta Carotene, and Zinc for Age-Related Macular Degeneration and Vision Loss. AREDS Report 8. Archives of Ophthalmology, October 2001. 2. Effects of a Combination of Beta Carotene and Vitamin A on Lung Cancer and Cardiovascular Disease. The New England Journal of Medicine, May 1996. 15 AMD Bro Eng 11/9/05 2:59 PM Page 16 For more information on AMD visit: www.amdcanada.com www.amdalliance.org www.cnib.ca www.eyesite.ca www.ffb.ca www.opto.ca www.macdegen.com www.visionhealth.ca www.eyeclub.ca Novartis Ophthalmics Novartis Pharmaceuticals Canada Inc. Mississauga, ON L5N 2X7 *Vitalux is a registered trademark. VTX-050701 E