Macular Degeneration is the Leading Cause of Blindness in Older Americans黃斑變性是導致老年人失明的美國人
In the past, macular degeneration was poorly understood and there were no treatment options.在過去，性黃斑變性是了解甚少，和有沒有治療的選擇。 Recently, there have been dramatic improvements in the treatment of the wet type of the disease, which can result in rapid visual loss if left untreated.最近，有顯著改善，在治療濕類型的疾病，可能導致在快速視力喪失，如果得不到治療。
Research is also being conducted to help slow down the visual loss associated with advanced dry AMD.研究也正進行，以幫助拖慢視力喪失相關的先進的幹AMD公司。
The macula is the center of the retina responsible for sharp vision.黃斑部是該中心的視網膜負責尖銳的視野。 It is critical for tasks such as reading and driving.這是至關重要的任務，如閱讀和駕駛。
Aging changes in the macula include deposits underneath the retina, called drusen, and pigment alterations that may result in reduced oxygen and nutrient exchange.老化的變化，在黃斑下的存款，包括視網膜，所謂的drusen ，改建和色素可能導致的在減少，氧氣和養分的交流。 As a result, retinal function is impaired and retinal tissue may be lost, in a process called atrophy.因此，視網膜功能受損和視網膜組織可能會丟失，在一個過程，所謂的萎縮。 These changes constitute dry AMD, which affects 90 percent of patients with the age-related macular degeneration.這些變化構成幹AMD公司，從而影響到90 ％以上的患者與年齡相關性黃斑變性。 Generally, dry AMD causes a very slow loss of vision.一般來說，乾燥， AMD公司的原因很慢，損失的視野。 However, when atrophy is extensive or involves the center of the macula, severe loss of vision may occur.然而，當萎縮是廣泛的或涉及中心的黃斑部，嚴重虧損的視野，可能會發生。
Although there is no treatment for the slowly progressing dry type of AMD, there are some things you can do to protect your vision.雖然沒有治療緩慢進展幹式AMD公司，也有一些事情你可以做，以保護您的視野。 If you smoke, you should try to quit, since smoking doubles your risk for developing the disease and for further loss of vision.如果你吸煙，你應該嘗試戒菸，因為吸煙雙打您的風險，為發展中國家的疾病和進一步損失的視野。 A healthy diet that includes green leafy vegetables and low fat intake has been shown to slow down the progression of the condition as well.健康的飲食習慣，其中包括綠葉蔬菜和低脂肪攝取量已顯示放緩的進展情況，以及。
A large clinical study, called the AREDS study, showed that supplemental vitamins containing high concentrations of vitamins A, C, E and zinc can slow down the progression of the condition.大量的臨床研究，被稱為areds研究顯示，補充維生素，含有高濃度的維他命A ， C ， E和鋅可以放緩的進展情況。
Lutein and omega-3 fatty acids may be beneficial for the retina.葉黃素和omega - 3脂肪酸可能有利於視網膜。 A large-scale clinical study sponsored by the National Eye Institute is being conducted to determine whether these vitamins can benefit patients with AMD.一個大型的臨床研究主辦，並由全國眼科研究所正進行，以確定是否這些維生素可以受惠的病人與AMD公司。
For the wet type of AMD, an exciting new drug was approved by the Federal Drug Administration in June 2006 called Lucentis.為濕型AMD公司，一個令人振奮的新的藥物被批准由聯邦藥物管理局在2006年6月所謂的Lucentis藥物。 For the first time in the history of treating wet AMD, Lucentis offers a 30 percent to 40 percenOften, patients require three treatments initially, and then they are monitored.為歷史上還是第一次治療濕AMD公司， Lucentis藥物提供了30 ％至40 percenoften ，病人需要治療的最初三，然後他們進行監測。 If leakage recurs, treatment is re-administered.如果洩漏復發，治療是重新管理。
With all forms of AMD, there are three important guidelines.與一切形式的AMD公司，有三個重要的準則。
First , it is critical to catch the disease early. 首先，這是關鍵要趕上疾病的早期。
Second , it is important to start any treatments as soon as any leakage or bleeding begins to preserve as much vision as possible. 第二 ，這是很重要的開始，任何的治療，盡快任何滲漏或出血開始盡可能地保持現狀，視野越好。 This means regular eye exams are vital for anyone over age 55, especially for anyone with a family history of retinal disease.這意味著，定期眼睛檢查是至關重要的，任何人超過55歲，特別是對任何一個家庭的歷史，視網膜疾病。
Third , you should try to reduce your risk factors by watching your diet, avoiding smoking and second-hand smoke exposure and taking vitamin supplements if advised by your ophthalmologist. 第三 ，您應盡量減少您的風險因素，通過觀看你的飲食，避免吸煙和二手煙霧的暴露和服用維生素補充劑，如果告知您的眼科醫生。
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