随着年龄相关的黄斑变性的愿景

如果你被诊断出患有老年性黄斑Degeneration (commonly abbreviated as AMD), you’re not alone. It is estimated that as many as 16 million people in the United States have AMD. In fact, it’s a leading cause of blindness in people age 60 and older.

AMD是一种影响视网膜中心的条件,称为黄斑。Macula是对我们最敏锐的愿景负责的眼睛的一部分,我们在阅读,驾驶和执行需要良好,尖锐或直截了当的愿景的其他活动时使用。通常,来自AMD的黄斑的变化是渐进的,但在某些情况下,视力损失更快,更加明显。

有两种不同类型的AMD:


干燥黄斑变性:about 90% of people diagnosed with AMD have dry AMD. This condition occurs when the tissues of the macula begin to age and thin. Dry AMD is also associated with tiny yellow deposits called drusen that form beneath the retina. People with dry AMD typically experience a less severe degree of vision loss, and it develops slowly. Early AMD always starts out as dry, but in about 10% of cases it can develop into wet AMD.

湿式黄斑变性:在视网膜下细腻,异常的血管形成。这些脆弱的血管泄漏了视网膜下方的血液和液体,导致它扭曲或疤痕。这就是湿AMD人们丧失敏锐视力的原因。湿amd比干amd更快地进展,具有更严重的效果 - 可能包括完全的中央视力丧失。虽然这种类型的AMD仅对患有疾病的约10%的人影响,但它负责90%的严重视力丧失与AMD相关。

AMD的风险因素

While the causes of AMD may be unknown; age, lifestyle and nutrition appear to play a role. Things like:

  • 遗传危险因素:
    • 年龄
    • AMD的家庭历史
    • 皮肤/眼睛颜色:浅色皮肤和眼睛的人更有可能发展AMD
  • Rick factors you can control:
    • smoking - smokers are three to four times more likely to develop AMD compared to nonsmokers
    • 饮食 - 某些抗氧化剂如维生素C和E,叶黄素和锌的饮食可能是危险因素
    • 肥胖,高血压和高胆固醇 - 所有人都可以促进AMD的发展
    • excessive exposure to sunlight - protect your eyes from ultraviolet rays by wearing sunglasses

Symptoms of AMD

AMD对Macula造成损坏,这是视网膜的一部分,为我们提供了尖锐的中央愿景,我们需要执行需要高清,直接视野的活动。所以,你看到的近距离或距离可能是模糊或朦胧的。读取时可能需要更亮光或可能难以使明亮的光对低光。随着疾病的进步,视力或面孔可能存在黑暗或空白斑点可能会变得模糊。其他迹象包括视觉扭曲,例如出现波浪或物体的直线,从而大于或小于它们。

  • 模糊的视野
  • 视力中心地区的黑暗或空区
  • Distortion of straight lines

监控您的愿景

AMD is a condition that should be monitored closely. You can check your vision with an Amsler grid, a tool that helps you watch out for subtle changes in your vision. Click to view or print anAmsler Grid.

您的AMD中的一些变化只能通过眼科护理专业人员检测,因此请按照指示保留您的眼科医生约会是很重要的。

AMD的管理

湿式黄斑变性
Wet AMD is treated with injected medications and/or laser surgery by sealing off the leaking blood vessels. These are usually brief and painless outpatient procedures that slow and sometimes even reverse the progression of the degeneration. A small, permanently dark spot may be left where the laser makes contact, however.

干黄斑变性
由于外周视力不受影响,许多干燥的AMD的人借助低视点光学器件(例如放大器)继续在正常的生活方式中继续。目前没有干燥AMD的治疗。已经显示出在ARED和AREDS2研究中使用的眼部维生素的特定配方有助于降低中度至高级AMD患者进展的风险。*

presAREDS 2 contains the exact nutrient formula recommended by the National Eye institute (NEI) based on the AREDS2 Study.

附加信息

*这些语句没有被评估的Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.


AREDS和AREDS2是美国卫生和人类服务部(HHS)的注册商标。

照片由国家卫生研究所国家眼科学院提供。


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