How Much Do You Know About Age-Related Macular Degeneration?
Millions of Americans are affected by age-related macular degeneration (AMD). It's a disease that damages the eye's central vision. To learn more about macular degeneration, take this quiz. It is based on information from the National Eye Institute and the American Academy of Ophthalmology.
1. People who have the greatest risk for developing AMD are 60 or older.
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The risk increases with age. But AMD can occur during middle age.
2. AMD develops as one of two forms, wet or dry.
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Dry AMD is the most common form. This form gets worse so slowly that a person may not notice any vision problems for years. The wet form of AMD at first causes straight lines to appear wavy. This is because blood vessels leak blood beneath the macula. This distorts vision. Wet AMD affects vision more quickly and dramatically than the dry form and is more likely to lead to loss of central vision. Central vision is also called straight-ahead vision. It allows a person to read, drive, and recognize people's faces.
3. AMD leads to total blindness.
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AMD can cause a loss of central vision. This makes a person's vision become fuzzier. Over time, they have problems reading, driving, and recognizing people's faces. Most people with AMD still have their peripheral vision.
4. Smokers are more likely to develop AMD than nonsmokers.
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Family history of AMD is also a main risk factor. Other risk factors include:
Gender. Women are more likely to develop AMD than men.
Being overweight
Being older than 50
Having high blood pressure, heart disease, or high cholesterol
Race. Whites are more likely to develop AMD than African Americans.
5. A blurred spot in the middle of your vision is one symptom of AMD.
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Other symptoms include slightly blurred vision overall, needing extra light for reading, and trouble recognizing a face until you are very near the person. For a person with the wet form of AMD, straight lines appear wavy.
6. One way to help prevent AMD is to eat plenty of leafy green vegetables.
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The cause of AMD isn't yet known, but genes and environmental factors may both play a role. Researchers say that one way to help prevent macular degeneration is to eat a healthy low-fat diet. Include plenty of fruits and vegetables, particularly leafy green vegetables such as spinach and kale. Other good health habits include getting regular exercise, not smoking, wearing sunglasses with UV protection, and getting regular eye exams.
7. AMD is hard to diagnose.
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An eye care provider can diagnose AMD with several tests. The provider will check your vision and also dilate your eyes to look at your retina by using a slit lamp and special lenses. If your provider thinks that you have wet AMD, you may need a test called fluorescein angiography. This test helps your provider know if leaking blood vessels in the macula can be treated. Optical coherence tomography (OCT) is also often used to help diagnose wet AMD. It can be used to see how the disease responds to treatment. OCT lets your provider see the retina as a cross-section and see any fluid that may have leaked into or behind the macula.
A corneal ulcer is an open sore on the cornea. A corneal ulcer may cause redness, pain, increased tears, and pus or mucus draining from the eye. It may also cause blurry vision and swelling of the eyelid.
A subconjunctival hemorrhage is when a blood vessel breaks open in the white of the eye. It causes a bright red patch in the white of the eye. It is similar to a bruise on the skin. This type of hemorrhage is common. It can look quite alarming, but it is usually harmless.