What Is Macular Degeneration?
Understanding AMD and How It Can Affect Your Central Vision
Changes in vision are often associated with getting older, but not every change should be considered a normal part of aging. Age-related macular degeneration (AMD) is an eye disease that can gradually affect the sharp, central vision you rely on for activities like reading, driving, recognizing faces, and seeing fine details.
Because early macular degeneration may cause few or no noticeable symptoms, regular comprehensive eye exams are an important part of detecting changes and protecting your vision.
At Infocus Eye Care, we believe understanding your eye health is an important part of caring for it. Here's what you should know about macular degeneration, its symptoms, and the importance of early detection.
What Is Macular Degeneration?
Macular degeneration affects a small but important part of the retina called the macula.
The retina is the light-sensitive tissue at the back of the eye, and the macula is responsible for the detailed central vision that allows you to see objects directly in front of you clearly.
As AMD progresses, damage to the macula can cause central vision to become blurry, distorted, or less detailed. Peripheral, or side, vision is generally preserved, so AMD does not typically cause complete blindness. However, advanced disease can make many everyday activities significantly more difficult.
What Are the Two Types of AMD?
There are two primary forms of age-related macular degeneration: dry AMD and wet AMD.
Dry Macular Degeneration
Dry AMD is the more common form. It develops as the macula gradually changes with age and typically progresses slowly over time.
During an eye exam, your provider may notice small yellow deposits beneath the retina called drusen. While some drusen can occur as part of normal aging, certain changes in their size, number, or appearance can be associated with AMD.
Some people with dry AMD maintain good vision for many years, while others experience gradual central vision loss. Dry AMD can also progress to more advanced stages or develop into wet AMD.
Wet Macular Degeneration
Wet AMD is less common but can cause more rapid and significant changes in vision.
It occurs when abnormal blood vessels grow beneath the retina. These vessels can leak blood or fluid, damaging the macula and causing sudden changes in central vision.
Because wet AMD can progress quickly, new or sudden changes in central vision should be evaluated promptly.
What Are the Symptoms of Macular Degeneration?
Early AMD may not cause noticeable symptoms, which is one reason routine eye examinations are so important.
As the condition progresses, you may notice:
Blurry or fuzzy central vision
Straight lines appearing wavy or distorted
Difficulty seeing fine details
A dark, blurry, or empty area in the center of your vision
Colors appearing less vivid
Difficulty recognizing faces
Needing brighter light for reading or close-up tasks
Difficulty adjusting between bright and dim environments
If you notice a sudden change in your central vision or straight lines suddenly appear distorted, contact your eye care provider promptly.
Who Is at Risk for Macular Degeneration?
Age is one of the biggest risk factors for AMD, particularly after age 50. Other factors that may increase your risk include:
A family history of AMD
Smoking
Cardiovascular disease or high blood pressure
Being overweight or obese
Certain genetic factors
Some risk factors, such as age and genetics, can't be changed. However, healthy lifestyle choices—including avoiding smoking, staying physically active, eating a nutrient-rich diet, and managing cardiovascular health—can support your overall eye health.
How Is Macular Degeneration Detected?
A comprehensive dilated eye exam allows your provider to examine the macula and retina for signs of AMD, sometimes before you've noticed any changes in your vision.
Your evaluation may also include specialized imaging such as Optical Coherence Tomography (OCT). OCT provides detailed images of the layers of the retina and can help your provider identify and monitor changes over time.
Patients diagnosed with AMD may also be asked to monitor their central vision at home using an Amsler grid, which can help identify new distortion or changes between appointments.
Can Macular Degeneration Be Treated?
Treatment depends on the type and stage of AMD.
There is currently no treatment that completely reverses damage caused by macular degeneration. However, certain nutritional supplements may help slow progression in some people with intermediate or advanced AMD. Your eye doctor can determine whether these supplements are appropriate for you.
Wet AMD can often be treated with medications injected into the eye that target the abnormal blood vessels responsible for leaking and swelling. Early diagnosis and treatment are particularly important because they can help preserve as much vision as possible.
Why Early Detection Matters
Like many eye diseases, macular degeneration can begin changing the eye before you realize anything is wrong.
Regular comprehensive eye exams allow your provider to monitor the health of your retina, identify early signs of AMD, and recommend additional testing or treatment when necessary.
If you've already been diagnosed with macular degeneration, keeping your recommended follow-up appointments is especially important. Monitoring allows your eye care team to identify progression and respond to changes as quickly as possible.
Protecting Your Vision as You Age
Getting older doesn't mean significant vision loss is inevitable. Understanding your risk factors, maintaining healthy habits, paying attention to changes in your vision, and keeping up with routine eye care can all play a role in protecting your sight.
At Infocus Eye Care, our team is committed to detecting and managing eye disease at every stage. If you're due for a comprehensive eye exam, have a family history of macular degeneration, or have noticed changes in your central vision, schedule an appointment with our office.
When it comes to macular degeneration, early detection gives us the best opportunity to monitor changes, begin treatment when appropriate, and help preserve your vision for the future.