Macular degeneration is a disease that breaks down the macula, the small area in the center of your retina responsible for sharp, detailed vision

The macula lets you read, recognize faces, drive, and see fine detail. When it degenerates, you lose the ability to see clearly in the center of your visual field, though your peripheral (side) vision usually stays intact. This means you might see a blank or blurry spot directly in front of you while still being able to see what's happening around the edges.

There are two main types: dry macular degeneration, which is more common and develops slowly, and wet macular degeneration, which is less common but progresses faster and can cause more sudden vision loss. Both types are age-related—they occur almost exclusively in people over 50—but the speed and severity differ significantly between them.

Key Takeaways

  • Dry macular degeneration accounts for about 80 percent of cases and develops gradually as the macula thins over time.
  • Wet macular degeneration happens when abnormal blood vessels grow under the macula and leak fluid, causing faster vision loss.
  • Early signs include straight lines appearing wavy, colors looking duller, or needing more light to read.
  • An eye doctor can detect macular degeneration during a dilated eye exam, often before you notice symptoms.
  • Vision loss from macular degeneration is permanent, but treatments and devices exist to slow progression and help you adapt.

How dry macular degeneration develops

In dry macular degeneration, the light-sensitive cells in the macula gradually break down and die. As these cells deteriorate, your central vision becomes increasingly blurry or dim. The process is slow—some people notice changes over months, others over years—and it typically affects both eyes, though usually one eye is affected first.

Dry macular degeneration progresses through three stages. Early stage has few or no symptoms; you might not notice anything, but an eye doctor can see changes during an exam. Intermediate stage brings some vision loss and you may notice difficulty reading or need more light. Late stage causes significant central vision loss that affects daily activities like reading, cooking, or watching television.

The disease doesn't cause complete blindness because your peripheral vision remains. You'll always be able to see shapes and movement around the edges, which is why people with macular degeneration can often navigate spaces and recognize people by their outline or voice.

How wet macular degeneration develops

Wet macular degeneration occurs when abnormal blood vessels grow underneath the macula. These vessels are fragile and leak blood and fluid, which damages the macula more rapidly than in dry disease. Vision loss can happen over weeks or months rather than years, and it's often more severe.

Wet macular degeneration usually starts in one eye. If you notice sudden changes in your central vision—straight lines becoming wavy, a dark spot appearing, or colors looking distorted—contact an eye doctor immediately. Early treatment can slow the progression and preserve more vision than waiting.

About 10 to 15 percent of people with dry macular degeneration eventually develop the wet form. This is why regular eye exams matter even if you're not experiencing symptoms yet.

Risk factors and who gets macular degeneration

Age is the strongest risk factor—the disease is rare before age 50 and becomes more common with each decade after that. Family history matters significantly; if a parent or sibling has macular degeneration, your risk is higher. Smoking roughly doubles your risk compared to people who have never smoked.

Race and ethnicity play a role. Macular degeneration is more common in white populations than in Black, Hispanic, or Asian populations, though it occurs across all groups. High blood pressure, high cholesterol, and obesity increase risk. Some research suggests that diet matters—people who eat fewer leafy greens and more processed foods have higher rates.

You cannot catch macular degeneration from someone else, and it is not caused by eye strain, reading in dim light, or using screens. These are myths. The disease develops because of aging and genetic factors you cannot control, though some lifestyle changes may slow progression.

Early warning signs and when to see an eye doctor

Early symptoms are often subtle. You might notice that straight lines—like the edge of a doorway or lines on a page—appear wavy or bent. Colors may look less vibrant or duller than before. You might need more light to read comfortably, or small print becomes harder to see even with your regular glasses.

Some people notice a small dark or blank spot in the center of their vision. Others find that their eyes take longer to adjust when moving from bright light to dim light. These changes might be gradual enough that you don't notice them until someone points them out or you realize you're struggling with tasks you used to do easily.

If you're over 50, have a family history of macular degeneration, or smoke, schedule a dilated eye exam with an optometrist or ophthalmologist. During this exam, the doctor will place drops in your eyes to widen your pupils and look directly at your macula. This is the most reliable way to catch macular degeneration early, often before you notice symptoms yourself.

How macular degeneration is diagnosed

An eye doctor diagnoses macular degeneration through a dilated eye exam combined with imaging tests. During the exam, they look at the macula directly using a special lens and look for drusen—small yellow deposits under the retina that are a hallmark of the disease—or signs of blood vessel growth.

If macular degeneration is suspected, the doctor may order an optical coherence tomography (OCT) scan, which creates a detailed cross-section image of your retina and shows exactly where damage is occurring. For wet macular degeneration, a fluorescein angiography test may be done; dye is injected into your arm and photographs are taken as it flows through the blood vessels in your eye, showing where leakage is happening.

These tests are painless and take 20 to 30 minutes. The results tell your doctor which type of macular degeneration you have, how advanced it is, and whether treatment is needed.

What happens to your vision over time

Vision loss from macular degeneration is permanent—the damaged cells do not repair themselves. However, the rate of loss varies widely. Some people with dry macular degeneration experience minimal vision change over many years. Others progress to significant central vision loss within a few years. Wet macular degeneration typically causes more noticeable loss more quickly if left untreated.

The loss affects your ability to do detail work—reading, writing, recognizing faces at a distance, watching television, or cooking. It does not affect your ability to walk around, navigate spaces, or see what's happening in your peripheral vision. Many people with macular degeneration continue to live independently with adaptations and support.

Progression is not predictable for any individual. Your eye doctor can estimate your risk based on the stage of disease and other factors, but they cannot tell you exactly how fast your vision will change. This is why regular monitoring—usually every three to six months—matters.

Frequently Asked Questions

Will macular degeneration make me completely blind?

No. Macular degeneration causes loss of central vision, but peripheral vision usually remains intact. You will not lose the ability to see shapes, movement, or navigate spaces. Many people with advanced macular degeneration can still move around independently, though they may need help with reading and detailed tasks.

Can macular degeneration be prevented?

You cannot prevent macular degeneration if you have genetic risk factors, but you can reduce your risk or slow progression. Stop smoking if you do, maintain healthy blood pressure and cholesterol, eat a diet rich in leafy greens and fish, exercise regularly, and protect your eyes from UV light with sunglasses. Regular eye exams catch early changes before vision loss occurs.

Is macular degeneration the same as cataracts?

No. Cataracts cloud the lens of your eye and cause blurry vision throughout your visual field. Macular degeneration damages the macula and causes loss of central vision while peripheral vision stays clear. They are different diseases that require different treatments, though you can have both at the same time.

What's the difference between dry and wet macular degeneration?

Dry macular degeneration develops slowly as cells in the macula break down. Wet macular degeneration happens when abnormal blood vessels leak fluid under the macula and causes faster vision loss. Wet disease is less common but more serious. Treatments exist for wet macular degeneration but not yet for dry, though research is ongoing.

Can I still drive if I have macular degeneration?

That depends on how much central vision you have lost. Early macular degeneration may not affect driving, but as central vision loss progresses, driving becomes unsafe. Your eye doctor can tell you whether your vision meets your state's requirements for a driver's license. Many people with macular degeneration eventually stop driving and use other transportation.