What wet age-related macular degeneration is

Wet age-related macular degeneration (wet AMD) happens when abnormal blood vessels grow under the macula—the part of your retina that lets you see fine detail and color. These vessels leak fluid or blood, which damages the light-sensitive cells in that area. Unlike dry AMD, which progresses slowly over years, wet AMD can cause vision loss in weeks or even days.

The word "wet" refers to the fluid accumulation. Your eye is not actually wet in the way you might imagine; rather, fluid from leaking blood vessels collects under the retina and distorts your central vision. This is why wet AMD is considered more urgent than dry AMD—the damage happens faster, and early treatment can slow or stop further vision loss.

Key Takeaways

  • Wet AMD occurs when abnormal blood vessels under the macula leak fluid or blood, causing rapid vision changes in your central sight.
  • Common early signs include straight lines appearing wavy, a dark or blurry spot in the center of your vision, and colors looking less bright.
  • An eye doctor can diagnose wet AMD using imaging tests like optical coherence tomography (OCT) or fluorescein angiography, which take pictures of the back of your eye.
  • Treatment options include injections into the eye, laser therapy, or photodynamic therapy, and starting treatment within days of symptoms can preserve more vision.
  • Regular monitoring with an Amsler grid at home helps you catch vision changes early, which is critical because wet AMD progresses quickly.

How wet AMD develops and why it matters

In wet AMD, your eye produces abnormal blood vessels in a layer called the choroid, which sits beneath the retina. These vessels are fragile and leak because they lack the normal structure that keeps blood contained. The leaked fluid pushes the retina up and away from its normal position, disrupting the cells that send visual signals to your brain.

The speed of wet AMD is what sets it apart. While dry AMD may take years to noticeably affect your vision, wet AMD can cause significant central vision loss in a matter of weeks. This is why eye doctors consider it a medical urgency—the sooner you start treatment, the more vision you are likely to preserve. Some people notice changes within days of the first leak.

Early warning signs you should recognize

The most common early sign is that straight lines begin to look wavy or bent. If you look at a door frame, window edge, or grid pattern and it appears distorted, that is a classic signal of fluid under the macula. This happens because the accumulated fluid pushes the retina out of shape.

You may also notice a dark, blurry, or blank spot in the center of your vision—the area you use to read, recognize faces, or see fine details. Colors may appear less bright or less vivid than they used to. Some people describe it as looking through a smudged window in the middle of their sight while the edges remain clear.

Any of these changes warrant a call to your eye doctor the same day, if possible. Wet AMD does not cause pain, so you will not feel anything wrong—you will only see the changes. Do not wait to see if it improves on its own.

How doctors diagnose wet AMD

Your eye doctor will start with a visual acuity test to measure how well you see at different distances. They will then examine the back of your eye using a dilated eye exam, where drops widen your pupil so they can see the retina clearly.

To confirm wet AMD and see exactly where the leaking vessels are, your doctor will order imaging tests. Optical coherence tomography (OCT) uses light waves to create a detailed cross-section picture of your retina, showing fluid accumulation and the thickness of the macula. Fluorescein angiography involves injecting a dye into your arm and taking pictures as it flows through the blood vessels in your eye—this shows which vessels are leaking and where.

These tests are not painful, though angiography requires an injection and takes about 20 to 30 minutes. The images give your doctor a clear map of the problem, which guides the choice of treatment.

Treatment options and how they work

The most common treatment is anti-VEGF injections. VEGF is a protein that signals your eye to grow new blood vessels. Anti-VEGF drugs block this signal, which slows the growth of abnormal vessels and reduces leaking. Your doctor injects the medication directly into the eye—the needle is very thin, and the eye is numbed first so you feel pressure but not pain. You typically receive injections every four to eight weeks, though the schedule depends on how your eye responds.

Laser photocoagulation uses a focused laser beam to seal leaking blood vessels. This treatment works best when the abnormal vessels are not directly under the center of the macula, because the laser also damages some healthy retinal tissue. If the leak is in the very center, laser treatment may cause more vision loss than it prevents.

Photodynamic therapy (PDT) combines a light-sensitive drug injected into your arm with a special laser applied to the eye. The drug activates when the laser hits it, damaging the abnormal vessels while sparing most of the surrounding retina. PDT is less commonly used now that anti-VEGF injections have become more effective, but it remains an option for certain cases.

Your doctor will recommend the treatment that best fits your specific situation—the location and size of the leak, how long you have had symptoms, and your overall eye health all factor into the choice.

What to expect during and after treatment

Anti-VEGF injections take only a few minutes. Your eye will be numbed with drops, and the doctor will clean the eye surface with an antiseptic solution. You will feel the needle entering, but because the eye is numb, you should not feel sharp pain—mainly pressure or a slight scratching sensation. After the injection, your eye may feel irritated for a few hours, and your vision may be blurry for the rest of the day.

You will need to return for follow-up visits every four to eight weeks so your doctor can check whether the treatment is working and whether you need another injection. Some people need injections for months or years; others may eventually need them less often or stop them altogether if the abnormal vessels stabilize.

Laser and PDT treatments are also brief—usually 10 to 20 minutes—and you can go home the same day. Your vision may be blurry or you may see a dark spot in your vision for a few hours afterward, but this typically clears.

Monitoring your vision at home

Between doctor visits, you can watch for changes using an Amsler grid—a simple printed square with a dot in the center and a grid of lines. You hold it at arm's length, focus on the center dot with one eye at a time, and look at whether the lines appear straight and evenly spaced. If lines look wavy, broken, or blurry, or if you see a new dark spot, contact your eye doctor right away.

Check your Amsler grid every day, ideally at the same time. Many people keep one on their bathroom mirror or refrigerator as a reminder. Your eye doctor can give you a printed grid, or you can print one from the American Academy of Ophthalmology website.

Early detection of changes—even small ones—makes a real difference in how much vision you preserve. If you catch a new leak within days rather than weeks, treatment can stop it before it causes significant damage.

Frequently Asked Questions

Will wet AMD make me completely blind?

Wet AMD affects only your central vision, not your peripheral (side) vision. Even with advanced wet AMD, you retain the ability to navigate and move around. Early treatment significantly slows vision loss, and many people maintain useful vision for years with ongoing care. Complete blindness from wet AMD alone is uncommon.

How often do I need injections?

Most people receive injections every four to eight weeks initially, but the schedule varies based on how your eye responds. Some people eventually space them out to every 12 weeks or longer. Your doctor will adjust the timing based on imaging tests and how your vision is doing.

Can wet AMD come back after treatment stops?

Yes, wet AMD can recur even after successful treatment. This is why ongoing monitoring is important. Some people need injections indefinitely, while others may have periods where they do not need treatment. Regular eye exams and home monitoring with an Amsler grid help catch any return of leaking vessels early.

Is the injection needle really in my eye?

Yes, but the needle is extremely thin—much thinner than a sewing needle—and your eye is completely numbed before the injection. You will feel pressure and possibly a scratching sensation, but not sharp pain. The injection takes seconds. Most people find it less uncomfortable than they expected.

What if I cannot afford treatment?

Talk to your eye doctor or the clinic's financial counselor about payment plans, manufacturer assistance programs, or low-cost clinics in your area. Some pharmaceutical companies offer free or reduced-cost medications for people who cannot pay. Do not skip treatment because of cost without exploring these options first—delaying treatment costs you vision.