What Are Anti-VEGF Injections and How Do They Treat Wet Macular Degeneration?

What Are Anti-VEGF Injections and How Do They Treat Wet Macular Degeneration?

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What Are Anti-VEGF Injections and How Do They Treat Wet Macular Degeneration?

Published on July 15, 2026
Close up of ophthalmologist using artificial oculus sample during appointment with a patient at her office.

Wet age-related macular degeneration (wet AMD) is one of the leading causes of vision loss among older adults, affecting the part of the eye responsible for sharp, detailed central vision. While wet AMD can be a serious condition, advances in treatment have changed the outlook for many patients.

Today, anti-VEGF injections are considered the primary treatment for managing wet AMD and helping preserve vision. For patients diagnosed with wet AMD, understanding how these injections work, what to expect during treatment, and why consistency matters can make the process feel much less overwhelming.

What Is Wet AMD?

Age-related macular degeneration affects the macula, the small area in the center of the retina responsible for clear, focused vision. The macula allows you to perform everyday activities such as reading, recognizing faces, driving, and seeing fine details.

There are two main forms of AMD:

  • Dry AMD is the most common form, and occurs when the macula gradually becomes thinner.
  • Wet AMD is less common but more aggressive form of the condition that develops when abnormal blood vessels begin growing beneath the retina. Because these blood vessels are fragile, they can leak fluid or blood into the macula, causing swelling, distorted vision, and damage to the retinal cells responsible for clear central vision. Because wet AMD can worsen quickly and lead to permanent vision changes, prompt diagnosis and timely treatment are critical for protecting sight. 

Symptoms of wet AMD may include:

  • Central vision that is distorted or blurry
  • Lines that are supposed to be straight appear wavy
  • Dark or empty spots in the center of vision
  • Difficulty recognizing faces
  • Sudden vision changes

How Do Anti-VEGF Injections Treat Wet AMD?

Anti-VEGF injections work by targeting a protein called vascular endothelial growth factor (VEGF). VEGF plays an important role in stimulating the growth of new blood vessels. In wet AMD, excessive VEGF causes abnormal blood vessel growth beneath the retina.

These new vessels are weak and prone to leaking, which contributes to macular swelling and vision damage. Rather than reversing all existing damage, these treatments are designed to slow or stop disease progression and preserve as much vision as possible. Anti-VEGF medications block the activity of VEGF, helping to:

  • Reduce the abnormal growth of blood vessel
  • Decrease fluid leakage into the retina
  • Control macular swelling
  • Protect remaining retinal function
  • Stabilize or improve vision in many patients

Common Anti-VEGF Medications for Wet AMD

Several medications are used to treat wet AMD. Two commonly recognized anti-VEGF drugs include Eylea and Lucentis.

Both medications have helped transform wet AMD treatment, allowing many patients to maintain independence and continue daily activities that rely on clear central vision. Your retina specialist will determine which medication and treatment schedule are best based on your individual condition, medical history, and response to therapy.

Eylea

Eylea (aflibercept) works by blocking VEGF and another related growth factor called placental growth factor. By targeting these pathways, Eylea helps reduce leakage and swelling in the retina. One benefit of Eylea is that some patients may be able to maintain vision improvements with longer intervals between injections once their condition is controlled. Treatment schedules vary depending on each patient’s response.

Lucentis

Lucentis (ranibizumab) was one of the first anti-VEGF medications specifically developed for eye conditions involving abnormal blood vessel growth. It works by blocking VEGF activity in the eye, reducing fluid buildup and helping stabilize vision.

What Happens During an Anti-VEGF Injection?

Many patients feel nervous when they first hear they may need an eye injection. However, anti-VEGF injections are performed as an outpatient procedure and are typically completed in just a few minutes.

Before the injection, your eye will be carefully prepared:

  1. The eye is numbed with anesthetic drops or medication to help ensure comfort.
  2. The eye area is cleaned to reduce the risk of infection.
  3. A small amount of medication is injected into the vitreous, the gel-like substance inside the eye.
  4. Your eye is examined afterward to ensure everything looks normal.

Most patients describe feeling pressure or mild discomfort rather than significant pain. Afterward, some people may notice temporary redness, irritation, or the sensation of having something in the eye. These symptoms typically improve quickly. Your eye care team will provide instructions for what to watch for after treatment and when to schedule your next appointment.

Why Consistent Treatment Matters

One of the most important factors in managing wet AMD is staying consistent with treatment. Anti-VEGF injections are not usually a one-time procedure.

The medication gradually wears off, and ongoing treatment is often necessary to keep abnormal blood vessel activity under control. Skipping appointments or delaying injections can allow leakage and swelling to return, potentially leading to additional vision loss.

Many patients begin with more frequent injections and then transition to a maintenance schedule once their condition stabilizes. Treatment plans are personalized and may involve monthly injections, longer intervals, or adjustments based on how the retina responds. Regular monitoring through comprehensive eye exams and retinal imaging allows your ophthalmologist to determine whether additional treatment is needed.

The Importance of Early Detection and Treatment

Wet AMD can cause permanent damage to the macula if left untreated. Once retinal cells are damaged, lost vision may not be fully restored. This is why recognizing symptoms and seeking care quickly can make a significant difference.

Early treatment with anti-VEGF injections can help limit damage and give patients the best opportunity to preserve their remaining vision. Patients with AMD may also benefit from:

  • Regular dilated eye exams
  • Monitoring vision changes at home with an Amsler grid
  • Managing overall health conditions that may affect eye health
  • Following their prescribed treatment schedule

Trust New Vision Eye Center for Advanced Wet AMD Care

A diagnosis of wet AMD can feel concerning, but modern treatments provide effective options for managing the condition and protecting vision. Anti-VEGF injections, including medications such as Eylea and Lucentis, have become a critical tool in helping patients preserve their ability to see clearly.

At New Vision Eye Center, our experienced team provides comprehensive retinal care with a focus on early diagnosis, personalized treatment plans, and ongoing support. If you have been diagnosed with wet AMD or are experiencing changes in your vision, scheduling an evaluation can help you understand your options and take proactive steps toward protecting your sight.

Contact us today to learn more about wet AMD treatment and whether anti-VEGF therapy may be right for you.

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