Wet vs. Dry AMD: Key Differences and What They Mean for Your Vision

The defining feature of wet AMD is the growth of abnormal blood vessels beneath the macula, a process driven by a protein called vascular endothelial growth factor (VEGF). These new vessels are fragile and prone to leaking fluid or blood, which distorts the structure of the retina and damages the macula. If untreated, this leaking and bleeding can eventually lead to scarring of the outer retina, causing severe and lasting central vision loss.

Wet AMD can cause symptoms that appear quickly, sometimes over days. It is important to recognize these warning signs and act on them promptly.

• A sudden or gradual decline in the sharpness of central vision
• Straight lines appearing wavy or bent
• Blind spots or dark areas in the center of your vision
• Colors appearing washed out or less vivid

If you notice any of these symptoms, especially if they come on suddenly, contact a specialist or seek emergency eye care right away. Prompt treatment can make a meaningful difference in preserving your vision.

Wet AMD is treated with anti-VEGF medications, which are injected directly into the eye to block the protein responsible for abnormal blood vessel growth and leaking. Several anti-VEGF medications are currently available, and your specialist will recommend the one best suited to your situation. Before each injection, numbing eye drops are applied to the eye to minimize discomfort. Most patients tolerate the procedure well.

• Lucentis (ranibizumab): FDA-approved for wet AMD, typically given every four weeks
• Eylea (aflibercept): FDA-approved for wet AMD, given every four to eight weeks after initial loading doses
• Avastin (bevacizumab): FDA-approved for cancer and used off-label for wet AMD, given every four to six weeks
• Beovu (brolucizumab): FDA-approved for wet AMD, given every eight to twelve weeks after loading doses, and carries a risk of retinal vasculitis, which is inflammation of blood vessels in the retina
• Vabysmo (faricimab): A bispecific antibody that targets both VEGF and angiopoietin-2, FDA-approved for wet AMD and can be given every four to sixteen weeks after loading doses
• Eylea HD (high-dose aflibercept): An extended-dose formulation given every eight to sixteen weeks after loading doses

These medications can slow or stop the progression of wet AMD and, in some cases, help recover a degree of lost vision. However, wet AMD is a chronic condition that requires ongoing treatment and monitoring rather than a one-time solution.

Early and intermediate dry AMD are often managed with AREDS2 nutritional supplements, lifestyle modifications such as quitting smoking and protecting the eyes from ultraviolet light, and regular monitoring. For advanced dry AMD with geographic atrophy, Syfovre and Izervay are available to slow the rate at which the affected area expands, though they do not restore vision that has already been lost.

Wet AMD is treated with anti-VEGF intravitreal injections. Treatment usually begins with a series of monthly loading doses to stabilize the condition, followed by ongoing injections at intervals determined by how the eye responds. The primary goal is to stop or reduce leaking from abnormal blood vessels and preserve as much central vision as possible.

Anti-VEGF injections are the standard treatment for wet AMD and work by blocking the protein that drives abnormal vessel growth. Complement inhibitors, used for geographic atrophy in dry AMD, target a different pathway involving the immune system. These are entirely different drug classes addressing entirely different disease processes. Both conditions require long-term follow-up. Neither dry AMD nor wet AMD is resolved with a single treatment session, and ongoing care with your specialist remains essential regardless of which type you have.

Yes, the conversion from dry to wet AMD can happen relatively quickly, sometimes over days, which is why daily Amsler grid monitoring is so strongly recommended for patients with dry AMD. The grid is specifically designed to pick up the kind of line distortion that often signals this change before it becomes obvious. If you notice anything new, even if you are not sure it is significant, contact your specialist promptly rather than waiting for your next scheduled visit.

Avastin (bevacizumab) is FDA-approved for cancer but has been used off-label to treat wet AMD for many years. Large clinical studies have found it to be comparable in effectiveness to Lucentis (ranibizumab) for many patients. Your specialist will consider your specific situation, the stage of your AMD, and other individual factors when recommending a medication. Cost and dosing schedule may also factor into that conversation.

Numbing eye drops are applied before each injection, which significantly reduces discomfort. Most patients describe feeling pressure or a mild sensation during the procedure rather than sharp pain. Some mild soreness or irritation in the hours following the injection is common but typically resolves quickly. If you are anxious about the procedure, discussing your concerns with your specialist beforehand can help you feel more prepared.

The answer depends on the type and stage of AMD. Anti-VEGF injections for wet AMD can stabilize vision and, in some cases, lead to measurable improvement, but vision lost due to scarring or significant retinal damage may not be recoverable. For geographic atrophy, the available complement inhibitor medications slow progression but have not been shown to restore lost vision. Starting treatment as early as possible gives you the best chance of preserving what you have.

Wet AMD is a chronic condition, and most patients require ongoing treatment for the long term. While some patients are able to extend the time between injections as their condition stabilizes, stopping treatment entirely often allows the disease to become active again and vision to decline. Your specialist will work with you to find the least burdensome schedule that still keeps the disease under control.

Checking your Amsler grid daily, taking any prescribed supplements consistently, protecting your eyes from ultraviolet light with quality sunglasses, avoiding smoking, and managing conditions like high blood pressure are all steps that support your eye health between visits. Report any changes in your vision, even subtle ones, to your specialist rather than waiting to mention them at your next scheduled appointment.