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Dry AMD and Wet AMD: Understanding Both Forms of Macular Degeneration
How Wet AMD Develops
Wet AMD is less common but more aggressive. It develops when abnormal blood vessels grow beneath the retina and leak fluid or blood into the macula, causing rapid damage to central vision.
The process that drives wet AMD is called choroidal neovascularization, which means abnormal new blood vessels grow from the layer beneath the retina up into the macula. These vessels are fragile and prone to leaking. The fluid and bleeding they cause can damage the macula quickly, often within days to weeks. Although wet AMD accounts for a smaller share of AMD cases, it is responsible for the majority of severe vision loss from the disease.
The symptoms of wet AMD tend to appear suddenly and worsen quickly. Straight lines may look wavy or bent, a symptom called metamorphopsia. A dark or blank spot may appear in the center of your vision. Colors can look washed out or faded. These changes can occur in one eye while the other seems fine, which makes them easier to overlook unless you check each eye separately every day.
Any stage of dry AMD can convert to wet AMD at any time. Wet AMD is always considered late-stage disease, regardless of where the dry AMD was in its progression. This is why daily home monitoring with an Amsler grid is recommended for all AMD patients. If you notice new waviness or a dark spot, contact your eye doctor the same day for urgent evaluation. Prompt treatment gives you the best chance of preserving vision.
Treatment Options for Each Form
Dry and wet AMD are managed very differently. Knowing which form you have, and what stage it has reached, determines which treatments apply to your situation.
For intermediate dry AMD, a specific combination of vitamins and antioxidants known as AREDS2 supplements has been shown to reduce the risk of progression to advanced AMD. For late dry AMD with geographic atrophy, two FDA-approved medications, pegcetacoplan and avacincaptad pegol, have been shown to slow the rate at which the areas of retinal cell loss expand. Neither of these medications restores vision that has already been lost, but both can help slow further deterioration when used under the care of a specialist.
The primary treatment for wet AMD is anti-VEGF therapy. A retinal specialist injects medication directly into the eye at regular intervals to stop the growth of abnormal blood vessels and reduce leakage. Available medications include ranibizumab, aflibercept, bevacizumab, and faricimab. Many patients stabilize or even improve their vision with prompt treatment. Delaying anti-VEGF therapy can result in permanent central vision loss, so acting quickly when symptoms appear is critical.
Faricimab works differently from older anti-VEGF medications by targeting two pathways involved in abnormal vessel growth. This approach allows some patients to extend the time between injections, which can reduce the treatment burden over time. For dry AMD, photobiomodulation, a form of light therapy, has received FDA authorization and has shown promise in clinical studies for patients with intermediate dry AMD. Patients receiving complement inhibitor therapy for geographic atrophy also face a slightly increased risk of converting to wet AMD, which their doctor monitors for at each visit.
Lifestyle Strategies for AMD
Certain lifestyle choices can meaningfully reduce the risk of AMD progression in both its dry and wet forms. These changes work best when combined with regular professional monitoring.
Smoking roughly doubles the risk of progressing to advanced AMD and accelerates the disease in both its dry and wet forms. Quitting smoking is widely considered the single most impactful lifestyle change a person with AMD can make. The benefit of quitting applies at any age and at any stage of the disease.
A Mediterranean-style diet rich in dark leafy greens, orange and yellow vegetables, and fish supports overall eye health by reducing oxidative stress and inflammation that contribute to macular damage. Regular aerobic exercise, along with managing blood pressure and cholesterol, adds further protection. These habits support long-term retinal health and work alongside any medical treatment your eye doctor recommends.
All AMD patients are encouraged to use an Amsler grid every day. This simple paper grid allows you to check each eye separately for changes in your central vision. Hold it at normal reading distance, cover one eye, and focus on the center dot. If any lines look wavy, bent, or missing, or if a dark area appears that was not there before, contact your eye doctor the same day. Do not wait for your next scheduled appointment, as early treatment of wet AMD produces significantly better outcomes.
Frequently Asked Questions
These questions address some of the decisions and clarifications that come up most often when patients are learning about dry and wet AMD.
The timing of follow-up visits depends on your stage. Early dry AMD may only require annual monitoring, while intermediate or advanced dry AMD typically warrants more frequent exams, sometimes every few months. Your eye doctor will recommend a schedule based on your specific findings. Do not rely solely on scheduled visits; daily Amsler grid checks at home are essential between appointments.
AREDS2 supplements are appropriate only for people with intermediate or advanced dry AMD in at least one eye. They are not recommended for early-stage AMD or as a general eye health supplement. The formulation includes vitamin C, vitamin E, lutein, zeaxanthin, and zinc at specific doses. Before starting any supplement, confirm with your eye doctor that your AMD stage warrants them and that there are no interactions with other medications you take.
This depends on how your eye responds over time and the treatment protocol your retinal specialist follows. Some patients require ongoing injections at regular intervals to maintain their results, while others may be able to space treatments further apart. Stopping treatment without your doctor's guidance can allow the disease to reactivate and cause rapid vision loss. Any changes to your treatment schedule should be made in close consultation with your specialist.
Having AMD in one eye does significantly increase the risk of developing it in the other eye. This is especially true for wet AMD, where one affected eye is considered a strong risk factor for the fellow eye. Your eye doctor monitors both eyes at each visit and will advise you on what to watch for at home. Checking each eye separately on the Amsler grid every day is particularly important in this situation.
AMD damages central vision but does not affect peripheral, or side, vision. This means that even in advanced stages, most people with AMD retain enough peripheral vision to move around and perform basic daily tasks. However, the loss of central vision makes activities like reading, driving, and recognizing faces very difficult. Early detection and appropriate treatment can help slow the progression and preserve functional vision for as long as possible.
This is a question your eye doctor is best positioned to answer based on your current level of vision in each eye, the stage of your AMD, and any other visual factors. Driving requirements vary by state. Many people with early or intermediate AMD continue driving safely, while those with advanced AMD may need to stop. Be honest with your doctor about any difficulty you are having behind the wheel, and ask for a functional vision assessment if you are unsure.
See Our Team at NewView Eye Center
If you have been diagnosed with AMD or are concerned about changes in your central vision, our eye doctors at NewView Eye Center are here to guide you with expertise and personalized care. Serving patients across Northern Virginia, we are committed to helping you understand your diagnosis and take the right steps to protect your vision. We welcome you to schedule a comprehensive evaluation at our Reston or Leesburg office.
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