Wet AMD is caused by abnormal blood vessels growing into the retina, which can leak fluid or bleed into the layers of retina. This can result in scar tissue forming in and around the macula, causing rapid and severe loss of central vision.
Treatment is available for wet AMD, most commonly with a class of drugs known as anti-VEGF (vascular endothelial growth factor). These drugs are injected directly into the eye to inhibit the growth of abnormal blood vessels. They work to stop or slow loss of vision but do not completely cure wet AMD; rather, they work to preserve your best vision for as long as possible. This will often require ongoing treatment, in most cases for an indefinite period of time.