Age-Related Macular Degeneration

AMD is a common cause of vision loss in people over 50. It may develop slowly over years or quickly resulting in severe loss of central vision.

It affects the macula, a part of the retina that helps you see fine details. The disease is caused by a slow breakdown of light-sensitive cells in the macula.

Causes

Age-related macular degeneration is a common cause of central vision loss in older people. It can be painful and make it difficult to do daily activities, such as reading and driving.

It is a disease that develops gradually and if it is detected early can be treated. This is why it is recommended to have regular dilated eye exams with your doctor.

During your eye exam, your doctor will check the back of your eye for fluid, blood, or yellow deposits. They may also ask you to look at an Amsler grid, a pattern of straight lines that looks like a checkerboard. If some of the lines appear wavy to you or if some are missing, it can be a sign that you have wet AMD.

Your doctor will look at your retina with an instrument called an angiographer or an optical coherence tomography (OCT). An angiography uses dye to see if there are new vessels or if any are leaking fluid or blood into the macula.

If your doctor thinks that you have wet AMD, they will inject an anti-VEGF (vascular endothelial growth factor) drug into a numbed eye. This slows or stops the growth of new blood vessels. It can improve your sight if you start it early before the blood vessels grow too large and obstruct your central vision.

Some people who get wet AMD may see hallucinations in the form of visual images that are not real. These hallucinations are known as Charles Bonnet Syndrome.

You can control your risk of developing macular degeneration by managing all medical conditions that are linked to AMD, such as diabetes and cardiovascular disease. Maintain a healthy weight, eat a diet rich in fruits and vegetables, and exercise regularly.

It is important to have regular dilated eye exams to catch AMD before it progresses to severe vision loss. Taking supplements of antioxidant vitamins, such as vitamin E and beta-carotene, can reduce your risk of developing macular degeneration by lowering the levels of inflammation in your eyes.

You can also ask your doctor about treatment options for macular degeneration, such as photodynamic therapy (PDT). This combination of drugs is often used to treat wet AMD.

Symptoms

Age-related macular degeneration, or AMD, is a common eye condition in older adults that slowly damages your central vision, which you use for detailed tasks such as reading and driving. It can be hard to spot early signs of AMD, but an eye care professional - your optometrist or ophthalmologist - can diagnose the condition and treat it before you lose vision.

During your examination, your doctor will check the back of your eyes and the macula - a small area in the center of your retina that detects light. This part of your retina is responsible for central vision, which is the ability to see clearly straight in front of you.

In the dry form of macular degeneration, the macula gets thinner and gradually loses its function over time. You may notice changes in your central vision, such as distortion or blind spots. You can also notice changes in your side or peripheral vision, which is the ability to see fine detail or objects near the edge of your field of vision. A great post

The dry form of macular degeneration can progress to a wet version of the disease, which is characterized by abnormal blood vessels that grow underneath the macula and leak fluid or blood. This can cause sudden blurriness and a total loss of central vision.

If you have a wet form of macular degeneration, your doctor will inject your eyes with anti-angiogenic drugs - medications that deaden the growth of new blood vessels and stop them from leaking fluids. They can help keep your vision from getting worse, and some people have regained some of their lost vision after taking these medicines.

Other treatments for the wet form of macular degeneration include laser treatment, which uses light to destroy leaking blood vessels. It can be effective, but the risk of losing vision is high.

For the dry form of macular degeneration, your doctor can recommend dietary supplements that contain antioxidant vitamins to slow the progression of the disease. These vitamins are found in foods such as red and green fruits and vegetables, nuts, and legumes.

Diagnosis

Age-Related Macular Degeneration (AMD) is a progressive eye disease that can lead to blindness. This is the most common form of vision loss in older people.

It can develop gradually over time, affecting only one eye or both eyes. Early stages of macular degeneration are often subtle and go unnoticed. In late-stage (advanced) AMD, central vision fails completely and is difficult or impossible to see.

The macula is a part of the retina, which converts light into electrical signals that travel to your brain. When the macula gets damaged, the center of your field of vision is blurry, wavy, or dark.

During a comprehensive eye exam, your doctor can look at the macula with a bright light or a special test. This can help diagnose AMD in its early stages.

Your doctor may also ask you to look at a pattern of straight lines called an Amsler grid. If some of the lines are wavy or missing, that could be a sign of AMD.

Dry macular degeneration is the most common form of AMD, characterized by a buildup of small yellow deposits, called drusen, beneath the macula. About 85 to 90 percent of people with macular degeneration have this type.

About 10 to 15 percent of people with AMD have a more severe form, called wet macular degeneration. In wet AMD, abnormal blood vessels develop underneath the retina and macula. These leak blood and fluid, creating a bulge in the macula that can make your central vision worse.

Treatments for AMD can slow or stop the progress of the disease and preserve your existing vision. The most important step is to prevent the disease from getting worse by seeing your doctor regularly for annual dilated eye exams and telling them about any changes in your vision.

You can protect your vision by maintaining a healthy diet and getting regular exercise. These activities can reduce your risk of developing macular degeneration and other age-related eye conditions. You can also get a daily dose of antioxidant vitamins and minerals that are known to improve the health of the retinas.

Treatment

Treatment for Age-Related Macular Degeneration involves a series of steps to slow the disease. The goal is to preserve your vision for as long as possible.

The first step is an eye exam. Your doctor may dilate your pupils with eye drops to look at your retina - the layer of tissue at the back of your eyes that processes light. They'll also check for tiny yellow deposits under the retina called drusen which are a common early sign of AMD.

Your doctor will also use a test called an Amsler grid to check for defects in your central vision. If the grid has straight lines that are faded, broken, or distorted, this is a sign of macular degeneration.

Another test your doctor may do is an OCT scan. This uses laser light reflection to produce 3D images of blood flow in your eye. This can help your doctor detect changes in the blood vessels and pinpoint where they are.

Anti-VEGF (antivascular endothelial growth factor): This treatment blocks the production of VEGF, a protein that produces new blood vessels. It can sometimes improve vision, especially in the early stages of wet AMD.

Photodynamic therapy (PDT): Your eye doctor uses a combination of an injectable light-sensitive drug and a laser to destroy extra blood vessels in the eye. This is the most effective treatment for wet AMD.

Aflibercept, bevacizumab, faricimab-svoa, pegaptanib, and ranibizumab: These medications block the creation of blood vessels that leak fluid and cause wet macular degeneration. They can restore some vision that was lost due to this disease, though you might need several injections to get the best results.

Low-vision aids: These devices can help people with wet AMD or a dry form of the disease get the most out of their remaining vision. They have special lenses or electronic systems that make nearby objects look larger and more recognizable.

The most common treatment for wet AMD is a drug called anti-VEGF. This medication blocks the activity of VEGF, so it stops the abnormal development of new blood vessels that cause damage in wet AMD. It's the most effective treatment available for wet AMD and is highly successful in restoring sight to many patients. Check this out