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Experience consultant-led care for age-related macular degeneration
Age-related macular degeneration is estimated to affect more than 600,000 people in the UK, which is a number that is expected to grow in the future.
Although there isn’t currently an effective treatment that can reverse the effects of age-related macular degeneration, there are steps that you can take to minimise your risks and live with the condition should you develop it.
Age-related macular degeneration (AMD) is a very common eye condition and the leading cause of severe and permanent vision loss affecting people aged 60 and over.
Contrary to what many people believe, age-related macular degeneration doesn’t cause total blindness. However, it can significantly impair your vision, and many people with the condition find that it makes their day-to-day lives much harder.
Macular degeneration affects a part of the eye called the macula. This is an area of cells found within the retina — the section of the eye that senses light and turns it into signals that are sent to the brain to tell us what we can see.
The macular is only around 5mm across but it is essential for our central vision, our ability to see colour and to see fine details.
Atrophic or dry AMD is by far the most common type of age-related macular degeneration, accounting for around 85-90% of cases.
This type of AMD occurs when the macula becomes thinner with age, causing the cells to deteriorate and eventually die. Some people with dry AMD will also develop yellow deposits on the macula, called drusen. These deposits can distort your vision, making it harder to make out details.
Unfortunately, the cells of the macula won’t regenerate after they die, meaning that if you are affected, your vision will get progressively worse.
Far less common, but no less serious, is the ‘wet’ type of AMD. It is characterised by abnormal blood vessel growth. These blood vessels leak blood and fluid into the retina, distorting and interrupting your vision.
Over time, this bleeding can cause scarring which permanently damages your vision. Wet AMD can only develop if you have the dry variety first. Fortunately, only around 10-15% of cases of dry eye lead to the wet form of the condition.
Another difference is that the symptoms of wet AMD can cause much more rapid vision loss. For this reason, if you have any indication of wet AMD, or your ophthalmologist diagnoses it, it’s crucial that you start treatment to preserve your sight right away.
As such, the symptoms also take a long time to manifest and are very subtle at first. Most people with age-related macular degeneration won’t be diagnosed as a result of a visit to their eye doctor prompted by symptoms. However, if you attend regular comprehensive eye exams, the condition will almost certainly be picked up at one of these appointments.
That’s not to say that there aren’t any age-related symptoms to be aware of. Some signs of AMD include the following:
Age-related macular degeneration can affect one or both eyes, and may develop at different rates in each eye. If only one eye is affected, it may be harder to notice since the healthy eye may overcompensate for vision problems in the other.
Nevertheless, research indicates that there are some risk factors that could increase the likelihood that you will be affected by this condition. These include:
Age-related macular degeneration is most often seen in people who are over the age of 60.
Some research suggests that AMD runs in families, and if you have blood relatives with AMD, chances are you will experience it too. Studies have identified over 30 genes associated with the risk of developing AMD. The presence of these genes doesn’t guarantee that you will definitely develop AMD, but just that you may have a higher risk of doing so.
Macular degeneration has been found to be more common in Caucasians, followed by Chinese and Hispanic people. Those who are of African descent are the least likely to suffer from AMD.
Smoking isn’t only bad for your general health — it can also have a negative effect on the health of your eyes and vision. Smoking tobacco products or even being regularly exposed to tobacco smoke significantly increases your risk of age-related macular degeneration.
Current smokers are up to four times more likely to have AMD than people who have never smoked, and smokers are also more likely to develop AMD up to 10 years earlier than those who have never smoked.
If you are overweight or obese, you will automatically increase your risk of developing a variety of different health conditions, from diabetes and high blood pressure to heart disease and arthritis. Studies have also found that people who are obese are more likely to develop moderate to severe age-related macular degeneration.
Cardiovascular diseases are fairly common and refer to conditions that affect the heart and blood vessels, such as hypertension, angina, heart disease and stroke. Research indicates that cardiovascular diseases are a significant risk factor for developing AMD.
If you do this, it’s highly likely that your age-related macular degeneration will be detected at one of these appointments.
However, if you notice any of the symptoms of age-related macular degeneration listed above, you should schedule an appointment to see your eye doctor as soon as possible.
This is particularly true if you are over the age of 50, and if your vision starts to decline quite suddenly.
Once you’ve made an appointment for a consultation, you’ll meet with one of our expert ophthalmologists who will perform the necessary examinations to determine if you are affected by AMD and how severe your condition is.
The main assessment will be a dilated eye exam. This will involve eye drops being placed into your eyes a short while before the exam.
These will cause your pupils to dilate, enabling your ophthalmologist to see through them and into the back of your eyes. They can then check for any abnormalities, including signs of age-related macular degeneration.
Your ophthalmologist may also recommend a test called optical coherence tomography, or OCT for short.
This is where a special machine is used to take a picture of the inside of your eye, which can then be assessed for signs of AMD. The records can also be stored so that they can be compared in the future to see how your AMD is progressing.
In rarer cases, patients with signs of macular degeneration are given a test called angiography.
This is where dye is injected into a vein in the arm, where it then travels around the body — including into the retina's blood vessels. Your ophthalmologist will then take photographs as the dye flows through the blood vessels to determine how it moves, and whether the blood vessels are leaking fluid or blood into the retina.
What we eat directly impacts our health and wellbeing, and getting the right nutrition is essential for good eye health.
There are certain nutrients that are proven to be beneficial for the health of our eyes, including zinc, vitamin E, vitamin C, lutein and zeaxanthin. These can be found in things like green leafy vegetables, fruits and nuts.
If you smoke, you are much more likely to develop age-related macular degeneration.
You could significantly slow down the rate at which your AMD progresses by giving up smoking and limiting your exposure to second-hand smoke.
Similarly, obesity is an identified risk factor for age-related macular degeneration, as well as many other conditions that affect the eyes, including diabetic retinopathy.
If you are currently overweight, altering your diet and exercise routine to reach a healthy weight can be extremely beneficial.
Patients who are living with dry age-related macular degeneration are often recommended to use low vision aids to help them live with their condition. There is a variety of different low vision aids to choose from, including:
These treatments include:
With both of these treatments, you’ll be given medication to ensure that you don’t experience any discomfort while the treatment takes place. It’s also important to be aware that since AMD is progressive, you may need multiple treatments to keep your condition under control.
They will closely monitor the health and condition of your eyes and vision, which will enable them to spot any developing problems, such as AMD, glaucoma or cataracts early on — ensuring that you get treatment as promptly as possible. As with any health issue, early diagnosis can be crucial in preventing avoidable vision loss.
The suggestions for slowing down the rate of macular degeneration are also recommended as the best way to potentially prevent the condition from developing too. These include eating a healthy, balanced diet, losing or maintaining a healthy weight, regular exercise and giving up smoking.
A diagnosis of age-related macular degeneration can be worrying, but with advice, support and treatment from Circle Health Group hospital teams, patients can quickly learn to manage their condition and learn to live with low vision.
If you would like more information about age-related macular degeneration, or if you have concerns about your vision, please make an ophthalmology appointment with the friendly ophthalmology teams at a Circle Health Group hospital today.
If you would like to learn more about this procedure, book your appointment online today or call a member of our team directly on 0141 300 5009.