Summary
- Dry AMD develops gradually due to retinal thinning and deposits of a protein in the eye called drusen. Vision changes are often subtle at first and progress slowly over time
- Wet AMD, on the other hand, involves abnormal blood vessel growth and may cause faster vision changes.
- Dry AMD is usually managed through monitoring, nutrition, and lifestyle measures.
- With wet AMD, however, you may require a treatment called anti-VEGF injection to control abnormal blood vessels.
Age-related macular degeneration (AMD) is a common eye condition that affects central vision, particularly in adults over 50. If you’ve noticed changes in how clearly you see faces, text, or fine details, it can be worrying.
If you have the condition or suspect you might, you’d want to know your treatment options. Generally, treatment options differ based on whether you have dry or wet AMD. Here’s all you need to know.
Dry vs Wet Age-Related Macular Degeneration (AMD)
Dry and wet AMD both affect the macula, the part of the eye responsible for sharp central vision, but they do not behave in the same way. The two AMDs differ in how they develop, how quickly vision changes occur, and what treatment approach may be needed.
Cause and How AMD Affects The Eye
Dry AMD develops gradually as the macula thins and small yellow deposits called drusen accumulate beneath the retina. You can think of drusen as tiny bits of waste material that gradually build up as the eye ages. At first, this may not cause obvious problems, but over time, it can make the retina less efficient at processing what you see.
Wet AMD, in contrast, happens when abnormal blood vessels grow beneath the macula. These vessels are fragile and unstable, almost like faulty plumbing. They can leak fluid or blood into the retina, which can damage the macula much more quickly and affect central vision in a shorter period of time.
Progression Speed
Dry AMD usually progresses slowly, often over years. In daily life, you might notice needing a brighter light to read the newspaper, finding restaurant menus harder to read in dim settings, or taking longer to focus on small print on a medicine label. Because the changes are slow, many people do not notice them straight away
Wet AMD tends to progress more rapidly, sometimes within weeks or months. Vision can change over weeks, or sometimes even sooner. A person may notice that lines on floor tiles or window frames start to look bent, or that a face across the table suddenly looks distorted or unclear. These changes often feel more abrupt and harder to ignore.
Symptoms and Visual Effects
The symptoms of dry AMD often appear gradually. This may mean:
Words appear slightly blurred when reading
Needing to move your phone around to find a clearer focus
Faces appear less sharp, especially from a distance
Colours or fine details seem less crisp than before
With wet AMD, symptoms are often more noticeable and may come on quite suddenly. These can include:
Straight lines (like door frames or text) appear wavy
Central vision becomes distorted during tasks like reading, cooking, or watching television
Risk of Vision Loss
Dry AMD usually carries a lower immediate risk of severe vision loss, but it can still become serious over time if left untreated. In advanced stages, like geographic atrophy, it can lead to significant central vision impairment over time.
Wet AMD carries a higher risk of rapid, severe vision loss if left untreated. This is why sudden distortion or blurring should never be ignored. Prompt eye assessment can make an important difference in protecting sight.
Still unsure if you have age-related macular degeneration? Read more about the causes here.
Dry AMD Treatment and Management
At present, there is no treatment that can fully reverse dry AMD. However, that does not mean nothing can be done. For many patients, the focus is on slowing progression, protecting the remaining vision, and detecting early signs of worsening.
Nutritional Support and Eye Health Supplements
For some patients with intermediate or advanced AMD in one eye, their eye specialist may recommend supplements based on findings from the Age-Related Eye Disease Studies (AREDS2).
These are not the standard over-the-counter multivitamins. They are specific formulations designed to support retinal health. While they do not cure dry AMD or restore lost vision, they may help reduce the risk of the condition progressing.
These formulations often contain nutrients such as:
- Vitamin C
- Vitamin E
- Zinc
- Copper
- Lutein
- Zeaxanthin
It is important not to start supplements blindly without medical advice. Not everyone with dry AMD will benefit from them in the same way. The suitability depends on the stage of your condition, your general health, and your smoking history. For example, some older formulations included beta-carotene, which is generally avoided in smokers and former smokers because of associated health risks.
Lifestyle and UV Protection Measures
Lifestyle changes can also support overall eye health and help reduce further damage. These measures are important because the retina is affected not only by ageing but also by circulation, inflammation, and long-term environmental stress.
An eye specialist may recommend steps such as:
Wearing sunglasses that provide ultraviolet (UV) protection
Maintaining a balanced diet rich in leafy greens and fish
Avoiding smoking
Managing health conditions such as high blood pressure, high cholesterol and diabetes
These steps may sound easy, but they matter. For example, smoking is one of the most modifiable risk factors linked to AMD progression. The retina is a highly active tissue that depends on a good supply of oxygen and nutrients. Smoking can interfere with this by damaging blood vessels, increasing harmful oxidative stress, and placing extra strain on the macula. Over time, this can make existing retinal damage worse and increase the risk of AMD progressing.
Another area where daily routines can make an impact is diet. Lutein and zeaxanthin, which are essential for macular health, are found in leafy greens like spinach and kale. Omega-3 fatty acids, which are frequently linked to retinal support as part of a balanced diet, are found in fish like salmon, sardines, and mackerel.
Lifestyle management, on the other hand, helps create a healthier environment for your retina. It may not undo the damage already present, but it can help the eye cope better over time.
Regular Retinal Monitoring
People diagnosed with early or intermediate AMD usually benefit from regular eye examinations as dry AMD worsens progressively over time. Monitoring allows doctors to detect changes in the retina and identify signs of wet AMD early.
During follow-up appointments, your eye specialist may examine the retina using imaging tests like optical coherence tomography (OCT). This scan provides a cross-sectional view of the retina’s layers, which helps doctors look beneath the surface and detect subtle changes that may not yet be obvious from symptoms alone.
You may also be advised to monitor your vision at home. For example, you might be asked to:
- Check if straight lines appear bent, wavy, or distorted
- Compare the vision between both eyes regularly
- Notice whether there is a new blurred, grey, or missing patch in the centre of vision
- Pay attention to changes in daily activities like reading, recognising faces, or seeing details on a screen
One commonly used tool is the Amsler grid, a simple chart of straight lines forming small squares. If parts of the grid appear warped, missing, or blurry, it may be a sign that the macula has changed and should be checked promptly.
When To Seek Urgent AMD Treatment
Although dry AMD typically advances slowly, any sudden change in vision should not be disregarded. Dry AMD can progress to wet AMD, which requires urgent assessment.
You should seek medical attention promptly if you notice:
Sudden distortion of straight lines
A new dark or blank patch in the centre of vision
Rapid worsening of blurred central vision
Noticeable difference between the two eyes that was not present before
A helpful rule of thumb is this: if your vision changes noticeably over days or weeks rather than gradually over months or years, it is worth getting checked sooner rather than later.
Wet AMD Treatment Options
Unlike dry AMD, wet AMD usually requires active treatment to control abnormal blood vessel growth and retinal fluid. These blood vessels are fragile and can leak fluid or blood, which may cause swelling, scarring, and rapid damage to central vision if left untreated.
Anti-VEGF Injections for Retinal Fluid Control
One of the most widely used treatments for wet AMD involves anti-vascular endothelial growth factor (anti-VEGF)(Vascular Endothelial Growth Factor) injections (such as Lucentis, Eylea 8mg and Vabysmo).
VEGF is a naturally occurring protein in the body that promotes the growth of abnormal blood vessels beneath the retina, which contributes to the problem in wet AMD patients.
Anti-VEGF medications work by blocking VEGF, which may help:
- Reduce leakage from abnormal blood vessels
- Reduce retinal swelling
- Slow further damage to the macula
- Stabilise vision
How Anti-VEGF Injections are Given
Many patients feel anxious when they first hear the word “injection in the eye”. However, the procedure is typically much quicker and easier to handle than expected.
Before the injection, the eye is numbed with anaesthetic drops to minimise discomfort. The eye is then cleaned carefully to reduce the risk of infection. Following this, the medication is injected into the eye, and the procedure takes only a short time.
The majority of patients describe the experience as uncomfortable rather than painful. You may feel pressure, but it is usually brief. After the injection, some patients experience moderate redness or a small speck at the injection site, and the eye may feel somewhat irritated for a brief period.
In most cases, patients can go home the same day of the injection and resume light activities. However, specific aftercare advice may vary depending on the clinic and the individual situation. We will check the patient the next day at the clinic for eye pressure issues and any infection.
Extended Depth of Focus IOL (EDOF)
The latest generations of EDOF IOLs enable patients to achieve good vision for both distant and intermediate ranges, with minimal risk of visual disturbances such as glare and halos. In practical terms, when these lenses are correctly implanted and achieve the desired refraction, patients can see clearly at various distances—whether it’s looking at a computer, iPad, food on a table, or larger text on a phone—without needing glasses.
Why Repeated Injections Are Required
Wet AMD usually cannot be treated with a single injection, as the blood vessels need ongoing suppression. Therefore, AMD treatment is commonly given at regular intervals.
At the beginning of wet AMD treatment, Anti-VEGF injections are given more frequently, often monthly, for a period of time. The schedule may be adjusted depending on how the retina responds. Some patients continue with regular fixed injections, while others move to a treatment plan based on scan findings.
This is important because wet AMD can recur frequently. Even if vision seems stable, fluid may begin to reappear in the retina before the patient clearly notices it. Therefore, follow-up scans and repeat treatment are often needed.
Laser Therapy in Selected Cases
Laser treatment may sometimes be used to seal leaking blood vessels in selected situations. However, this approach is less commonly used today for AMD treatment.
This is because laser therapy can also affect nearby healthy retinal tissue. Since the macula is responsible for detailed central vision, doctors are cautious about treatments that may cause collateral damage in this area.
Anti-VEGF injections are now preferred in most cases because they are more targeted. They address the abnormal vessel activity without causing the same degree of direct damage to surrounding retinal tissue.
Eye Specialist Follow-Up
Wet AMD usually requires monitoring and repeat treatments. During follow-up visits, your eye specialist will assess how the retina is responding to treatment and determine whether additional injections or adjustments are needed.
This often includes:
- Checking your vision
- Examining the retina
- Performing retinal imaging
- Looking for fluid, swelling, bleeding, or signs of persistent disease activity
Follow-up visits are essential as a patient may feel that vision is “not too bad” and assume treatment can wait, when in reality the scan may show ongoing leakage that could lead to more permanent damage if ignored.
Protect Your Vision With Early AMD Screening in Singapore
Age-related macular degeneration may develop gradually, and many people do not notice the signs of the condition in the early stages. If you are over 50 or have risk factors such as a family history of AMD, you should consider getting your eyes checked.
At Angel Eye & Cataract Centre, patients undergo comprehensive retinal assessments for AMD. We will review your symptoms, perform appropriate imaging tests, and discuss suitable treatment options. Thereafter, we’ll ensure you get the follow-up treatment or monitoring you need. Your long-term eye health is always our priority!
Frequently Asked Questions
Can dry AMD turn into wet AMD?
Yes, dry AMD can progress to wet AMD in some cases. This is why regular monitoring is important, even if your symptoms seem mild.
Is AMD always age-related, or can younger people get it?
While AMD is more common after age 50, certain genetic or lifestyle factors may increase risk earlier. However, it is less common in younger individuals.
Will I lose all my vision if I have AMD?
AMD mainly affects central vision. Most people retain their peripheral (side) vision, although central tasks like reading or recognising faces may become more difficult.
How often should I get my eyes checked if I have early AMD?
The frequency varies depending on your condition. Your eye specialist will recommend a schedule, which may range from every few months to annually.
