Macular Degeneration: Symptoms, Risk Factors and Treatment

Macular Degeneration: Symptoms, Risk Factors and Treatment

Age-related macular degeneration (AMD) is an eye disease that blurs your central vision, the sharp, straight-ahead sight you use to read, drive and recognize faces. It happens when aging damages the macula, a small area at the center of the retina (the light-sensitive layer at the back of the eye). Most people have the slower "dry" form, while the less common "wet" form can take sight quickly but responds to eye injections, so early detection matters.

This article is for general information and is not medical advice.

Key takeaways

  • AMD affects central vision only. It does not cause total blindness, but it can make reading, driving and recognizing faces hard.
  • Early AMD usually has no symptoms, so a dilated eye exam is often the only way to find it.
  • Straight lines that look wavy or crooked are a warning sign. Contact an eye doctor right away if you notice them.
  • Smoking roughly doubles your risk. Age over 55 and a family history also raise it.
  • Wet AMD is treated with anti-VEGF eye injections. Intermediate AMD may be slowed with the AREDS2 supplement formula, if your eye doctor recommends it.

What is age-related macular degeneration?

AMD is a gradual breakdown of the macula that blurs or distorts the center of your vision while your side (peripheral) vision usually stays intact. The National Eye Institute reports that about 11 million people in the United States have AMD, and it is a leading cause of vision loss in older adults.

The American Academy of Ophthalmology describes AMD as one of the leading causes of blindness in people 60 and older. According to the NHS, it usually first appears in people's 50s. It is not painful, so it often goes unnoticed at first.

AMD is one of several common age-related eye problems. It is different from clouding of the lens, which you can read about in our guide to cataract symptoms, causes and surgery.

What is the difference between dry and wet AMD?

Dry AMD is the common, slow form in which the macula thins over time, while wet AMD is a less common late form in which abnormal blood vessels grow under the retina and leak, usually causing faster vision loss. Any stage of dry AMD can turn into wet AMD.

Drusen are small yellow deposits under the retina that an eye doctor can see during an exam. Geographic atrophy is the name for late dry AMD, when patches of retinal cells waste away. MedlinePlus notes that wet AMD occurs in about 10% of people with macular degeneration, yet it causes most of the serious vision loss.

FeatureDry (atrophic) AMDWet (neovascular) AMD
How commonMost people with AMDAbout 1 in 10 people with AMD
What happensMacula thins; drusen build up; cells slowly dieAbnormal blood vessels grow and leak fluid or blood
Speed of vision lossUsually gradual over yearsCan be fast, over weeks or months
StagesEarly, intermediate, late (geographic atrophy)Always considered late AMD
Main treatmentMonitoring; AREDS2 supplements for intermediate stage; injections that slow geographic atrophyAnti-VEGF injections into the eye; sometimes photodynamic therapy

What are the early symptoms of macular degeneration?

Early AMD usually causes no symptoms at all, and intermediate AMD may cause only mild blurriness in the center of your vision or trouble seeing in dim light. Noticeable symptoms tend to appear in the late stage.

The National Eye Institute and the NHS list these signs as AMD progresses:

  • A blurry or distorted area near the center of your vision
  • Straight lines, such as door frames or tiles, looking wavy or crooked
  • Blank or dark spots in your central vision
  • Colors looking faded or less bright
  • Needing more light to read, and trouble seeing in low light
  • Difficulty recognizing faces until people are close
  • Sensitivity to bright light, and in some people, seeing things that are not there (hallucinations)

According to MedlinePlus, the most common early symptom of wet AMD is that straight lines look distorted and wavy, and a small dark spot in the center of vision may grow over time. Your better eye can hide a problem, so check each eye separately.

How to use an Amsler grid at home

An Amsler grid is a simple square of evenly spaced lines with a dot in the middle. It helps you spot new distortion or blank areas between eye exams. The American Academy of Ophthalmology suggests checking once a day using these steps:

  1. Put on the glasses you normally use for reading.
  2. Hold the grid 12 to 15 inches from your face in good light.
  3. Cover one eye.
  4. Look directly at the center dot with your uncovered eye and keep your gaze there.
  5. Without moving your eye, notice whether any lines look wavy, blurry, dark or missing.
  6. Switch eyes and repeat.
  7. If anything looks different from your last check, call your ophthalmologist right away and describe what you saw.

Who is at risk for AMD?

The biggest risk factors are age (especially 55 and older), smoking, a family history of AMD, and being white.

  • Age: MedlinePlus notes AMD is rare before age 55.
  • Smoking: The American Academy of Ophthalmology says smokers are twice as likely to get AMD as nonsmokers, and their disease tends to worsen faster. People who quit 20 years ago have the same risk as people who never smoked.
  • Family history: AMD is not directly passed down, but having a close relative with it raises your risk.
  • Heart and weight factors: The NHS links AMD with high blood pressure and being overweight. MedlinePlus also lists a high-fat diet and being female.

Many of these overlap with the risks behind heart disease and other long-term conditions, covered in our overview of the most common chronic diseases and how to prevent them.

How is macular degeneration diagnosed?

AMD is diagnosed with a comprehensive dilated eye exam, in which drops widen your pupils so the eye doctor can look at your retina and macula for drusen and other changes. Imaging tests then show how far the disease has progressed.

  • Optical coherence tomography (OCT): a painless scan that produces detailed cross-section images of the retina and shows fluid from wet AMD.
  • Fluorescein angiography: a dye test with photos that shows leaking blood vessels in the eye.
  • Amsler grid: used in the office and at home to check for distortion.

The American Academy of Ophthalmology recommends that adults with no symptoms have an eye exam at least by age 40, and every one to two years after age 65. Regular checkups are one of the habits covered in our guide to how to age well after 50.

How is AMD treated?

Treatment depends on the type and stage: early AMD is monitored, intermediate AMD may be slowed with the AREDS2 supplement formula, and wet AMD is treated with anti-VEGF injections into the eye. There is no cure.

AREDS2 supplements for intermediate AMD

The AREDS2 formula is a specific high-dose combination, not an ordinary multivitamin. The NEI lists the daily amounts as:

  • Vitamin C: 500 mg
  • Vitamin E: 400 IU
  • Lutein: 10 mg
  • Zeaxanthin: 2 mg
  • Zinc: 80 mg
  • Copper (as cupric oxide): 2 mg

The NEI says this formula may stop intermediate AMD from turning into late AMD, and may slow AMD in the other eye if you already have late AMD in one eye. It cannot stop early AMD from becoming intermediate, and it probably will not help if you have late AMD in both eyes. The older AREDS formula contained beta-carotene, which can raise lung cancer risk in people who smoke or used to smoke, so AREDS2 (which has no beta-carotene) is the version to use. The American Academy of Ophthalmology also notes that trials have not shown these supplements prevent AMD in people who do not have it.

Lutein and zeaxanthin are also found in leafy green vegetables. A diet built around vegetables and fish, like the patterns described in what the world's oldest people eat, supports eye health without replacing the formula your doctor may advise.

Anti-VEGF injections for wet AMD

VEGF (vascular endothelial growth factor) is a protein that drives the growth of the leaky blood vessels in wet AMD. Anti-VEGF drugs block it and are injected into the eye after numbing drops. The American Academy of Ophthalmology lists the main options as aflibercept, ranibizumab, bevacizumab and faricimab. Most people have needed an injection every month or two at first, though some newer options can stretch the gap to 3 to 4 months for many patients. Photodynamic therapy, which combines injections with laser treatment, is sometimes used as well.

Treatments for geographic atrophy

For late dry AMD, two injected drugs, pegcetacoplan and avacincaptad pegol, are FDA approved. They target part of the immune system called the complement cascade. The American Academy of Ophthalmology reports they can slow geographic atrophy by up to 20%, but they do not improve vision or prevent vision loss, and they can cause side effects.

How can low vision services help with AMD?

Low vision services teach you to make the most of the sight you still have, using magnifiers, better lighting, technology and training so you can stay independent. The National Eye Institute notes that vision rehabilitation can help people with AMD stay active even when glasses or treatment cannot restore their sight.

  • Handheld, stand and electronic magnifiers for reading
  • Brighter, glare-free task lighting at home
  • Eccentric viewing training, which, as the NHS explains, teaches you to use the healthier parts of your retina

Poor vision raises the risk of trips, so it helps to read up on fall prevention for older adults and adjust your home. If you also notice trouble following conversations, getting checked for age-related hearing loss makes sense, since losing two senses adds to isolation.

Common mistakes with macular degeneration

  • Waiting for symptoms before an eye exam. Early AMD is silent. Regular dilated exams catch it before vision changes.
  • Testing with both eyes open. A good eye can mask a problem in the other. Always cover one eye on the Amsler grid.
  • Taking supplements to prevent AMD you do not have. The AREDS2 formula helps specific stages only. Ask your eye doctor first, especially because 80 mg of zinc is a high dose.
  • Smokers using the old formula with beta-carotene. Current and former smokers should use the AREDS2 version.
  • Skipping injection appointments. Most people have needed injections every month or two to keep their vision, so keep the schedule your retina specialist sets.

When to see a doctor

Contact an eye doctor promptly (the same day if possible) if you notice:

  • Straight lines that suddenly look wavy, bent or crooked
  • A new dark, blank or blurry spot in the center of your vision
  • Any new change on your Amsler grid compared with your last check
  • Sudden worsening of vision in one or both eyes
  • A dark curtain or shadow moving across your vision
  • A red, painful eye

The NHS notes that symptoms like these can also be signs of other eye problems that need treatment straight away, so get urgent care rather than waiting for a routine appointment.

Frequently asked questions

Can macular degeneration cause total blindness?

AMD rarely causes complete blindness because it affects central vision and usually leaves side vision intact. However, late AMD can make reading, driving and recognizing faces very hard, which is why it counts as a leading cause of serious vision loss.

Can you reverse macular degeneration?

No current treatment reverses AMD. Anti-VEGF injections are used to control wet AMD and help keep vision, while AREDS2 supplements and the newer geographic atrophy drugs aim to slow further damage.

Does exercise lower AMD risk?

Possibly. The American Academy of Ophthalmology reports that one study found exercising three times a week may help reduce the risk of wet AMD. Routines like these longevity exercises also support blood pressure and weight, both linked to AMD.

If one eye has AMD, will the other eye get it?

Often, yes. Having late AMD in one eye raises the risk of late AMD in the other, so keep checking each eye separately and ask whether the AREDS2 formula is right for you.

What to do next

  1. Book a dilated eye exam if you are over 55, smoke, or have a relative with AMD.
  2. Print an Amsler grid and check each eye once a day.
  3. If you smoke, make a plan to quit. Your AMD risk falls over time after stopping.
  4. Eat more leafy greens and fish, stay active, and keep blood pressure and cholesterol in a healthy range.
  5. If you have intermediate AMD, ask your eye doctor whether the AREDS2 formula suits you.
  6. If your vision is already affected, ask for a referral to low vision services.

Sources

Last reviewed: November 2026.

Comments

Post a Comment

Popular Posts

Muscle Gain Diet: What Actually Works, Kept Simple

Image
To build muscle, most people who lift regularly need about 1.4 to 2.0 grams of protein per kilogram of body weight a day, spread over meals of roughly 20 to 40 grams each, plus enough total food to fuel training. Add consistent strength training and decent sleep, and that covers most of the results. Everything else is fine-tuning. This guide is for anyone who has started lifting and feels buried in conflicting advice about meal timing, shakes and supplement stacks. Here's the short, evidence-based version. Key takeaways The International Society of Sports Nutrition (ISSN) says 1.4 to 2.0 g of protein per kg per day is enough for most exercising people building muscle. Spread protein across the day, about 20 to 40 g per meal, every 3 to 4 hours. Exact timing around your workout matters less than total daily intake. Eating before or after training both work. Creatine monohydrate is the best-supported supplement. Protein powder is a convenience, not a requirement. If you...
Read more

Top 10 Exercises to Help You Sleep Longer and Better

Image
The best exercises for sleep are the ones you'll do most days: brisk walking, yoga, swimming, cycling, strength training and gentle evening stretching all have research linking them to falling asleep faster and sleeping more deeply. Moderate activity can fit almost any time of day. Hard, sweaty workouts are usually best kept away from the last couple of hours before bed. This guide is for you if you lie awake at night, wake up unrefreshed, or want a drug-free way to sleep better, and you'd like to know which kind of movement to try first. Key takeaways Regular activity over weeks matters more than any single workout. Expect gradual change, not an overnight fix. Morning walks outdoors pair movement with daylight, which helps set your body clock. Slow, breath-focused practices such as yoga, tai chi and stretching are the best fit for evenings. Save high-intensity workouts for morning or early afternoon if late sessions keep you up. Exercise helps most sleep problems but...
Read more

Plant Protein Powder for Acne-Prone Skin: What to Know

Image
If your skin broke out after you started whey protein shakes, switching to a plant-based protein powder is a reasonable experiment. Cow's milk has been linked with acne, and case reports describe acne flares that cleared after whey was stopped. A pea protein powder can support muscle growth, and one trial found results similar to whey. This guide is for people who lift or train and want to keep building muscle without guessing about their skin. It covers what the evidence does and doesn't show, how to choose a powder and how to run a fair test. Key takeaways The milk link is real but not fully explained: the American Academy of Dermatology (AAD) says studies link cow's milk with acne, though the reason isn't clear. Whey evidence is limited: it comes mostly from small case reports and observational studies, not large trials. Pea protein can build muscle: in a 12-week trial, pea and whey produced similar gains in muscle thickness. Sugar matters too: high-gly...
Read more

Can Pinworms Last for Years? Why Infections Keep Coming Back

Image
No, a single pinworm can't live in your body for years. Adult worms live for only a few weeks. What makes an infection seem to last for months, or even years, is reinfection: eggs get swallowed again and start a new cycle before the old one ends. Break that cycle and the infection clears. This is for parents who've treated a child, seen the itching come back a few weeks later, and started to wonder whether something more serious is going on. Key takeaways Pinworms live for weeks, not years. Long-running "infections" are almost always repeated reinfections. Treatment is two doses of medicine, two weeks apart, because the medicine kills worms but not eggs. Everyone in the household needs treating at the same time, even people with no symptoms. Eggs can survive on bedding, clothes and surfaces for around two to three weeks, so cleaning matters as much as medicine. Pinworm rarely causes serious harm, but see a doctor for babies under 2, during pregnancy, or if t...
Read more

Calorie Deficit and Insomnia: Why Dieting Keeps You Awake

Image
Yes, a calorie deficit can cause insomnia. Eating less than you burn lowers overnight blood sugar, raises the hunger hormone ghrelin and nudges cortisol up, and together those signals can wake you at 2 or 3 a.m. The bigger and faster the deficit, the more likely your sleep suffers. This guide is for anyone who started a diet and suddenly sleeps worse. You'll learn how to recognize diet-related sleep trouble, and how to adjust your plan so you keep losing fat without lying awake staring at the ceiling. Key takeaways Diet-related sleep trouble usually looks like waking in the second half of the night, not trouble falling asleep. Large, fast deficits disrupt sleep more than small, steady ones. Keeping protein adequate and saving some carbohydrate for the evening often helps. Poor sleep makes dieting harder: it raises hunger and can shift weight loss away from fat and toward muscle. Loud snoring, gasping, or insomnia that started before the diet needs a medical check, not a ...
Read more

Why Am I Losing Muscle Mass? Causes, Signs and Fixes

Image
Most unexplained muscle loss comes from using your muscles less, getting older, or eating too little protein and energy. Less often, it's a sign of nerve damage, a hormone problem or another illness. The good news is that the common causes respond well to regular strength training and enough protein at each meal. Maybe your legs look thinner after a few months at a desk job, or the stairs feel harder than they did last year. This guide is for anyone who has noticed that change and wants to know what's behind it and what to do next. Key takeaways Disuse is the most common cause: muscles shrink when they aren't worked regularly, and this type can often be reversed with exercise and better nutrition. Age plays a part: Cleveland Clinic says age-related muscle loss (sarcopenia) starts in your 30s or 40s and speeds up between ages 65 and 80. Strength training is the main fix: adults should do muscle-strengthening activity on at least 2 days a week, according to the CD...
Read more

Fruits That Help Reduce Cholesterol and What to Avoid

Image
Avocado, berries, oranges and an apple, fruits that fit a cholesterol-friendly diet Fruits that are rich in soluble fiber, such as apples, pears, oranges, bananas and prunes, can help lower LDL ("bad") cholesterol as part of an overall heart-healthy diet. Avocado can help too when it replaces saturated fat. Fruit alone won't fix high cholesterol, but it's one of the easiest changes to stick with. This guide is for anyone who's just seen a high cholesterol result and wants to know what to put on the plate, and what to watch out for, especially if you take a statin. Key takeaways MedlinePlus lists apples, bananas, oranges, pears and prunes as fruit sources of soluble fiber, which helps lower cholesterol. The suggested target is 10 to 25 grams of soluble fiber a day, from fruit, oats, beans and other foods. In a small controlled study, a moderate-fat diet with one avocado a day lowered LDL more than a similar diet without avocado. Grapefruit, Seville ora...
Read more

No-Sugar Diet: How to Cut Added Sugar Step by Step

Image
A no-sugar diet means cutting added sugars, not the natural sugar in whole fruit, vegetables and plain dairy. You drop soda, sweets and sweetened snacks first, then hunt down hidden sugar in sauces, bread, yogurt and cereal. Most people get through the hardest cravings within one to two weeks. It sounds simple until you start reading labels and find sugar in pasta sauce, salad dressing and "healthy" granola. This guide is for anyone who wants to cut back without a miserable, all-or-nothing approach that collapses by week two. Key takeaways The target is added and free sugars: table sugar, syrups, honey, fruit juice and sweeteners added to processed food. The WHO advises keeping free sugars under 10% of daily calories, with extra benefit below 5%, about 25 grams or 6 teaspoons a day. The CDC reports that US adults average about 17 teaspoons of added sugar a day. Expect cravings, irritability or low energy for the first few days; they usually ease within one to two we...
Read more

Plant-Based Diet for Kidney Disease: Foods, Benefits, Meals

Image
A plant-based diet can suit many people with chronic kidney disease (CKD), and kidney organizations say eating more plants in place of red meat may help slow its progression. The catch is that potassium, phosphorus, protein and sodium still need managing, and your limits depend on your lab results. A renal dietitian should set them. This guide is for people living with CKD, and the family members who cook for them, who want to eat more plants without upsetting their blood work. Key takeaways The National Kidney Foundation says eating more plant-based foods in place of red meat may help prevent and slow the progression of chronic kidney disease. The body absorbs more phosphorus from animal foods than from plant foods, and phosphate additives in processed foods are almost completely absorbed. Foods with 200 mg or more of potassium per serving count as high-potassium, and that includes many fruits, vegetables, beans and nuts. Most adults should keep sodium to no more than 2,300 m...
Read more

Soursop Benefits and Risks: Fruit, Leaves and Tea

Image
Soursop fruit is a healthy, fibre-rich tropical fruit that's safe to enjoy in normal amounts. Its leaves and tea have traditional uses with some early lab and animal evidence, but no human trials show soursop treats or cures cancer. High-dose leaf extracts and supplements also raise real concerns about nerve damage, so they deserve caution. This is for anyone who enjoys soursop, has been told to drink the leaf tea for a health problem, or has seen posts claiming it beats chemotherapy and wants a straight answer. Key takeaways The fruit pulp offers fibre, vitamin C and potassium, and fits well in a varied diet. Soursop extracts kill some cancer cells in lab dishes, but that hasn't been shown in people. No reputable cancer organisation supports it as a treatment. Compounds in soursop, especially concentrated in leaves, seeds and bark, can harm nerve cells. Heavy long-term use has been linked to Parkinson-like symptoms. Occasional leaf tea is different from daily concentr...
Read more