Macular Degeneration Symptoms: 5 Early Warning Signs to Know

If you're noticing changes in your central vision — things look blurred, straight lines appear wavy, or you need much more light to read than you used to — these may be the early warning signs of macular degeneration. I'm Mr Dilraj Sahota, a consultant ophthalmic surgeon and medical retina specialist, trained at Oxford and Moorfields Eye Hospital. Below I'll cover the five key symptoms, what's actually happening inside the eye, and the one thing you can do at home right now to monitor your own macula. If any of these signs sound familiar, you can book a consultation for a specialist assessment.

Macular degeneration — also called AMD, or age-related macular degeneration — is progressive damage to the macula, the small central area of the retina responsible for sharp, detailed vision. It's the leading cause of central vision loss in people over 50 in the UK.

The key thing to understand is that AMD affects central vision only. It does not cause total blindness — but it will affect your reading, driving and ability to recognise faces if it progresses untreated. That's why catching it early matters so much.

The five symptoms to know are:

1. Blurred central vision
2. Straight lines appearing wavy or distorted — door frames, lamp posts or lines of text seeming to bend
3. A dark or grey patch appearing in the centre of your vision
4. Colours looking washed out or less vivid than before
5. Needing significantly brighter light to read than you did previously

If you notice any of these, see your optometrist. Early detection is the single most important factor in the outcome.

Not all AMD progresses at the same speed, and the type determines what happens next.

Dry AMD

Dry AMD — the more common form — develops slowly, over years. There's currently no treatment that reverses it, but there is good evidence that AREDS2 supplements slow progression in intermediate-stage disease, and lifestyle factors genuinely matter: not smoking, good cardiovascular health, and a healthy diet.

Wet AMD

Wet AMD is different. It develops when abnormal blood vessels grow under the retina and leak fluid, and it can cause rapid, significant vision loss — sometimes within weeks. This is the form where anti-VEGF injections are the frontline treatment, and they work — but the speed of treatment matters enormously. The window between onset and irreversible damage is narrow.

⚠️ One change needs same-day action. Any sudden increase in distortion, a new dark patch, or rapid blurring of your central vision should be treated as wet AMD until proven otherwise. Contact your optometrist the same day — do not wait for a routine appointment.

There's one simple tool that can detect early macular changes before your next clinic appointment — the Amsler grid. It's a square of straight lines with a central dot.

Cover one eye, look at the central dot, and note whether any lines appear wavy, missing or distorted. Do this weekly, one eye at a time. I've seen patients in clinic who detected their own conversion from dry to wet AMD this way — early enough for us to intervene effectively.

Search "Amsler grid," print one out, and keep it on the fridge. It's free, it takes thirty seconds, and it could protect your sight.

• See your optometrist if you notice any of the five symptoms — early detection is the single most important factor in outcome.
• Print an Amsler grid and test each eye separately once a week, reporting any new changes to your optometrist promptly.
• Ask your GP about AREDS2 supplements if you've been told you have intermediate dry AMD.
• Contact your optometrist the same day if distortion worsens suddenly or a new dark patch appears in your central vision. Do not wait for a routine appointment.

• The five early signs: blurred central vision, wavy straight lines, a central dark or grey patch, washed-out colours, and needing much brighter light to read
• AMD affects central vision only and does not cause total blindness — but untreated progression affects reading, driving and faces
• Dry AMD develops slowly; AREDS2 supplements and healthy lifestyle can slow it
• Wet AMD can move within weeks — anti-VEGF injections work, but speed is everything
• Sudden distortion, a new dark patch or rapid central blurring = same-day optometrist (wet AMD until proven otherwise)
• The Amsler grid is a free, 30-second weekly home check that can catch a conversion early

What are the first signs of macular degeneration?

The earliest signs usually affect central vision: blurring, straight lines that look wavy or distorted, a dark or grey patch in the centre of your vision, colours appearing washed out, and needing much brighter light to read. Peripheral (side) vision is not affected.

Does macular degeneration cause total blindness?

No. AMD affects central vision only, so it does not cause total blindness. However, untreated progression can significantly affect reading, driving and recognising faces, which is why early detection and monitoring are so important.

What is the difference between dry and wet AMD?

Dry AMD is the more common form and develops slowly over years; there's no treatment that reverses it, but AREDS2 supplements and a healthy lifestyle can slow it. Wet AMD develops when abnormal blood vessels leak under the retina and can cause rapid vision loss within weeks — it's treated with anti-VEGF injections, and speed matters.

How can I check for macular degeneration at home?

Use an Amsler grid — a square of straight lines with a central dot. Cover one eye, focus on the central dot, and check weekly whether any lines look wavy, missing or distorted, testing each eye separately. Report any new changes to your optometrist. It doesn't replace professional assessment, but it can catch changes early.

When is macular degeneration an emergency?

If you notice a sudden increase in distortion, a new dark patch, or rapid blurring of your central vision, contact your optometrist the same day. This can indicate wet AMD, where prompt anti-VEGF treatment can make a decisive difference.

Early detection is the single biggest factor in protecting your sight with macular degeneration. If you've noticed any of these symptoms, or you'd like a specialist assessment of your macular health, Mr Dilraj Sahota — a fellowship-trained medical retina specialist — offers consultant-led assessment, OCT imaging and anti-VEGF treatment in Edgbaston, serving Birmingham and the wider West Midlands. Book a consultation, or arrange a free 10-minute video call to discuss your symptoms. If you have diabetes, you may also want to read my guide to diabetic retinopathy symptoms and when to act — a different mechanism, but the same silent early stage.

This article is for general information and patient education. It is not a substitute for a personal consultation, diagnosis or treatment from a qualified clinician. If you notice any change in your vision, please see your optometrist or an ophthalmologist, and seek same-day advice for sudden distortion, a new dark patch, or rapid central vision loss.

Last updated: July 2026.