Has your eyelid recently swollen up? While it can seem alarming, it’s usually a fairly minor issue ‑ although sometimes it can indicate a more serious condition. In this guide, you'll learn about symptoms and causes of eyelid swelling, and treatment options for swollen eyes.
A swollen eye can look different depending on the causes. Here's one example.
Swollen eye happens when your eyelids become puffy and enlarged. You might have only one swollen eyelid, or it could affect both eyes. For people with lighter skin tones, the area may appear red or pink. On darker skin tones, the colour change might be less visible.
Swollen eye can be caused by many different things, including allergies, infections, inflammation, or injury.
Because your eye lid skin is very thin and flexible, even mild swelling can look quite pronounced.
In most cases, a swollen eye is mild and clears up on its own with simple home remedies. However, some situations may require medical attention. In rare instances, it could be a sign of a serious condition that needs immediate treatment.
The symptoms of a swollen eye vary quite a lot depending on the underlying cause. We've listed some common symptoms people experience when they have a swollen eye.
Swelling may only affect one, but could affect both at the same time, it may start suddenly or develop over time.
Depending on the cause, you may get a swollen upper eyelid, a swollen lower eyelid, or swelling in just one part of one eyelid.
Learn more about puffy eyes
You may notice you get lumps, bumps or swellings that start to appear on the inside or outside of your eyelids.
Learn more about eye styes
You may get blurred vision. Sometimes, you can't see through affected eye at all when eyelid swelling is severe.
Learn more about blurry vision
You may get an itchy, scratchy or gritty feeling in your eyes, almost as if there's something stuck in your eye.
Learn more about the feeling of something in your eye
You may feel that your eyes are more sensitive than usual when they're exposed to sunlight or some kinds of indoor lighting.
You may notice discharge that appears sticky or like pus around the eye.
Your eyes might be much more watery than usual. Your eyes will feel very watery and tears may run down your face.
Learn more about watering eyes
If you have a lighter skin tone, you may notice that your eyelids have gone red or pink. If you have darker skin, the eyelid may not appear a noticeably different colour.
Learn more about red, bloodshot eyes
The skin on your eyelids might feel dry, and you may notice flaking on the eyelid surface. The flakiness can be on the eyelid or around the eye.
The eyelids themselves, as well as the area around your eyes, might feel very painful. For some people, it's just uncomfortable. For others, the pain is really severe.
Learn more about eye pain
Having a swollen eye can make it hard or uncomfortable to move your eye up, down or side to side.
Depending on the cause of your swollen eye, you may also notice you get swelling in other parts of your face, hands, feet or limbs.
You may also notice bruising of the skin around the eye. The colour of the bruise will change over time. This is most common with a black eye.
Eyelid swelling can be an emergency. Call 111 if your eyelid droops suddenly, the pain is in your eye itself, you get a severe headache, you become very sensitive to light, have vision changes, or you think it could be an allergic reaction.
If you've developed a swollen eye, it can be quite alarming. If the swelling is gradual and not painful, book an emergency appointment with an optometrist or your GP ‑ they can help identify the cause. If it's happened very fast or is causing a lot of pain, call 111 for urgent care. While it's not usually an emergency, it's important to receive swollen eyelid treatment fast.
The most common causes of a swollen eye include infections, inflammation, injury, allergic reactions, eye disorders, and other medical conditions. We’ll look at each of these in turn.
A swollen eyelid can happen when a bacterial or viral infection affects your eye or another part of your body.
A hordeolum or 'stye' is a small painful lump on the inner or outer surface of the eyelid. It is usually caused by bacterial infection in an eyelash follicle.
Read more about stye
There are four sinus cavities in your face that produce mucus. When these become blocked (a condition called sinusitis) it can cause swelling around the eyes.
This is a rare but serious condition that's caused by an infection of the fat and muscle around the eye. It most often affects children, but adults can also get it. It progresses rapidly and requires urgent medical care.
Inflammation is your body's reaction to infection or injury. It can lead to a swollen eye if the eye (or the tissues surrounding it) gets affected.
This is a very common condition in New Zealand. It happens when the thin layer of tissue that covers the front of the eye and inner surfaces of the eyelid (the conjunctiva) gets inflamed.
Learn more about conjunctivitis
If a foreign object gets in your eye (such as a bit of dust, glass or metal) it can cause eyelid inflammation.
You may get eyelid swelling if chemicals get into your eyes. This is common with household cleaning fluids and makeup, and is also a risk in some workplaces.
Injuries to the eye itself or the surrounding tissues can cause a swollen lower eyelid or swollen upper eyelid.
A blow to the area around your eye sockets, forehead, or nose often causes a black eye. This leads to swelling of the eyelids along with noticeable bruising.
Insect bites on the skin around your eyes or eyelids can lead to significant swelling and puffiness.
Allergies are a common cause of swollen eye. Some kinds of allergic reaction are mild, but they can also be very dangerous and need urgent care.
Hay fever is an allergic reaction to pollen (from trees or grass, for instance) and can cause red, swollen eyes. About a fifth of New Zealanders get hay fever.
Learn more about hay fever
There are many other kinds of allergies and they often cause swollen and itchy eyes. Common allergens include pet hair, shellfish, sesame and peanuts.
Learn more about itchy eyes
A very severe allergic reaction that can be life threatening. It might be caused by certain foods (such as peanuts), medications or bee stings. If you have difficulty breathing, call for emergency help.
A swollen eye is a symptom of a few other eye health issues.
Blepharitis is a common eye condition that causes swelling of the lid, itching, irritation or occasionally redness of the eye itself.
Learn more about blepharitis
A chalazion is a small painless lump that develops slowly on one of your eyelids and causes a painless lump or swelling.
Learn more about chalazion
Contact lens‑related issues may also cause swollen eyelids. For example, a damaged contact lens or minor injuries when putting the lenses in can lead to swollen eyes.
A few other health conditions can also cause swollen eyes ‑ including things that might not be directly related to the eye.
This is a rare disorder which makes the thyroid gland become overactive and causes hormonal imbalances. It can cause puffy eyelids or bulging eyes among other symptoms.
This when your body retains fluid, so it looks puffy. It can be caused by a few different conditions. It can affect eyelids as well as fingers, lips, feet, ankles and the lower back.
Some kinds of cancer that affect the eyes, eyelids, tear ducts or other areas in the face can cause swollen eyes. Some cancer treatments may also make eyes appear puffy.
If you experience eyelid swelling or you've woken up with a swollen eye, it’s important to have it checked by an optometrist or your doctor. They’ll use various methods to learn more about what's happening.
Your optometrist or GP will ask about when the issue started, any other symptoms you've got, and how you're feeling generally.
At Specsavers stores, our optometrists use a few different methods to inspect swollen eyes, including an OCT scan, a slit lamp test or dilated eye exam.
If your optometrist, GP, or emergency department staff suspect certain conditions, they might refer you for a CT or MRI scan to find out what’s going on around your eye.
Doctors may also take a blood sample and send it to the laboratory for further testing if they believe the eyelid swelling is related to an infection.
Book an eye testYour optometrist or GP can advise you on how to treat a swollen eye, depending on what's causing it.
We've listed some potential home remedies for swollen eyes, along with more advanced medical treatments.
Eyelid swelling can often be treated with some simple home remedies. Still, it’s important to get medical advice ‑ especially if you experience more worrying symptoms like eye pain, sensitivity to light, or trouble opening the eye.
Use warm, soapy water to clean away any discharge or pus from your eyelid. Keep your eyes closed and gently wipe the area to clear any debris or pus.
Try applying a cold compress to the eyelids can help relieve soreness and inflammation. Try placing a cool, damp cloth over the affected eyelid.
If your swollen eye is caused by an allergy to things like pollen or pet fur, over‑the‑counter antihistamines can often really help.
If you get eyelid swelling after chemicals (such as from eye makeup or cleaning fluids) get in your eyes, wash your eyes out with cool, clean water for several minutes.
A swollen eye may require more advanced medical care. Depending on what's caused your eyelid swelling, your doctor or optometrist might recommend some of the following methods.
Antibacterial eye drops can be a highly effective treatment for sore, inflamed and swollen eyes. They can resolve the infection and reduce irritation.
If your swollen eye is caused by a viral or bacterial infection, you may be prescribed a course of antibiotics that you'll take for a few days.
For allergies that cause severe or life‑threatening reactions, your doctor will work with you to develop a management plan to manage those risks.
In some cases, surgery may be required to treat the cause of a swollen eye. For instance, some severe eye infections like orbital cellulitis may need surgery.
Book an eye testThere are so many things that can cause eyelid swelling ‑ and many of them are out of your control. For example, if your swollen eye is caused by hay fever, it's very difficult to avoid. All the same, there are some general things you can do to reduce your risk.
Eyelid hygiene is important ‑ try to clean your eyelids daily with soapy water. Also, if you wear contacts, follow good contact lens habits (don't wear them too long, keep the lenses in their correct fluid, don't wear while swimming etc.). Also, avoid excessive eyelid rubbing ‑ even if your eyes are itchy.
Avoiding things that could cause eyelid swelling is also sensible. If you have allergies, avoid allergy triggers or take antihistamines before exposure. Wear helmets or eye protection when taking part in any risky sports, DIY or work where objects might get into your eyes.
There are many reasons your upper eyelid might be swollen. It may be caused by something like an insect bite. Other times, it might be related to specific eye conditions like styes or chalazion. A few other kinds of infection or injury might also be behind it. Your optometrist or GP can offer swollen upper eyelid treatment.
The white part of the eye is called the conjunctiva. When this area becomes inflamed it can look a bit like jelly. The most common reason for swollen white of eye is conjunctivitis, which is an infection caused by a virus or bacteria.
Learn more about conjunctivitis
If you've woken up with a swollen eye, it can be very alarming. If there was no obvious injury the day before, it might have been caused by an insect (such as a mosquito) that bit you overnight. It could also be an allergic reaction to something like pet hair. Or, you may have an eye infection that got worse while you were asleep. Book an appointment with an optometrist to get this problem diagnosed.
It really depends on the cause. If it's caused by an insect bite, the swelling could last up to a week. Swelling from a black eye can last up to 3 weeks. Eyelid swelling from a stye will normally last 1‑2 weeks. Some eye conditions, like chalazion, can last up to a few months if left untreated. Visit your GP or optometrist to get a diagnosis ‑ they can give you a more accurate estimate for how long it will take to go down.
It depends on what's causing the issue. If your doctor believes that a bacterial infection is behind your swollen eye, then antibiotics (either in the form of eye drops, pills or even a drip) could be used. But if the swelling is caused by something like an insect bite, a scratch or a virus, then antibiotics won't help.
We would generally advise against driving if you have a swollen eyelid. It could potentially affect your vision, which would make driving very dangerous. Even if your vision isn't affected very much, it could also be painful or distracting, which means you might not be fully focused on the road.
If you have an allergy to pollen (hay fever), symptoms can include swollen, red, itchy and uncomfortable eyes.
Learn more about hay fever
It depends. Most of the time, swollen eye isn't an emergency. It's usually caused by minor infections and allergies that can be treated with home remedies or by a visit to your optometrist. But there are times when it could be a sign of something more severe. If it's accompanied by things like pain in the eye, light sensitivity, a change in vision, or a severe headache, you should seek emergency care.
AA Members are entitled to a free eye test (valued at $60), once every two years. Remember to present your AA Membership card in‑store.
Healthline (2023) What Causes a Swollen Eyelid, and How Is It Treated? Available at: https://www.healthline.com/health/swollen‑eyelid‑treatment
(Accessed: 15 December 2025)
MSD Manuals (2023) Eyelid swelling. Available at: https://www.msdmanuals.com/home/eye‑disorders/symptoms‑of‑eye‑disorders/eyelid‑swelling
(Accessed: 15 December 2025)
Healthify (2024) Hay fever ‑ Mate Hei. Available at: https://healthify.nz/health‑a‑z/h/hay‑fever
(Accessed: 15 December 2025)
Patient (2024) Swollen eyelid. Available at: https://patient.info/eye‑care/swollen‑eyelid
If your vision looks misty or washed out, especially in bright light or when driving at night, it could be cataracts.
When your cornea is shaped more like a rugby ball than a soccer ball, it can cause astigmatism, leading to blurred or distorted vision.
Long‑sightedness can cause blurry near vision even if your distance vision is fine.
Short‑sightedness (myopia) affects distance vision, but usually doesn’t impact close‑up tasks.
Glaucoma can develop gradually and cause vision loss if not caught early, often affecting side vision first.
Diabetes can affect the blood vessels at the back of your eye, leading to diabetic retinopathy and vision problems.
If your sight seems foggy or blurred, it could be caused by cataracts or another condition affecting your eye health.
Double vision means seeing two images of a single object, which can happen when the eyes are not aligned or working together properly
Do your eyes feel tried, sore or gritty? Dry eye could be the culprit, making vision cloudy, or as if you have glazed eyes.
This is when the edges of your eyelids get inflamed due to an infection or skin problem. It can also make the whites of your eyes appear pink or red.
Learn more about blepharitis
Seeing specks, spots or sudden flashes of light? These are common – but can also be a sign of a serious eye condition. It is worth checking out if they’re new or getting worse.
A chalazion is a blocked oil gland in the eyelid that causes a firm, usually painless lump and can lead to eyelid swelling or blurred vision.
Eye tests play a huge part in making sure your eyes stay healthy.
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An eye test is not just about getting glasses – it is a vital health check for your eyes.
All about eye testsFree exam for AA Members applies to standard eye examinations only, normally valued at $60. Excludes contact lens examination and visual field checks. Limited to one per AA Member every two years. Available to current AA Members upon presentation of AA Membership card.
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