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Learn about your swelling of one eye, including causes and common questions. Or get a personalized analysis of your swelling of one eye from our A.I. health assistant. At Buoy, we build tools that help you know what’s wrong right now and how to get the right care.

Swelling of One Eye Checker

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Your Swelling of One Eye May Also be Known as:
Left eye feels puffy
Left eye feels swollen
Left eye is puffy
Left eye is swollen
Left eye puffiness
Left eye swelling
One eye feels puffy
One eye feels swollen
One eye is puffy
One eye is swollen

Top 10 Swelling of One Eye Causes

  1. 1.Stye and Chalazion

    A stye (or hordeolum) is an infection in the upper or lower eyelid. There are three glands around the eye and one of them is infected.

    You can treat this on your own with a topical antibiotic and warm compresses to help drain the infected area.

    Rarity:
    Common
    Top Symptoms:
    swelling of one eyelid, redness around the eye, eyelid lump, eyelid pain, feeling of something in the eye
    Symptoms that always occur with stye and chalazion:
    swelling of one eyelid
    Symptoms that never occur with stye and chalazion:
    fever
    Urgency:
    Self-treatment
  2. 2.Irritated Eye Causing Swelling

    Chemosis is a sign of eye irritation. The outer surface of the eye can look like a blister, filled with water or fluid. It can occur from infection or allergies, or as in this case, from rubbing the eye.

    You can treat this on your own with eye drops from the pharmacy. "Antihistamine" drops like Zaditor (ketotifen fumarate) or Optivar (azelastine hydrochloride) will sooth and reduce swelling.

    Rarity:
    Rare
    Top Symptoms:
    swelling of the eye area, eye itch, eye redness, swollen whites of eyes
    Symptoms that always occur with irritated eye causing swelling:
    swelling of the eye area
    Urgency:
    Phone call or in-person visit
  3. 3.Acute Postinfectious Glomerulonephritis

    The kidneys are a pair of important organs that lie near the spine whose function is to filter blood. There are about 1 million glomeruli in each kidney, which are tiny balls of thin blood vessels where there filtration takes place. After an infection anywhere in the body, especially a streptococcal infection (strep throat), these glomeruli may become inflamed.

    You should visit your primary care physician within the next 24 hours. Prescription medications are needed to take care of the inflammation as well as any infection if it is still present. The kidney is an important organ and needs to be taken care of as soon as possible!

    Rarity:
    Rare
    Top Symptoms:
    headache, nausea, loss of appetite, vomiting, fatigue
    Urgency:
    Hospital emergency room
  4. 4.Hypothyroidism

    Hypothyroidism occurs when the thyroid, a butterfly-shaped organ inside the neck, no longer produces adequate levels of hormones. Thyroid hormones are essential for many bodily functions including breathing, heart rate, and metabolism.

    You should visit your primary care physician. Hypothyroidism is a complex condition that is usually treated with hormone replacement therapy.

    Rarity:
    Rare
    Top Symptoms:
    fatigue, depressed mood, difficulty concentrating, weight gain, muscle aches
    Urgency:
    Primary care doctor
  5. 5.Allergic Reaction (Not Life - Threatening)

    When the body encounters a harmful substance, it responds with inflammation and swelling that can be protective. In many individuals, the body responds this way to substances that are not normally harmful, like foods or pollen. This is the basis of allergy, or Type 1 Hypersensitivity.

    You should visit a physician to discuss the allergy and its severity, if you have not already been diagnosed. Your doctor may order an allergy screen to see what other substances produce the response. If you begin to feel tightness in the throat or difficulty breathing, get to an ER as soon as possible.

    Rarity:
    Common
    Top Symptoms:
    swollen face, swollen lips, hives, red swollen bumps or patches with a pale center, lip numbness, history of allergies
    Symptoms that never occur with allergic reaction (not life-threatening):
    shortness of breath, throat itching
    Urgency:
    Primary care doctor

    Swelling of One Eye Checker

    Take a quiz to find out why you’re having swelling of one eye.

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  6. 6.Inflamed Eyelid (Blepharitis)

    Blepharitis is an eyelid issue where the skin, lashes, or glands become inflamed from an irritant or infection.

    You should use an eyelid scrub and warm compresses. It's important to keep your eyelids clean going forward.

    Rarity:
    Common
    Top Symptoms:
    sensitivity to light, eye itch, eye redness, dry eyes, feeling of something in the eye
    Symptoms that never occur with inflamed eyelid (blepharitis):
    severe eye pain
    Urgency:
    Self-treatment
  7. 7.Acute Salivary Duct Stone (Sialolithiasis)

    A salivary duct stone is the most common disorder of the salivary glands (where you make spit). They can range in size from tiny particles to stones that are several centimeters in length.

    You can try treating this at home and going to the doctor if things don't work. You can stay well hydrated, apply warm compresses, and massage or "milk" the duct with the stone in it. Another tip would be to suck on lemon drops or other hard tart candy (called sialogogues, which promote salivary secretions) throughout the day. Pain is treated with NSAIDs like Ibuprofen. If things do not get better or you cannot find the stone, it's best to go to your doctor.

    Rarity:
    Uncommon
    Top Symptoms:
    swelling on one side of the face, swollen jaw, painful face swelling, painful jaw swelling, spontaneous jaw pain
    Urgency:
    Phone call or in-person visit
  8. 8.Cellulitis

    Facial cellulitis is a skin infection that typically comes from other parts of the face like the mouth or the sinuses and needs antibiotic treatment. Symptoms can be pain, redness, warmth and swelling of the affected area.

    You should seek care at your primary care physician or an urgent care within a day or two, to start antibiotic treatment and to prevent the infection from spreading to other parts of your body.

    Rarity:
    Uncommon
    Top Symptoms:
    fever, chills, facial redness, swollen face, face pain
    Symptoms that always occur with cellulitis:
    facial redness
    Urgency:
    Primary care doctor
  9. 9.Chronic Kidney Disease

    Chronic kidney disease, also known as chronic renal failure, is a disorder caused by gradual loss of kidney function. It is most common in elderly individuals.

    You should make an appointment with your primary care physician to discuss your symptoms as soon as possible.

    Rarity:
    Common
    Top Symptoms:
    fatigue, difficulty concentrating, loss of appetite, decreased sex drive, unintentional weight loss
    Urgency:
    Primary care doctor
  10. 10.Non - Specific Facial Rash

    A rash is an area of irritated or swollen skin. Often, rashes are unidentifiable and some variation of normal. For example, scratching one's arm causes it to turn red (which is caused by mast cells releasing chemicals into the local area), but that's completely normal.

    At this time, you do not need treatment for this rash. If it worsens, you may need to consult a physician.

    Rarity:
    Common
    Top Symptoms:
    facial redness
    Symptoms that always occur with non-specific facial rash:
    facial redness
    Symptoms that never occur with non-specific facial rash:
    fever
    Urgency:
    Wait and watch

Questions Your Doctor May Ask About Swelling of One Eye

  • Q.Is your eye swelling getting better or worse?
  • Q.How long has your eye been swollen?
  • Q.How swollen is your eye?
  • Q.Is your eye swelling come-and-go?

If you've answered yes to one or more of these questions, check our swelling of one eye symptom checker.

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Swelling of One Eye Symptom Checker Statistics

  • People who have experienced swelling of one eye have also experienced:

    • 9% Swelling on One Side of the Face
    • 5% Eye Redness in One Eye
    • 3% Eye Itch
  • People who have experienced swelling of one eye had symptoms persist for:

    • 42% Less Than a Week
    • 33% Less Than a Day
    • 11% Over a Month
  • People who have experienced swelling of one eye were most often matched with:

    • 21% Stye and Chalazion
    • 11% Irritated Eye Causing Swelling
    • 11% Acute Postinfectious Glomerulonephritis

Swelling of One Eye Checker

Take a quiz to find out why you’re having swelling of one eye.

Take a quiz