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What is Commonly Misdiagnosed as Pink Eye?

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An optometrist examines a child's eye, which is obviously infected from conjunctivitis.

When your eyes are red, itchy, or watery, it’s easy to jump to conclusions and assume you have pink eye (conjunctivitis). After all, red eyes are one of the most recognizable symptoms of this common condition. However, other eye issues can mimic the symptoms of pink eye, including dry eye, styes, and allergies. These similarities can easily result in misdiagnosis

Identifying the true cause of your symptoms is important, as different conditions require different treatments.

What is Pink Eye?

Pink eye, or conjunctivitis, refers to inflammation of the conjunctiva—the clear membrane covering the white part of the eye. Viral and bacterial infections are both common causes, but allergies or irritants like smoke or chemicals can also result in conjunctivitis. Often, when people use the term “pink eye”, they’re referring to the viral or bacterial forms.

Symptoms of pink eye typically include:

  • Redness or bloodshot eyes
  • Itching or burning sensations
  • Excessive tearing or discharge
  • Swelling around the eyes
  • Sensitivity to light

While pink eye is generally mild, it’s highly contagious in its viral and bacterial forms. If you suspect you have pink eye, consider seeing your eye doctor to determine the cause and receive appropriate treatment.

Conditions That Are Commonly Misdiagnosed as Pink Eye

Several conditions can present with symptoms similar to viral or bacterial pink eye. However, these conditions require different treatments. Here are some of the most common:

Allergic Conjunctivitis

Allergic conjunctivitis is often mistaken for viral or bacterial pink eye because it causes similar symptoms, including redness, itching, and watery eyes. However, allergic conjunctivitis is triggered by allergens such as pollen, pet dander, or dust mites rather than viruses or bacteria.

How to tell the difference:

  • Allergic conjunctivitis often affects both eyes simultaneously.
  • Itching is a primary symptom, but is less common in viral or bacterial pink eye.
  • There may be a history of allergies, such as hay fever or seasonal allergic reactions.
  • Allergic conjunctivitis is typically not accompanied by yellow or green discharge, which is more common in bacterial pink eye.

Treatment for allergic conjunctivitis usually involves relieving symptoms with antihistamine eye drops or oral antihistamines. Avoiding known allergens also helps.

Dry Eye Syndrome

Dry eye syndrome occurs when the eyes don’t produce enough tears or when the tears produced evaporate too quickly. Dry eye often leads to irritation, redness, and a gritty or burning sensation, which can easily be confused with the discomfort caused by pink eye.

How to tell the difference:

  • Dry eye symptoms tend to worsen in dry, windy, or smoky environments, or after prolonged screen use.
  • You may experience a sensation of something being stuck in your eye, which isn’t typically associated with pink eye.
  • Dry eye syndrome is often a chronic condition and may come and go, while pink eye tends to be more sudden and may resolve within a few days.

Treatment for dry eyes involves lubricating eye drops (artificial tears), lifestyle adjustments, and, in some cases, prescription medications to increase tear production.

Blepharitis

Blepharitis is an inflammation of the eyelids, often caused by bacterial infections or problems with oil glands. It can lead to red, irritated eyes, swelling, and crusting around the eyelashes, which may mimic the symptoms of pink eye.

How to tell the difference:

  • Blepharitis often causes crusty flakes or debris around the eyelashes, which isn’t a typical symptom of pink eye.
  • The redness tends to be focused around the eyelids and may extend to the eye’s surface.
  • There may be a feeling of burning or grittiness, the discomfort  from which can persist even after the eyelids are cleaned.

Blepharitis is often managed with regular eyelid hygiene (using warm compresses and gentle eyelid scrubs) and antibiotic ointments or medications to treat underlying infections.

Subconjunctival Hemorrhage

A close-up of a patients eyes, the left has a small hemorrhage.

A subconjunctival hemorrhage occurs when a small blood vessel in the white part of the eye breaks, causing a bright red patch to appear. The result can look alarming, but it typically isn’t painful and doesn’t involve the other common symptoms of pink eye, such as discharge or itching.

Subconjunctival hemorrhage usually resolves on its own within 1–2 weeks without treatment. However, if significant pain, vision changes, or frequent occurrences occur, it’s important to see an eye care professional.

Corneal Abrasion

A corneal abrasion is a scratch or injury to the cornea, the clear surface of the eye. This condition can be painful, causing redness, tearing, and sensitivity to light—symptoms that overlap with those of pink eye. However, a corneal abrasion is more likely to cause intense pain with blinking and a foreign body sensation.

Corneal abrasions require prompt treatment, including antibiotic eye drops to prevent infection and, in some cases, a patch or other measures to protect the eye as it heals.

Uveitis

Uveitis refers to inflammation of the uvea, the middle layer of the eye. It can lead to redness, pain, and light sensitivity, which can resemble the symptoms of pink eye. However, uveitis is often more serious and can lead to vision loss if left untreated.

If you suspect uveitis, it’s important to seek medical attention immediately. Treatment may include corticosteroids or other medications to reduce inflammation.

Seek Professional Help from Vision Veritas Eyecare

If you experience eye redness, pain, or discomfort that doesn’t improve after a few days, or if you notice vision changes, consult an eye care professional. A thorough eye examination can help determine the exact cause of your symptoms and ensure you receive the appropriate treatment.

At Vision Veritas Eyecare, we are committed to providing comprehensive care and expert guidance for all your eye health needs. If you’re experiencing eye discomfort or suspect a misdiagnosis, don’t hesitate to schedule an appointment with one of our eye doctors.

Written by Vision Veritas Eyecare

We’re a family-owned and operated business run by sisters Dr. Anita Carleo and Dr. Olivia Carleo. With the help of our expert team of optometrists, we strive to optimize your eye health and tailor your experience to your unique eye health needs, big or small. With our exceptional service and patient care, we show you how much you mean to us.

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