Blog Hero

What Is Commonly Misdiagnosed as Pink Eye?

Book Appointment
A zoomed in image of a person's eye. The eye is red, irritated, and swollen from pink eye or another condition.

Pink eye, or conjunctivitis, is a common eye condition. It’s usually harmless, but its noticeable symptoms of redness, itching, and discharge can make it a frustrating experience. 

However, what if you were to misdiagnose your case  pink eye? At times, other conditions can mimic the symptoms of conjunctivitis, leading to treatment delays or unnecessary worry. 

Some common conditions that can be misdiagnosed as pink eye include: 

  • Dry eye
  • Blepharitis
  • Uveitis
  • Cornea injuries
  • Eye allergies

What Is Pink Eye? 

Before we dive into misdiagnoses, let’s briefly cover what pink eye is. Conjunctivitis refers to an inflammation or infection of the conjunctiva—the thin, clear tissue that lines the inside of your eyelid and covers the white part of your eye. 

Common causes of pink eye include:

  • Viral infections 
  • Bacterial infections 
  • Allergies 
  • Eye irritants (e.g., chlorine, smoke, or dust) 

Symptoms typically include a red or pink tint in the eye, itchiness, discharge, tearing, and light sensitivity. While it’s often mild, the precise cause (viral, bacterial, or other) dictates the appropriate treatment. 

5 Conditions Commonly Mistaken for Pink Eye 

It’s easy to jump to the conclusion of “pink eye” when you notice redness or discomfort. However, pink eye symptoms overlap with several other eye conditions that require different approaches for treatment. 

1. Dry Eye Syndrome 

Dry eye syndrome occurs when your eyes stop producing enough tears or when your tears evaporate too quickly. 

Dry eyes can cause redness, irritation, and a gritty sensation, mimicking the symptoms of pink eye.

Key differences from pink eye include:

  • Symptoms like burning, stinging, or heavy eyelids are more common with dry eye syndrome. 
  • Minimal to no discharge, unlike the discharge often seen with conjunctivitis. 

If dry eye is suspected, lubricating eye drops and lifestyle changes (like taking breaks from screens) can provide relief.  

2. Blepharitis 

Blepharitis is an inflammation of the eyelids caused by clogged oil glands near the base of your eyelashes. 

Both blepharitis and pink eye can result in red, swollen eyes accompanied by itchiness and crustiness. 

Key differences from pink eye include:

  • With blepharitis, flakes or dandruff-like scales are often visible at the base of the eyelashes. 
  • Unlike pink eye, blepharitis isn’t contagious and usually doesn’t involve significant discharge. 

Treatment for blepharitis involves maintaining eyelid hygiene by cleaning them regularly and using warm compresses. 

3. Uveitis 

Uveitis refers to inflammation inside the eye, particularly of the uvea (a part of the eye made up of the iris, ciliary body, and choroid). 

Uveitis shares symptoms like red eyes, light sensitivity, and eye discomfort with pink eye. 

Key differences from pink eye include:

  • Uveitis often causes deep eye pain and blurry vision, which are less common in conjunctivitis. 
  • Requires urgent care, as it can lead to severe complications like vision loss if untreated. 

If you experience these symptoms, consult an eye care professional immediately. 

4. Corneal Abrasion 

A corneal abrasion is a scratch on the surface of your cornea. It’s typically caused by dust, grit, or accidental scraping. 

Why it’s misdiagnosed: Redness, tearing, and sensitivity to light caused by an abrasion may be mistaken for pink eye. 

Key differences from pink eye include:

  • Eye pain is usually sharper and more pronounced with a corneal abrasion. 
  • The condition may follow a recent injury or trauma to the eye. 

Treatment often includes lubricating drops, antibiotic ointments to prevent infection, and a protective eye shield. 

5. Allergic Conjunctivitis 

While related to conjunctivitis, this type is specifically caused by allergens like pollen, pet dander, or dust mites. 

The redness and itching associated with allergic conjunctivitis closely resemble symptoms of infectious pink eye. 

Key differences from non-allergic pink eye include:

  • Allergic conjunctivitis usually presents with both eyes affected. 
  • Other allergic symptoms like sneezing, runny nose, or watery eyes. 
  • No thick discharge—just watery tears. 

Antihistamines or allergy eye drops can help alleviate symptoms. 

How to Avoid Misdiagnosis 

A patient gestures as they explain the symptoms they are experiencing in their eye in detail to their optometrist.

Misdiagnosed eye conditions can result in delayed treatment and prolonged discomfort. Here’s how to reduce that risk: 

1. See an Eye Health Expert 

Even if symptoms seem minor, a proper diagnosis from an optometrist or medical doctor is the first step toward effective treatment. They will examine your eye under magnification to distinguish between pink eye and look-alike conditions.  

2. Share Your Medical History 

Be upfront about recent injuries, illnesses, or allergies. This information provides valuable clues about the cause of your symptoms. 

3. Ask Targeted Questions 

Talk to your optometrist about the specific cause of your symptoms. Questions like, “Could this be an allergic response or dry eye issue?” can facilitate discussions.  

4. Know When It’s an Emergency 

If you experience severe pain, sudden changes in vision, or extreme sensitivity to light, seek immediate medical attention—these symptoms may indicate a more serious problem like uveitis or a scratched cornea. 

Protect Your Eyes & Prioritize Your Health 

While pink eye is common and often harmless, other conditions with similar symptoms may require urgent attention. Knowing what to look for can help you make informed decisions about when to seek professional care. 

At Optometric Group of Fontana, Rancho Cucamonga, & Upland, our professional staff is here to help you get to the bottom of your eye health concerns. Book an appointment with us today!

Written by Dr. Jason Flores

Dr. Flores earned his Doctorate Degree in Optometry from Indiana University School of Optometry. He has over 15 years of clinical experience. He is a member of the American Optometric Association and has had the honor of serving as the president of the Inland Empire Optometric Society. His clinical interests include the treatment of dry eye syndrome as well as the use of nutrition to enhance patient care. Outside of the office, Dr. Flores is an avid cyclist and enjoys family trips to Disneyland with his wife and son.

More Articles By Dr. Jason Flores
instagram facebook facebook2 pinterest twitter google-plus google linkedin2 yelp youtube phone location calendar share2 link star-full star star-half chevron-right chevron-left chevron-down chevron-up envelope fax