Pink Eye Versus Corneal Infection: Know the Difference
When your eye turns red and irritated, it’s easy to assume it’s just pink eye—a common and often mild condition. But sometimes, that redness could signal something more serious, like a corneal infection. Knowing the difference can help you seek the right treatment quickly—and protect your vision.
What Is Pink Eye?
Pink eye, also known as conjunctivitis, is an inflammation of the thin, transparent layer that lines your eyelid and covers the white part of your eye (the conjunctiva). It’s common, highly contagious (if caused by a virus or bacteria), and usually not serious.
Common Causes:
- Viral infections (most common)
- Bacterial infections
- Allergies
- Irritants like smoke or chlorine
Symptoms:
- Red or pink appearance of the eye
- Watery or thick discharge
- Itching or burning
- Crusty eyelashes (especially in the morning)
- Mild sensitivity to light
What Is a Corneal Infection?
A corneal infection, or keratitis, affects the cornea—the clear, dome-shaped surface that covers the front of the eye. This condition is more serious than pink eye and, if untreated, can lead to vision loss or permanent scarring.
Common Causes:
- Bacterial or fungal infections
- Contact lens misuse
- Eye injuries or scratches
- Viral infections (like herpes simplex)
Symptoms:
- Severe eye pain
- Blurred or reduced vision
- Redness (often more localized than pink eye)
- Sensitivity to light (photophobia)
- Excess tearing or discharge
- Feeling like something is stuck in your eye
Key Differences Between Pink Eye and Corneal Infection
| Feature | Pink Eye (Conjunctivitis) | Corneal Infection (Keratitis) |
| Pain | Mild discomfort or irritation | Moderate to severe pain |
| Vision | Usually normal | Often blurred or reduced |
| Discharge | Watery or sticky | Can be thick or pus-like |
| Light Sensitivity | Mild | Often severe |
| Urgency | Often resolves on its own | Requires immediate medical attention |
When to See a Doctor?
If your symptoms are severe, worsening, or not improving within a few days, see an eye specialist. Immediate care is crucial if you experience:
- Intense pain
- Blurred or lost vision
- Sensitivity to light
- Eye injury
- History of herpes eye infections
How Accord Hospital Can Help?
At Accord Hospital, our experienced ophthalmologists diagnose and treat all types of eye infections with advanced tools and personalized care. Whether it’s a simple case of pink eye or a more serious corneal infection, we’re here to protect your vision and health.
Book an eye consultation today or visit our Eye Care Department for expert diagnosis and treatment.