Pink Eye or Dry Eye? How to Tell the Difference

Keywords:
  • Pink eye symptoms
  • Dry eyes vs pink eye
  • Conjunctivitis treatment
  • Eye irritation causes
  • Dry eye relief
  • Swollen itchy eyes
  • how can I tell if I have pink eye/conjunctivitis or dry eyes
When your eyes feel irritated, red, swollen, puffy or uncomfortable, it’s easy to assume it’s "just dry eyes"but it could be something more serious like pink eye. While these two conditions can share some symptoms, they’re actually quite different in cause, treatment, and impact. Here's how to tell them apart and when to seek help.

Pink eye 

Pink Eye (also known as conjunctivitis) is an inflammation of the thin tissue that lines the white part of your eye and the inside of your eyelids (the conjunctiva). 

It's often caused by:

  • Viruses (most common, highly contagious)
  • Bacteria (also contagious)
  • Allergies (not contagious)
  • Irritants (like smoke or chlorine)
  • Pollutants (e.g. smoke, chemicals, pollution eye irritation)

    Common symptoms:

    • Red or pink discoloration in the whites of the eye
    • Itchy or burning sensation
    • Burning eyes
    • Watery or thick yellow/green discharge
    • Eyelids stuck together in the morning
    • Swollen eyelids
    • Sensitivity to light (sometimes)

    Dry Eye

    Dry Eye Syndrome occurs when your eyes don’t produce enough tears - or the right kind of tears - to stay lubricated. 

    It can be caused by:
    • Screen time and reduced blinking
    • Aging (especially post-menopause)
    • Certain medications (e.g., antihistamines, antidepressants)
    • Autoimmune conditions like Sjögren’s syndrome
    • Environmental factors like dry air or wind
    • Contact lens dry eye
    • Dry eyes in plane or air-conditioned environments
    • Allergies causing dry eyes

    Common symptoms of dry eye:

    • Gritty or sandy feeling
    • Stinging or burning
    • Blurred vision that improves with blinking
    • Eye fatigue, especially at the end of the day
    • Eye constantly watering 
    • Dry blurry eyes
    • Allergic eyes

    How to treat and manage:

    • Pink Eye: Viral types usually clear on their own in 1–2 weeks. Bacterial types may need antibiotic drops. Always wash hands, avoid sharing towels, and don’t wear contact lenses until symptoms resolve.

    • Dry Eyes: Use preservative-free artificial tears regularly - like our Instant Relief Eye Spray. Try a hot compress, like our Heated Eye Wand LED+, consider omega-3 supplements, and use a humidifier in dry environments.

    In summary - how to tell the difference?

    There are 5 key differences between pink eye and dry eye:

    1. Look at Your Tears: Too Many or Too Few?

    • Pink Eye: Causes watery or thick discharge. If your eyes are watering a lot with yellow or green gunk, it could be conjunctivitis.
    • Dry Eyes:May cause eyes constantly watering, but the tears are often a reflex to dryness—not true hydration.
    • Ask yourself:are my tears soothing, or are my eyes still dry and gritty after crying?

    2. Check the Color: Red and Angry or Just Irritated?

    • Pink Eye:Usually causes bright red eyes, especially on the whites.
    • Dry Eyes:Often look slightly red or tired, especially after screen time or long days.
    • Redness from dry eyes is usually mild - pink eye is more dramatic.

    3. Blurry Vision: Temporary or All Day?

    • Pink Eye: May cause blurry vision from sticky discharge.
    • Dry Eyes:Often causes blurry eyes that clear when you blink, especially with tired eye relief drops.
    • Wondering “can dry eyes cause blurry vision?” Yes, and it’s often worse in the evening.

    4. Morning Eyes: Stuck or Just Dry?

    • Pink Eye: Waking up with crusty lashes or stuck eyelids? Classic sign of bacterial pink eye.
    • Dry Eyes:May feel gritty or like burning eyes when you first wake up, but no goopy mess.
    • If you’re asking “why are my eyes glued shut?” - think pink eye.

    5. Timing: Allergy Season or Screen Time?

    • Pink Eye:Can be triggered by allergies, viruses, or bacteria - and spreads fast.
    • Dry Eyes:Often worse in dry air, on planes (dry eyes in plane), or with hormonal changes (menopausal dry eyes).

    Source: American Academy of Ophthalmology (AAO)

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