Red, irritated eyes can be uncomfortable and concerning. Many people immediately assume they have pink eye (conjunctivitis), but other conditions can cause similar symptoms. Knowing the difference is essential because treatment varies depending on the underlying cause. Our Chandler eye care team at Ocotillo Eyecare discusses more below.
Signs of Pink Eye (Conjunctivitis)
Pink eye occurs when the conjunctiva—the thin membrane covering the white of the eye—becomes inflamed. It can be caused by viruses, bacteria, allergens, or irritants. Symptoms may include:
- Red or pink discoloration in one or both eyes
- Watery or thick discharge, depending on the type of conjunctivitis
- Itchiness or burning sensation
- Crusty eyelids or lashes, especially after sleeping
- Swelling or puffiness around the eye
- Increased tearing and light sensitivity
Bacterial and viral conjunctivitis are highly contagious, while allergic or irritant-based pink eye is not.
Other Conditions That Mimic Pink Eye
Allergies
Allergic conjunctivitis can look a lot like pink eye but is typically accompanied by sneezing, nasal congestion, and itching in both eyes. It is not contagious and often worsens with exposure to allergens like pollen or pet dander.
Dry Eye Syndrome
Chronic dryness can cause redness, irritation, and a gritty feeling in the eyes. Unlike pink eye, dry eye does not usually produce thick discharge but may cause blurry vision and excessive tearing.
Blepharitis
Blepharitis is an inflammation of the eyelids that can cause red, irritated eyes and crusting at the lash line. While uncomfortable, it is not contagious and requires different treatment than pink eye.
Subconjunctival Hemorrhage
A bright red spot on the eye might look alarming, but a subconjunctival hemorrhage is usually harmless. It occurs when a tiny blood vessel breaks under the conjunctiva, often due to strain or minor trauma.
Corneal Issues or Eye Infections
More serious conditions, such as keratitis (corneal infection) or uveitis (inflammation inside the eye), can cause redness and discomfort but usually come with additional symptoms like severe pain, blurred vision, or light sensitivity. These conditions require urgent medical attention.
When to See an Eye Doctor in Chandler
If you experience persistent redness, vision changes, eye pain, or thick yellow or green discharge, it's best to see an eye doctor. Even if it's mild, an optometrist can determine the cause and recommend the right treatment.
Frequently Asked Questions About Pink Eye
Can a bloodshot eye be serious?
Yes, while a bloodshot eye is often caused by minor issues like dryness, allergies, or irritation, it can also indicate a more serious condition like an eye infection, uveitis, or glaucoma. If redness is accompanied by severe pain, vision loss, or discharge, seek medical attention immediately.
Is pink eye contagious?
Yes, viral and bacterial conjunctivitis are highly contagious and spread through direct or indirect contact with an infected person’s eye secretions. To prevent spreading, wash your hands frequently, avoid touching your eyes, and do not share personal items like towels or makeup.
Is pink eye an emergency?
Most cases of pink eye are not an emergency and can be treated at home or with prescription drops. However, if you experience severe pain, blurred vision, extreme light sensitivity, or symptoms that worsen despite treatment, you should see an eye doctor immediately to rule out more serious conditions.