What is “Pink Eye”? – Are You Contagious
“Pink eye” is the everyday name people use for conjunctivitis, which simply means inflammation of the conjunctiva — the thin, clear layer covering the white part of your eye and the inside of your eyelids. When this layer gets irritated or infected, the tiny blood vessels inside it become more noticeable, giving the eye that telltale pink or reddish look.
While “pink eye” sounds like one single condition, it’s actually an umbrella term. There are a few different types of conjunctivitis, and knowing which one you’re dealing with helps guide the best treatment. The three most common types are allergic, bacterial, and viral.
Allergic Conjunctivitis
If your eyes get red, itchy, and watery during allergy season, this is likely the culprit. Allergic conjunctivitis happens when your eyes react to things like pollen, dust, pet dander, or mold. It’s not contagious, and it usually affects both eyes.
The biggest clue? Intense itching. You may also notice puffiness and lots of tearing, often along with sneezing or a runny nose. Treatment focuses on avoiding triggers and using allergy-friendly eye drops to calm the irritation.
Bacterial Conjunctivitis
This type is caused by bacteria and is contagious, but the good news is it’s very treatable. Bacterial conjunctivitis often comes with thicker yellow or green discharge, and you might wake up with your eyelids stuck together in the morning.
With prescription antibiotic eye drops or ointment, symptoms usually improve quickly. Good hand hygiene is key to preventing spread.
Viral Conjunctivitis
Viral conjunctivitis is the most common type and often shows up alongside a cold. It’s also contagious, especially in the early stages.
Symptoms typically include watery discharge, redness, and a gritty or irritated feeling in the eye. It may start in one eye and move to the other. While it can’t be treated with antibiotics, it usually clears up on its own within a week or two. Cool compresses and artificial tears can help keep your eyes comfortable while it runs its course.
If you’re ever unsure which type you have, you can visit one of our many eye care professionals at Signature Eye Care to help you get the right diagnosis 
Written by: Dr. Jennifer Thai
