Pink Eye (Conjunctivitis)
Pink eye, also known as conjunctivitis, is an inflammation of the conjunctiva, the clear tissue that lines the eyelid and covers the white part of the eye. It can cause redness, irritation, and discharge and may be contagious depending on the cause.
Quick Facts
- Can be caused by viruses, bacteria, or allergies
- Viral and bacterial forms are contagious
- Common in children but affects all ages
- Symptoms often improve within a few days to weeks
- Good hygiene helps prevent spread
Symptoms
Common symptoms of pink eye include:
- Redness in one or both eyes
- Eye discharge (watery or thick)
- Itching or irritation
Other symptoms may include crusting of the eyelids, sensitivity to light, or a gritty feeling in the eye. Pink eye can sometimes be mistaken for allergies or other eye conditions.
Causes
Pink eye can have several causes depending on the type.
Common causes include:
- Viral infections (most common)
- Bacterial infections
- Allergic reactions (pollen, dust, pet dander)
- Irritants such as smoke, chemicals, or contact lenses
Risk Factors
You may be at higher risk if you:
- Are exposed to someone with an eye infection
- Have allergies
- Use contact lenses
- Are in close-contact environments like schools or daycare
Treatments
Treatment depends on the underlying cause.
Common treatment options include:
- Supportive care such as artificial tears and warm compresses
- Antibiotic eye drops for bacterial conjunctivitis
- Allergy medications for allergic conjunctivitis
Most mild cases improve with proper hygiene and home care.
When to Seek Care
See a healthcare provider if symptoms are severe, worsening, or not improving within a few days. You should also seek care if there is significant pain, vision changes, or sensitivity to light.
