Eye discharge includes any fluid, mucus, pus, or crust coming from the eye. Its nature helps indicate underlying disease.
Types and Causes
Watery discharge occurs in viral conjunctivitis, allergy, and irritation, while thick yellow or green pus suggests bacterial infection. Stringy or ropy mucus is common in allergic or chronic conjunctivitis, and oily or flaky material along the lashes often reflects blepharitis or meibomian gland dysfunction.
- Blocked tear ducts cause persistent mucous discharge and watering
- Contact lens-related infections produce painful discharge with redness and blur
- Systemic infections in newborns can present with significant eye discharge
- Certain eye drops may cause mild transient mucus as the eye reacts
Assessment
History of onset, associated pain, vision change, and exposure helps distinguish benign from serious causes. Treatment ranges from hygiene and lubricants to targeted antibiotics or anti‑allergy therapy.
- Severe pain, photophobia, or reduced vision with discharge warrants urgent care
- Good hand hygiene and avoiding shared towels limit spread of infection
- Contact lens wear should stop until reviewed
- Persistent discharge may require investigation of lids and tear drainage
