Eye discharge after sleep: what it may mean

During sleep, blinking stops and tears, mucus, skin cells, and small particles can gather at the eyelid edges. A little pale crust on waking may clear after washing. Thick yellow or green material, eyelids stuck together, or discharge that returns through the day can occur with conjunctivitis, an inflammation of the eye surface. Itching and watery eyes can accompany allergic conjunctivitis. Discharge in only one eye, contact-lens use, or a recent eye injury gives a clinician useful context.

Wash your hands before and after touching the eye. Soften crusts with clean lukewarm water and a fresh cotton pad or clean cloth, wiping from the inner corner outward; use a new part for each wipe and each eye. Do not share towels, cosmetics, or pillowcases, and avoid rubbing. Pause contact lenses and eye makeup while discharge is present. Do not use leftover antibiotic or steroid eye drops without medical advice.

Arrange medical advice if discharge is recurring, increasing, or not settling, especially with swollen lids. Seek urgent eye care for severe pain, light sensitivity, blurred or reduced vision, marked swelling, an injury, or a chemical splash. A newborn, a person with a weakened immune system, or anyone who wears contact lenses should seek advice promptly when discharge develops.

Could the colour and thickness of the discharge suggest irritation, allergy, or infection? Should I stop lenses, and what cleaning method is suitable? Do I need an examination of the eyelids or eye surface?