Why People Are Surprised (and a Little Grossed Out)
While most people know the substance is harmless, many were unsettled to learn that eye discharge is essentially a cocktail of dried mucus and debris your eyes pushed out while you slept. For some, the revelation that their eyes “self-clean” overnight—and that the crust is the residue of that process—was unexpectedly shocking.
But once the initial ick-factor wears off, most people find it fascinating how hard our bodies work even when we’re unconscious.
What’s Normal vs. Not Normal
Most morning eye discharge is totally normal. However, certain changes may indicate irritation or infection.
Normal discharge:
- Light yellow or white
- Sticky or flaky
- Only noticeable in the morning
- Not accompanied by pain or significant redness
Not normal (and worth getting checked when possible):
- Thick, green, or excessive discharge
- Eyes glued shut
- Strong redness or swelling
- Pain, sensitivity to light, or changes in vision
These symptoms can be caused by things like allergies or irritation—but they can also signal infection, and should be evaluated by a professional.
Why You Shouldn’t Pick or Rub It Off
Rubbing your eyes can cause irritation, redness, or even tiny scratches. Instead:
- Wash your hands first
- Use a warm, damp cloth
- Gently wipe from the inner corner outward
This helps soften the dried discharge and clean the area safely.