Eye crust, also known as eye gunk or "sleep," is the crusty material found in the corners of your eyes upon waking. It is a common and typically harmless accumulation of discharge.
Why Does Eye Crust Form?
According to the provided reference (October 22, 2020), eye discharge forms because when you're asleep, you don't blink the way you do during the day. Blinking normally occurs 10 to 20 times per minute and serves to wash away protective mucus and other debris from the surface of the eye.
During the day, blinking helps clear away:
- Mucus produced by the conjunctiva
- Oils from the meibomian glands
- Dead skin cells
- Dust and other particles
When you are asleep, this natural cleansing process stops. The mucus, oils, and debris collect and dry in the corners of the eyes, forming the crusty substance you see in the morning.
What is Eye Crust Made Of?
Eye crust is primarily composed of:
- Mucus: A protective layer produced by the eye.
- Oils: Secretions from glands around the eyes, helping to lubricate and protect.
- Dead skin cells: Shed from the eyelids and surrounding skin.
- Tears: The watery component of eye lubrication.
- Dust and debris: Any particles that entered the eye during the day.
This mixture dries out, resulting in the sticky or crusty texture.
Removing Eye Crust
Typically, a small amount of eye crust is normal. It can usually be gently wiped away from the corners of your eyes.
Here are some practical tips for removal:
- Use a warm compress: Apply a clean cloth soaked in warm water to the closed eye for a few minutes. This can help soften stubborn crust before gently wiping it away.
- Wipe gently: Use a clean cloth or cotton pad to wipe the crust away from the eye, moving from the inner corner outwards.
- Use a fresh cloth for each eye: If you have crust in both eyes, use a different clean cloth for each to avoid potential spread of germs.
While a small amount of eye crust is normal, changes in its amount, color, or consistency, or if it's accompanied by redness, pain, or blurred vision, could indicate an underlying issue and should be discussed with a healthcare professional.
