Blepharitis may be caused by usually harmless bacteria on eyelids that become overpopulated. Another common cause is clogged oil glands of the eyelid. Other diseases or conditions may play a role in blepharitis or make it more likely to occur.

Symptom
symptoms are typically worse in the morning as both eyelids are glued together.

• Swollen eyelids.
• Changes in the color of the eyelids.
• Itching or other irritation of the eyelids.
• Flaking of the skin around the eyes.
• Eyelids that appear greasy.
• Crusted eyelashes.
• Eyelids sticking together.
• Tears that appear foamy.
• Watery eyes.
• Red eyes.
• A gritty, burning or stinging sensation in the eyes.
• More frequent blinking.
• Sensitivity to light.
• Blurred vision that usually improves with blinking.