14 Possible Causes of Blepharitis

Eyelid function is connected with tear film balance, gland function, lash line structure, blinking, and eye surface protection. The eyelid edges contain small glands and delicate skin surfaces that help maintain moisture and support normal eye surface function. Eyelid-related patterns are commonly discussed in relation to surface balance, skin barrier function, product contact, environmental exposure, and eye surface activity.
These factors may influence how the eyelid margin, lash area, and nearby skin respond during daily routines. This guide reviews 14 commonly referenced influences related to eyelid function and eye surface balance in an educational context.
1. Infection
Eyelid surface balance is commonly discussed in relation to lash line structure, gland function, tear film support, and natural surface organisms. The eyelid margin naturally interacts with nearby skin, lashes, and small glands. When surface balance shifts, the lash line may show changes in texture, moisture, or surface material near the base of the lashes.
Gland function may also influence how the tear layer spreads across the eye surface during blinking. The eyelid margin also helps guide each blink, allowing the tear layer to move evenly across the eye surface while the lash line supports surface protection.