Which statement is true about corneal epithelial abrasion healing?

Which statement is true about corneal epithelial abrasion healing?

• A. It heals with scarring
• B. It never heals
• C. It heals within 24-48 hours with no scarring
• D. It takes weeks

Answer: (C)

Healing of a corneal epithelial abrasion relies on the cornea’s strong ability to regenerate its outer layer. When the surface is damaged, cells at the edge of the defect migrate to cover the area, then proliferate to restore a smooth, thin epithelial layer and the basement membrane. This re‑epithelialization typically happens within about 24 to 48 hours for a simple, superficial abrasion, and because the epithelial surface heals without forming scar tissue, vision remains clear. Deeper injuries that involve the stroma or infections can lead to scarring and longer recovery, which is why statements suggesting permanent scarring, non-healing, or a multi-week course aren’t the usual pattern for a superficial corneal epithelial abrasion.

Healing of a corneal epithelial abrasion relies on the cornea’s strong ability to regenerate its outer layer. When the surface is damaged, cells at the edge of the defect migrate to cover the area, then proliferate to restore a smooth, thin epithelial layer and the basement membrane. This re‑epithelialization typically happens within about 24 to 48 hours for a simple, superficial abrasion, and because the epithelial surface heals without forming scar tissue, vision remains clear. Deeper injuries that involve the stroma or infections can lead to scarring and longer recovery, which is why statements suggesting permanent scarring, non-healing, or a multi-week course aren’t the usual pattern for a superficial corneal epithelial abrasion.