Bowman's membrane serves which protective function?

Bowman's membrane serves which protective function?

• A. It acts as a protective barrier to prevent bacterial invasion and participates in stromal healing
• B. It actively pumps fluids from the stroma
• C. It forms the posterior limiting membrane
• D. It supplies nutrients to the epithelium

Answer: (A)

The question is about the protective role of Bowman's membrane in the cornea. Bowman's membrane lies between the epithelium and the stroma and acts as a tough, acellular barrier that helps prevent bacteria from invading into deeper corneal layers. It also serves as a scaffold that supports stromal healing after injury, guiding how the stroma remodels when the surface is damaged. It isn’t involved in pumping fluids—that function belongs to the corneal endothelium with its active ion transport. It also doesn’t form the posterior limiting membrane (that’s Descemet’s membrane) and it doesn’t supply nutrients to the epithelium (nutrients reach the epithelium mainly from the tear film and aqueous humor, through the stroma).

The question is about the protective role of Bowman's membrane in the cornea. Bowman's membrane lies between the epithelium and the stroma and acts as a tough, acellular barrier that helps prevent bacteria from invading into deeper corneal layers. It also serves as a scaffold that supports stromal healing after injury, guiding how the stroma remodels when the surface is damaged. It isn’t involved in pumping fluids—that function belongs to the corneal endothelium with its active ion transport. It also doesn’t form the posterior limiting membrane (that’s Descemet’s membrane) and it doesn’t supply nutrients to the epithelium (nutrients reach the epithelium mainly from the tear film and aqueous humor, through the stroma).