Which tool is commonly used to remove rust rings from the cornea?

• A. Bailey's Loop
• B. Algerbrush
• C. Spud
• D. Hypodermic Needle

Answer: (B)

Rust rings are residual iron deposits left on the cornea after a metallic foreign body has been removed. Removing these rings is important to reduce irritation and promote epithelial healing, since the iron can continue to provoke inflammation if left in place.

The Algerbrush is the tool of choice because it’s a small, handheld device with very fine, soft bristles designed to gently scrub the rust ring off the corneal surface. Its soft brushing action lets you control the pressure and direction precisely, lifting the deposited iron without scraping or penetrating deeper layers of the cornea. This minimizes trauma while effectively removing the rust and reducing the risk of scarring.

Other instruments exist for foreign body removal, but they aren’t as well suited for rust rings. A spud, hypodermic needle, or Bailey’s loop can cause more trauma or be less effective at safely detaching the adherent rust. The Algerbrush specifically targets the rust layer and provides the gentlest, most controlled method to clear it.