Intralenticular Foreign Bodies
In rare instances, a small foreign body can perforate the cornea and the anterior lens capsule and become lodged within the lens. If the foreign body is not composed of iron or copper and the anterior lens capsule seals the perforation site, the foreign body may be retained within the lens without significant complication. Intralenticular foreign bodies may cause cataract formation in some cases but do not always lead to lens opacification.
Excerpted from BCSC 2020-2021 series: Section 11 - Lens and Cataract. For more information and to purchase the entire series, please visit https://www.aao.org/bcsc.