What characterizes extracapsular extraction?

Extracapsular extraction is characterized by the technique of retaining the integrity of the posterior capsule while removing the lens. This procedure aims to remove the cataractous lens while preserving the capsule surrounding the lens, specifically the posterior capsule. By keeping the posterior capsule intact, the risk of complications such as vitreous loss is reduced, and it also helps to maintain the eye's structural integrity, serving as a supportive layer for intraocular lenses that may be placed afterward.

In this procedure, a larger incision at the limbus is often made compared to other techniques. This allows the surgeon to extract the lens in a controlled manner while minimizing damage to surrounding tissues, particularly preserving the posterior capsule. Thus, the focus on maintaining this capsule is essential in identifying the defined characteristic of extracapsular extraction.