Wrapped in Conjunctiva: Subconjunctival Silicone Oil Bubbles Causing Corneal Dellen

Abstract

Silicon oil is widely used in vitreoretinal surgery as a long-term tamponade; however, it is associated with several complications. One such complication is the migration of silicon oil into the subconjunctival space through inadequately sealed or open sclerotomy space. Subconjunctival silicon oil can lead to surface irregularities of the eye, predisposing to secondary complications such as congestion, foreign body sensation, and in extreme cases, corneal dellen formation. In rare instances, these lesions may be associated with inflammation or infection. Timely removal of subconjunctival silicon oil is essential to restore ocular surface integrity and prevent complications. We report two cases of corneal dellen that developed secondary to encapsulated subconjunctival silicon oil and its subsequent management.