Related Experiment Video
Updated: Aug 13, 2026

Subretinal Transplantation of Human Embryonic Stem Cell Derived-retinal Pigment Epithelial Cells into a Large-eyed Model of Geographic Atrophy
Published on: January 22, 2018
Vitreous prolapse and IOL dislocation during intravitreal injection of triamcinolone acetonide
Robert F Degenring1, Gangolf Sauder
1Department of Ophthalmology Cologne-Merheim, Cologne Hospitals, Ostmerheimer Str. 200, 51109, Cologne, Germany. robert.degenring@kliniken-koeln.de
Background:
To report on procedure-related anterior segment complications during intravitreal injections.
Methods:
In a prospective interventional case series, 614 eyes received a total of 723 intravitreal injections of about 20 mg triamcinolone acetonide (in 0.2 ml) after paracentesis and aqueous humor drainage for various indications.
Results:
In three eyes (0.49% of all eyes) a vitreous prolapse occurred during the injection. In one eye, the vitreous prolapse was combined with dislocation of the intraocular lens (IOL). All three eyes were pseudophakic, showing an posterior capsule defect, and the IOL located in the ciliary sulcus. They were treated by translimbal vitrectomy, and one eye with reposition of the IOL. No other procedure-related postoperative complications were observed during injection or follow-up (7.8+/-7.1 months).
Conclusions:
Intravitreal injections may cause a vitreous prolapse into the anterior chamber with or without IOL decentration or dislocation in predisposed eyes. Ophthalmologists should be aware of this possible complication and inform patients at risk.
Related Concept Videos
Glaucoma: Overview
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...
Angle Closure Glaucoma: Treatment
Ophthalmic Drug Delivery Systems

