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Title: Incidence of Damage to the Crystalline Lens During Intravitreal Injections
Authors: Meyer, Carsten H.
Rodrigues, Eduardo B. [UNIFESP]
Michels, Stephan
Mennel, Stefan
Schmidt, Joerg C.
Helb, Hans-Martin
Hager, Annette
Martinazzo, Mauricio [UNIFESP]
Farah, Michel E. [UNIFESP]
Univ Bonn
Universidade Federal de São Paulo (UNIFESP)
Triemli Hosp
Univ Marburg
House Thousand Windows
Issue Date: 1-Oct-2010
Publisher: Mary Ann Liebert Inc
Citation: Journal of Ocular Pharmacology and Therapeutics. New Rochelle: Mary Ann Liebert Inc, v. 26, n. 5, p. 491-495, 2010.
Abstract: Purpose: To report the incidence of traumatic lens injuries as a complication of intravitreal injection at 5 high-volume academic centers.Methods: We determined in a retrospective, interventional, multicenter case series the consecutive number of the injections between January 5, 2006 and December 22, 2008 from the injection log books. All injections were performed under sterile conditions in a laying position, 3.5-4.0 mm behind the limbus in an oblique fashion. the main outcome measure was the incidence of lens damage.Results: A total of 32,318 intravitreal injections were performed, and 3 cases of iatrogenic lens damage were reported during 36 consecutive months. All affected eyes were hyperopic. the overall incidence rate of lens injury was 0.006% (2/32,318) for intravitreal injections and 1 during a paracentesis 0.003 (1/32,318). the rate of phakic eyes determined was 67%, and thus, the incidence rate of lens damage in phakic eyes was 0.009% (2/21,653) (95% confidence interval, 0.00%-0.05%).Conclusions: Although there is no agreement regarding the proper intravitreal injection technique, the incidence of traumatic injuries to the crystalline lens was very low in a large series of injected patients in a community setting. the incidence compares favorably with that reported in clinical trials in which much more extensive preinjection preparation was mandated. A good preparation of the surgical incision with proper anesthesia and detailed information of the patient, as well as good anatomical skills of the treating physician, are mandatory to prevent this rare adverse event.
ISSN: 1080-7683
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