Abstract
Purpose: To evaluate the incidence, cause, and effect of intraocular lens (IOL) dislocation after combined cataract extraction and trabeculectomy.Setting: An ophthalmic ambulatory surgery center in Lynwood, California.Methods: This retrospective study comprised 150 patients with open-angle glaucoma who had either planned extracapsular cataract extraction (ECCE) (n = 96) or phacoemulsification (n = 54) combined with IOL implantation and trabeculectomy. I reviewed type of cataract extraction, preoperative glaucoma medications, axial length, and amount of filtration achieved postoperatively.Results: The lens dislocated in 20 eyes (13.3%), with the highest incidence after planned ECCE (18.7%) and the lowest after phacoemulsification with capsulorhexis (3.7%). Eighteen of 30 eyes (60%) that had excessive filtration also had IOL dislocation. Mean induced postoperative myopia in eyes with lens dislocation was −2.25 diopters (D) ± 0.55 (SD).Conclusions: Anterior IOL dislocation was related to increased postoperative filtration and was more common after planned ECCE. In all cases, it caused a distorted pupil, posterior synechias, and induced myopia of over −1.00 D.
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