Document Detail

Factors influencing refractive outcomes after combined phacoemulsification and pars plana vitrectomy: results of a prospective study.
MedLine Citation:
PMID:  17189804     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To evaluate the factors influencing the refractive outcomes of combined phacoemulsification, foldable intraocular lens (IOL) implantation, and pars plana vitrectomy (PPV). SETTING: Department of Ophthalmology, Seoul National University Hospital, Seoul, Korea. METHODS: One hundred fifty-four consecutive patients who had combined phacoemulsification, IOL implantation, and PPV between September 2001 and August 2004 were enrolled in a prospective study. Refractive, keratometric, and axial length measurements were performed preoperatively and 4 months postoperatively. The factors influencing the postoperative refractive outcomes were analyzed. RESULTS: The mean refractive prediction error (ie, actual minus predicted spherical equivalent [SE]) was -0.06 diopters (D) +/- 0.75 (SD). In long eyes (preoperative axial length more than 24.5 mm), the mean predicted SE and actual SE were -0.81 +/- 0.76 D and -1.24 +/- 0.79 D, respectively; the difference was significantly different (P = .001, paired t test). Patients with a preoperative visual acuity worse than 5/200 and those with preoperative foveal detachment had a significant postoperative myopic shift (P = 0.024 and P = 0.002, respectively; paired t test). Postoperative refractive error was not influenced by the intraocular air or gas tamponade during surgery (P = 0.336, paired t test). CONCLUSIONS: The combined surgery included a small biometric error that was within the tolerable range in most cases. However, myopic shifts developed in patients with long axial lengths, poor preoperative visual acuity, and the preoperative presence of foveal detachment.
Jin Wook Jeoung; Hum Chung; Hyeong Gon Yu
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of cataract and refractive surgery     Volume:  33     ISSN:  0886-3350     ISO Abbreviation:  J Cataract Refract Surg     Publication Date:  2007 Jan 
Date Detail:
Created Date:  2006-12-26     Completed Date:  2007-03-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8604171     Medline TA:  J Cataract Refract Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  108-14     Citation Subset:  IM    
Department of Ophthalmology, Seoul National University Hospital and Seoul National University College of Medicine, Seoul, Korea.
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MeSH Terms
Cataract / therapy
Lens Implantation, Intraocular*
Middle Aged
Myopia / etiology*,  physiopathology
Postoperative Complications*
Prospective Studies
Refraction, Ocular / physiology*
Retinal Diseases / surgery
Risk Factors
Visual Acuity

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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