Original Paper

Risk Factors of Iris Posterior Synechia Formation after Phacovitrectomy with Three-Piece Acrylic IOL or Single-Piece Acrylic IOL
Seong-Woo Kim^a, Jaeryung Oh^b, Jong-Suk Song^a, Yong Yeon Kim^a, In-kyung Oh^c, Kuhl Huh^a

Departments of Ophthalmology,
^aKorea University Guro Hospital,
^bKorea University College of Medicine and
^cKorea University Ansan Hospital, Seoul, Korea

Address of Corresponding Author

Ophthalmologica 2009;223:222-227 (DOI: 10.1159/000203366)

  Key Words

• Phacoemulsification
• Vitrectomy
• Phacovitrectomy
• SA60AT intraocular lens
• MA60BM intraocular lens
• Iris posterior synechiae

  Abstract

Aims: To identify the risk factors of posterior iris synechia formation after phacovitrectomy with posterior chamber single-piece acrylic intraocular lens (IOL; Acrysof® SA60AT) or 3-piece acrylic IOL (Acrysof® MA60BM) implantation. Methods: We selected 153 eyes of 153 patients treated by phacovitrectomy between March 2000 and August 2006 and retrospectively reviewed the relationship between iris posterior synechiae and various factors, such as IOL type, tamponade, preoperative iris posterior synechiae, major indications for surgery, axial length and preoperative anterior chamber (AC) depth. Results: IOL type (p = 0.0447), C₃F₈ gas tamponades (p = 0.0074), preoperative iris posterior synechiae (p = 0.0001) and postoperative AC fibrin deposition (p = 0.0303) were significantly associated with postoperative iris posterior synechiae by multiple logistic regression analysis. The odds ratio (OR) for single-piece IOL versus 3-piece IOL was 2.658 (95% confidence interval, CI: 1.010-6.993), the OR for C₃F₈ gas versus balanced salt solution was 4.051 (95% CI: 1.455-11.281), for the presence of preoperative iris posterior synechiae 12.868 (95% CI: 3.511-47.165), and the OR for postoperative AC fibrin deposition was 6.012 (95% CI: 1.186-30.468). Conclusion: Preoperative iris posterior synechiae, C₃F₈ gas tamponade, postoperative AC fibrin deposition and the single-piece IOL could increase the rates of iris posterior synechiae after phacovitrectomy.

Copyright © 2009 S. Karger AG, Basel

  Author Contacts

Kuhl Huh, MD
Department of Ophthalmology
Korea University Guro Hospital
No. 80 Guro-dong, Guro-ku, Seoul 152-703 (Korea)
Tel. +82 2 2626 1276, Fax +82 2 857 8580, E-Mail ksw64723@paran.com

  Article Information

Received: July 12, 2007
Accepted after revision: October 18, 2007
Published online: February 21, 2009
Number of Print Pages : 6
Number of Figures : 0, Number of Tables : 3, Number of References : 14