Congenital iris coloboma repair using a modified McCannel suture technique
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Updated: Sep 26, 2026

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Iris Fixation via External Pentagram Suturing
Published on: May 5, 2022
Douglas M Blackmon1, Scott R Lambert
1Emory Eye Center, Emory University, Atlanta, Georgia 30322, USA.
American Journal of Ophthalmology
|April 30, 2003
Abstract
Purpose:
To report a repair of congenital iris coloboma using a modified McCannel suture technique.
Design:
Interventional case report.
Methods:
Retrospective intervention procedure.
Results:
Postoperative repair resulted in restoration of pupil, anterior support of posterior chamber intraocular lens, and improved appearance.
Conclusions:
The modified McCannel suture technique provides acceptable functional and cosmetic repair of congenital iris colobomas.
