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Updated: May 22, 2026

Iris Fixation via External Pentagram Suturing
Published on: May 5, 2022
Reversed needle pass clear-corneal or limbal incision suturing technique using the 3-throw (1-1-1) adjustable square
Julio Narváez1, Jeffrey Jones, Michael Zumwalt
1Department of Ophthalmology, Loma Linda University Medical Center, Loma Linda, California, USA. narvaezjd@verizon.net
Abstract:
A single radial suture is required for a corneal or limbal incision that does not seal despite stromal hydration. In the traditional technique for placing this suture, the needle enters from the corneal side of the limbal incision and exits toward the scleral side and the suture is usually tied with a 3-1-1 surgical knot. We present an improved suturing technique in which the needle path is reversed. The needle enters on the scleral side of the limbal incision, exits on the corneal side toward the apex, and is tied with an adjustable 1-1-1 knot.