title: Ab externo scleral fixation of the Cionni modified capsular tension ring.
abstract: The Cionni modified capsular tension ring (CTR) allows for scleral fixation in cases of significant zonular dialysis, providing long-term centration of in-the-bag foldable intraocular lenses. Previous techniques of suture placement require placement of the primary incision along the axis of zonular weakness or enlarging and/or distorting the primary incision to attain proper positioning. They also use blind passes of the needle under the iris to approximate the ciliary sulcus. We describe an external closed-system approach for preplacing 10-0 polypropylene sutures in the ciliary sulcus for a Cionni modified CTR under topical anesthesia. This technique does not use blind passes of the suture needle and results in accurate placement of the sutures in the ciliary sulcus under a closed and stable system.
authors.affiliation: John Moran Eye Center, University of Utah Health Sciences Center, 50 North Medical Drive, Salt Lake City, UT 84132, USA.
authors.forename: I I
authors.initials: II
authors.lastname: Ahmed
authors.forename: A S
authors.initials: AS
authors.lastname: Crandall
mesh_terms: D000293:Adolescent; D004172:Diplopia / Q000209:etiology; D006801:Humans; D007903:Lens Capsule, Crystalline / Q000601:surgery*; D007906:Lens Subluxation / Q000150:complications / Q000601:surgery; D008297:Male; D008382:Marfan Syndrome / Q000150:complications; D011126:Polypropylenes; D019736:Prostheses and Implants; D019919:Prosthesis Implantation / Q000379:methods*; D012590:Sclera / Q000601:surgery*; D013536:Suture Techniques; D013537:Sutures; D014792:Visual Acuity
chemical_list: D011126:Polypropylenes