The 12-month results of modified 360-degree suture trabeculotomy surgery

Session Details

Session Title: Special Cases
Session Date/Time: Friday 20/02/2015 | 08:30-10:30
Paper Time: 08:48
Venue: Sadirvan B
First Author: : İ.Armay -
Co Author(s): :                  

Abstract Details


In this retrospective study, we aimed to report the results of the Modified 360-degree suture trabeculotomy (M360°ST) surgery as a blebless ab externo Schlemm canal procedure, in adult patients with open angle glaucoma (OAG) with at least 12 months of follow-up.


Gazi University, School of Medicine, Department of Ophthalmology, Ankara, Turkey


The M360°ST was performed on 16 eyes of 16 patients with various OAGs (3 eyes with primary open-angle, 10 eyes with pseudoexfoliation, and 3 eyes with uveitic glaucoma) resistant to maximal topical treatment. In all cases, we have used the same surgical method as described by Chin et al (2012). In five patients, ST was combined with phacoemulsification. Eight eyes were phakic and 3 eyes were pseudophakic. Main outcome measures were the surgical success rate, mean postoperative intraocular pressure (IOP), the number of antiglaucoma medications, and the operative complications.


The mean follow-up period was 16.31 months (range 12-20 months). Baseline IOP decreased from 28.88±9.75 mmHg on 3.12±0.89 medications to 12.44±3.76 mmHg (p=0.01) on 0.31±0.79 medications (p=0.01) at 12 months postoperatively accounting for a 56.93% reduction. The complete and qualified success rates were 81.25%, and 93.75%, respectively in the 12th month. Hyphema (in all cases), peripheral anterior synechia (in 4 cases) intraoperative iris prolapse (in 3 cases) and transient elevation of the IOP (in 3 cases) were noted.


The M360°ST appears to be a valuable option for the surgical treatment of OAG. Our results are equivalent to previously published results for ab externo trabeculotomy. Future studies are needed to explore the remote side effects and the long-term effects of this procedure on IOP.

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