Abstract
Purpose :
To evaluate the long-term efficacy and safety of in the bag implantation of capsular tension ring (CTR) on clinical outcome together with the development of posterior capsular opacification (PCO) and anterior capsular fibrosis (ACF) in cataract eyes complicated with chronic narrow angle glaucoma (CNAG)
Methods :
In this study, 40 eyes which had underwent cataract removal with phacoemulsification and in the bag implantation of hydrophobic acrylic IOL and CTR by the same surgeon were evaluated more than 3 years (group 1). 25 eyes with implantation of the same IOL alone were compared (group 2). The final visual acuity (VA), intraocular pressure (IOP), the degree of PCO and anterior capsular fibrosis, and other postoperative complications were evaluated.
Results :
There were no significant differences of VA, accuracy of postoperative refractive power and IOP changes between the two groups. At 12 months postoperatively, mild degree of PCO and ACF were developed in 6 out of 40 eyes with CTR (group 1) and in 6 out of 25 eyes with IOL alone (group 2). At 3 years, moderate degree of PCO and ACF were developed in 12 out of 40 eyes with group 1 and in 13 out of 25 eyes with group 2. Significant amount of synechia formation and severe ACF were developed in 3 eyes with group 2, but none with group 1.
Conclusions :
The use of CTR in complicated eyes with CNAG can significantly reduce incidence of PCO and anterior capsular fibrosis. Capsular complications together with weak zonules in eyes with CNAG can be successfully prevented by supporting the capsular contour with lens zonule. The use of CTR in complicated cases with CNAG can be an effective and safe procedure to maintain the capsular bag and reduce significant postoperative complications.
This is an abstract that was submitted for the 2016 ARVO Annual Meeting, held in Seattle, Wash., May 1-5, 2016.