Effect of Co-Implantation of a Capsular Tension Ring on Clinical Outcomes after Cataract Surgery with Monofocal Intraocular Lens Implantation.
10.3349/ymj.2016.57.5.1236
- Author:
Hyun Ju PARK
1
;
Hun LEE
;
Do Wook KIM
;
Eung Kweon KIM
;
Kyoung Yul SEO
;
Tae Im KIM
Author Information
1. The Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, Korea. tikim@yuhs.ac
- Publication Type:Original Article ; Randomized Controlled Trial
- Keywords:
Capsular tension ring;
monofocal IOL;
hyperopic shift;
ocular aberration
- MeSH:
Aged;
Cataract/physiopathology;
*Cataract Extraction;
Contrast Sensitivity;
Female;
Humans;
Lens Implantation, Intraocular/*instrumentation;
Male;
Middle Aged;
Postoperative Period;
Prospective Studies;
Treatment Outcome
- From:Yonsei Medical Journal
2016;57(5):1236-1242
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: The objective was to evaluate the effect of co-implantation of a preloaded capsular tension ring (CTR) and aberration-free monofocal intraocular lens (IOL) on clinical outcomes and visual quality after cataract surgery. MATERIALS AND METHODS: Patients who underwent cataract surgery were randomized into two groups that were implanted with a CTR and IOL (group 1, 26 eyes) or an IOL only (group 2, 26 eyes). At 1 and 3 months after surgery, visual acuity, refractive errors, refractive prediction errors, ocular aberrations, and modulation transfer function (MTF) were analyzed. At 3 months postoperatively, anterior chamber depth (ACD) and contrast sensitivity were evaluated. RESULTS: Group 1 showed greater hyperopic shift, which caused the refractive prediction error at 3 months after surgery to be significantly different between the two groups (p=0.049). Differences in ACD between the preoperative and postoperative periods tended to be greater in group 1 than in group 2. At 3 months postoperatively, internal MTF values at 20, 25, and 30 cycles per degree were significantly better in group 1 than in group 2 (p=0.034, 0.017, and 0.017, respectively). Contrast sensitivity showed comparable results at almost all spatial frequencies between the groups. CONCLUSION: Regarding visual acuity and quality, both groups showed comparable results. Co-implantation of a CTR and aberration-free monofocal IOL was associated with hyperopic refractive outcomes. Surgeons should consider the position of the IOL when planning co-implantation of a CTR and IOL.
