Comparison of Clinical Outcomes After Cataract Surgery With and Without Capsular Tension Ring
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Cataract
- Sponsor
- Yonsei University
- Enrollment
- 52
- Primary Endpoint
- Best corrected visual acuity
- Status
- Completed
- Last Updated
- 11 years ago
Overview
Brief Summary
This study was set up to identify clinical outcomes including a refractive shift or change in IOL calculation accuracy and optical quality after Ophtec® capsular tension ring in the eyes without zonular instability.
Investigators
Eligibility Criteria
Inclusion Criteria
- •age between 40 and 79 years
- •no history of eye surgery or glaucoma
- •a transparent central cornea
- •pupil dilation at the preoperative examination of at least 6.0 mm
- •absence of biomicroscopic signs of pseudoexfoliation
- •normal fundus examination
Exclusion Criteria
- •presence of ocular disease that might affect the visual outcome (e.g., color vision disturbance, chronic uveitis)
- •presence of ocular disease that might affect contrast sensitivity function (e.g., glaucoma, maculopathy, high myopia)
Outcomes
Primary Outcomes
Best corrected visual acuity
Time Frame: 1 month after capsular tension ring and intraocular lens implantation (cataract surgery) using capsular tension ring
Visual acuity measurement using refractive error correction
refractive error
Time Frame: 1 month after capsular tension ring and intraocular lens implantation (cataract surgery) using capsular tension ring
Autokeratometry (KR-7100; Topcon, Tokyo, Japan) and manifested refraction were performed to examine refractive errors
Anterior chamber depth
Time Frame: 3 months after capsular tension ring and intraocular lens implantation (cataract surgery) using capsular tension ring
obtained with a Scheimpflug imaging system (Pentacam; OCULUS Optikgeräte GmbH, Wetzlar, Germany)
Ocular aberrations
Time Frame: 1month after capsular tension ring and intraocular lens implantation (cataract surgery) using capsular tension ring
measured using the ray-tracing aberrometer (iTrace, Tracey Technologies, Houston, TX, USA) at a pupil size of 5 mm in mesopic conditions, without pharmacologic dilatation
Secondary Outcomes
- constrast sensitivity(3 months after capsular tension ring and intraocular lens implantation (cataract surgery) using capsular tension ring)
- Best corrected visual acuity(3 months after capsular tension ring and intraocular lens implantation (cataract surgery) using capsular tension ring)
- posterior capsular opacity grades(3 months after capsular tension ring and intraocular lens implantation (cataract surgery) using capsular tension ring)
- refractive error(3 months after capsular tension ring and intraocular lens implantation (cataract surgery) using capsular tension ring)
- Ocular aberrations(3 months after capsular tension ring and intraocular lens implantation (cataract surgery) using capsular tension ring)