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Clinical Trials in China / NCT05161520
Active, not recruiting Not applicable

Impact of Capsular Tension Ring Implantation on Intraocular Lens Position

NCT05161520 · tracked via the Priya Life Science China tracker
Sponsor
Xuhua Tan
Phase
Not applicable
Started
2021-12-16
Last updated
2026-09-23

Condition(s) studied

CataractHigh Myopia

Investigational drug(s) / intervention(s)

phacoemulsification combined with IOL and CTR implantationphacoemulsification combined with IOL implantation

phacoemulsification combined with IOL and CTR implantation: Device: CTR (276001G； OPHTEC BV, Netherlands) Device: IOL (920H; Rayner Intracular Lenses Limited，Hove，East Sussex，UK) All patients undergo uneventful phacoemulsification by a 3.0 mm temporal transparent corneal incision using Centurion Vision System (Alcon Laboratories, Fort Worth, TX, USA). After the nucleus and cortex are removed, a capsular tension ring is implanted in the capsular bag and then IOL is implanted.

phacoemulsification combined with IOL implantation: Device: IOL (920H; Rayner Intracular Lenses Limited，Hove，East Sussex，UK) All patients undergo uneventful phacoemulsification by a 3.0 mm temporal transparent corneal incision using Centurion Vision System (Alcon Laboratories, Fort Worth, TX, USA). After the nucleus and cortex are removed, IOL is implanted in the capsular bag.

Study summary

This is a randomized controlled trial to investigate the effect of capsular tension ring (CTR) implantation on intraocular lens (IOL) tilt and decentration in cataract patients with high myopia.

Eligibility

Sex
ALL
Min age
18 Years
Max age
85 Years
Healthy volunteers
No
Inclusion Criteria: 1. \> 18 years old; 2. axis length≥26mm; 3. Visually significant cataract; 4. The patient is willing and able to complete all necessary follow-ups and examinations. Exclusion Criteria: 1. Intraoperative or postoperative complications: such as intraoperative posterior capsular rupture, zonular dehiscence, secondary glaucoma, endophthalmitis, etc.; 2. Other ocular comorbidity: such as keratopathy, glaucoma, uveitis, retinopathy, lens dislocation and ocular trauma, etc.; 3. History of intraocular surgery; 4. Severe systemic diseases: such as severe hypertension, diabetes, heart disease, Alzheimer's, Parkinson, etc.; 5. Any condition that the study physician considers to be an impediment to the clinical trial.

Primary outcome measure(s)

  • IOL dencentration — 3 months after surgery
    Measured by anterior segment OCT (CASIA2)

Trial sites (1)

FacilityCityRegionStatus
Zhongshan Ophthalmic Center, Sun Yat-sen University Guangzhou Guangdong

Other trials for the same condition

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Development of a Mobile Terminal-Based Intelligent Detection System for Multiple Anterior Segment Diseases of the Eye Recruiting
Shanghai High Myopia Study Recruiting
Night Driving After Trifocal Versus Monofocal IOL Implantation Starting soon
Effectiveness, Stability and Influence Factors of Femtosecond Laser Assisted Cataract Surgery Recruiting
Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT05161520 on ClinicalTrials.gov ↗ ← All trials in China