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The Role of Capsular Tension Rings in Intraocular Lens Stability in High Myopia Cataract Patients: A Prospective Self-Controlled Study

RecruitingNAAges 18 Years - 90 YearsAllJin Yang
NCT07052825 on ClinicalTrials.gov ↗
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In plain words

What the trial is, and whether it could suit you

Study Purpose: This prospective, self-controlled clinical study aims to evaluate the impact of capsular tension rings (CTR) on intraocular lens (IOL) stability in high myopia patients undergoing bilateral cataract surgery. Each patient will receive CTR implantation in one eye, with the fellow eye serving as control. Postoperative outcomes, including visual acuity, refraction, IOL positioning, and visual quality, will be compared between eyes to assess the effectiveness of CTR. Study Methods: Eligible participants (axial length ≥ 26.0 mm) will undergo femtosecond-assisted phacoemulsification with identical IOLs implanted in both eyes. One eye will be randomly assigned to receive a CTR. All surgeries will be performed by the same surgeon. Follow-up will be conducted at 1 day, 1 week, 1 month, 3 months, and 6 months postoperatively. Assessments will include UCVA, BCVA, refractive error,

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📋 Eligibility rules (as published)
Inclusion Criteria: 1. Age ≥ 18 years. 2. Diagnosed with bilateral age-related cataracts and scheduled for phacoemulsification with IOL implantation in both eyes. 3. High myopia in both eyes, defined as axial length (AL) ≥ 26.0 mm. 4. No significant difference in axial length between the two eyes (e.g., interocular AL difference \< 1.0 mm). 5. Willingness and ability to undergo bilateral surgery within a short interval (e.g., within 1-2 weeks). 6. Able to provide informed consent and comply with the study protocol and follow-up visits. Exclusion Criteria: 1. History of ocular trauma, surgery, or intraocular inflammation in either eye. 2. Presence of other ocular diseases that may affect visual outcomes, such as glaucoma, diabetic retinopathy, macular degeneration, or corneal opacity. 3. Evidence of zonular weakness, pseudoexfoliation, or significant phacodonesis preoperatively. 4. Severe dry eye or poor fixation that may interfere with postoperative imaging. 5. Systemic diseases affecting visual function (e.g., uncontrolled diabetes, neurologic disorders). 6. Participation in other clinical trials that may affect the study outcomes.
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What it tests

  • CTR implantation
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Where

1 site
Eye and ENT hospital of Fudan University
Shanghai, China
🤝 Taking part is your choice, and you can leave at any time. Only the trial team can confirm you are eligible — always decide together with your own doctor.
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