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Impact of capsular tension ring on intraocular lens position in retinitis pigmentosa cataract patients

Effect of tension ring implantation on postoperative IOL position in retinitis pigmentosa patients with cataract: a single-center, randomized, self-controlled study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500107192
Enrollment
Unknown
Registered
2025-08-06
Start date
2025-08-10
Completion date
Unknown
Last updated
2025-08-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Retinitis pigmentosa, Cataract

Interventions

Experimental group:Phaco+IOL with CTR implantation
Control group:Phaco+IOL without CTR implantation

Sponsors

The Zhongshan Ophthalmic Center,Sun Yat-sen University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1.>= 18 years old; 2.Clinical diagnosis of retinitis pigmentosa (RP); 3.Bilateral cataract meeting the indications for intraocular lens (IOL) implantation; 4.Willingness to participate in the study and signed informed consent;

Exclusion criteria

Exclusion criteria: 1.History of intraocular surgery; 2.Severe zonular weakness (e.g., zonular dialysis >90°, lens subluxation/dislocation); 3.Other ocular comorbidity: such as pseudoexfoliation syndrome, high myopia, ocular trauma, corneal dystrophies, uveitis, glaucoma, etc. 4.Severe systemic diseases: such as severe hypertension, diabetes, heart disease, Alzheimer's, Parkinson, etc.

Design outcomes

Primary

MeasureTime frame
IOL dencentration;—

Secondary

MeasureTime frame
IOL tilt;Best Corrected Visual Acuity;Postoperative complications;IOL dencentration;—

Countries

China

Contacts

Public ContactTan Xuhua

The Zhongshan Ophthalmic Center,Sun Yat-sen University

tanxuhua6@mail.sysu.edu.cn+86 13926019722

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026