Capsular Tension Ring With Hydeophilic Intraocular Lesnes to Decrease Posterior Capsule Opacification Versus Hydrophobic Ones

Not Applicable

Completed

• Conditions: Intraocular Lens Complication

• Registration Number: NCT06974578
• Lead Sponsor: Benha University

Brief Summary

evaluate the clinical outcomes of routine CTR insertion in conjunction with hydrophilic versus hydrophobic IOLs following phacoemulsification.

Detailed Description

Phacoemulsification with intraocular lens (IOL) implantation is the standard surgical approach for cataract extraction. The choice between hydrophilic and hydrophobic IOLs has been debated, with studies suggesting differences in posterior capsule opacification (PCO) rates and capsular bag stability. Capsular tension rings (CTRs) are devices designed to stabilize the capsular bag, particularly in cases with zonular weakness. While CTRs are beneficial in complex cases, their routine use remains controversial. Understanding the interaction between CTRs and IOL materials could inform surgical practices and improve patient outcomes

Study Timeline

• Study Start: 2024-02-08
• Primary Completion: 2024-09-01
• Study Completion: 2024-09-01
• Status Verified: 2025-05
• Study First Submitted: 2025-05-08
• Study First Submitted QC: 2025-05-08
• Last Update Submitted: 2025-05-08
• Study First Posted: 2025-05-16
• Last Update Posted: 2025-05-16

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 40

Inclusion Criteria

• • Adults aged 40-80 years.

  • Visually significant cataract (≥3+ on Lens Opacities Classification System III "LOCSIII").
  • Clear cornea.

Exclusion Criteria

• • Previous ocular surgery.

  • Zonular instability requiring CTR insertion beyond routine practice.
  • Complicated cataract cases (e.g., traumatic cataract).
  • Active intraocular inflammation or infection.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Change in BCVA (LogMAR)	at 1, 3, and 6 months postoperatively.	The formula: logMAR score (0.1 NL + 0.02 nl) where NL = number of lines completely read and nl = number of additional letters read ap- plies. For this method, the higher the logMAR VA score, the better the visual acuity.
Refractive error measurements (spherical equivalent)	at 1, 3, and 6 months postoperatively.	SE was calculated as the spherical power of the refractive error plus one-half of the cylinder power. Hyperopia was defined as a spherical equivalent (SE) values of ≥ + 1.00 diopter (D) and emmetropia as a SE ranging between 0.99 and - 0.49 D. Myopia was defined as a SE refraction of ≤ -0.50 D.

Trial Locations

Locations (1)

Al-Azhar Faculty of Medicine; 🇪🇬 Cairo, Egypt