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

Benha University40 enrolled

Overview

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

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 Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

OTHER

Masking

NONE

Enrollment

Conditions

Intraocular Lens Complication

Interventions

phacoemulsificationPROCEDURE

cataract extracton with phacoemulsification

CTRDEVICE

insertion of capsualr tension ring

hydrophilic IOLDEVICE

implantation of hydrophilic IOL

Hydrophobic IOL

Eligibility

Sex: ALLMin age: 40 YearsMax age: 80 Years

Medical Language ↔ Plain English

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.

Locations (1)

Al-Azhar Faculty of Medicine

Cairo, Egypt

Outcomes

Primary Outcomes

Change in BCVA (LogMAR)

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.

Time frame: at 1, 3, and 6 months postoperatively.

Refractive error measurements (spherical equivalent)

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.

Time frame: at 1, 3, and 6 months postoperatively.

Data from ClinicalTrials.gov

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