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

Assessment of the Outcomes of Routine Insertion of Capsular Tension Ring (CTR) With Hydrophilic Versus Hydrophobic Intraocular Lenses (IOLs) Alone After Phacoemulsification

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT06974578

Enrollment

Registered

2025-05-16

Start date

2024-02-08

Completion date

2024-09-01

Last updated

2025-05-16

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

Conditions

Intraocular Lens Complication

Keywords

CTR, IOLs, Phacoemulsification

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

Interventions

PROCEDUREphacoemulsification

cataract extracton with phacoemulsification

DEVICECTR

insertion of capsualr tension ring

DEVICEhydrophilic IOL

implantation of hydrophilic IOL

DEVICEHydrophobic IOL

insertion of hydrophobic IOL

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

OTHER

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

40 Years to 80 Years

Healthy volunteers

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.

Design outcomes

Primary

Measure	Time frame	Description
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.

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026