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Ultrasound Biomicroscopic Analysis of Cionni Ring and In-the-bag IOL Implantation for Subluxated Lenses

I

Iladevi Cataract and IOL Research Center

Status

Completed

Conditions

Lens Subluxation

Treatments

Procedure: Lens Subluxation Surgery

Study type

Observational

Funder types

Other

Identifiers

NCT02790268
ICIRC-UBM

Details and patient eligibility

About

To report the Ultrasound Biomicroscopic findings following Cionni Ring bag fixation and in-the-bag IOL Implantation. To assess the relationship of the Bag and Cionni ring positioning in relation to surrounding ocular structures, in pediatric eyes

Full description

Cionni ring fixation of the capsular bag in conjunction with placement of an IOL has been found to be safe and effective compared with other current alternatives, even given the exceptionally high difficulty levels and complexity of these cases, in both adult and pediatric eyes. One limitation of techniques requiring trans-scleral suturing is that the suture cannot always be passed under adequate visualization, and, once the knot is secured, the exact position of the Cionni ring cannot always be accurately localized. Analysis of Cionni ring position with respect to the IOL and iris is important, as faulty placement of the ring or IOL can lead to complications which can threaten vision, especially in children with a high predisposition towards postoperative adverse events. Unfortunately, pupillary dilatation and slit-lamp examination may not always be adequate to assess the Cionni ring or the eyelet position, as it occupies the peripheral section of the capsular bag. UBM has been shown to be accurate and reproducible in examining the haptic position in relation to the sulcus and ciliary body, anterior chamber depth (ACD), vitreous incarceration, focal iris abnormalities, angle anatomy, and relationship of the iris to the lens (straight or tilted). This study aims to provide information on UBM findings following Cionni ring implantation in pediatric eyes for non-traumatic subluxation of the crystalline lens.

Enrollment

17 patients

Sex

All

Ages

3 to 18 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Children less than 18 years of age,
  • Non-traumatic Lens Subluxation undergoing Cionni RIng Bag fixation with In-the-Bag IOL implantation

Exclusion criteria

  • Traumatic Lens Subluxation
  • Intraoperative inability to fixate the Cionni Ring

Trial design

17 participants in 1 patient group

Lens Subluxation
Description:
Pediatric eyes with lens subluxation undergoing Cionni Ring Bag fixation with in-the-bag IOL Implantation
Treatment:
Procedure: Lens Subluxation Surgery

Trial contacts and locations

0

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Data sourced from clinicaltrials.gov

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