Femtosecond Laser Assisted Cataract Surgery in Intumescent Cataracts

Not Applicable

Completed

• Conditions: Intumescent Cataract
• Interventions: Device: Femtosecond laser; Procedure: Continuous Curvilinear Capsulorhexis (CCC)

• Registration Number: NCT02403206
• Lead Sponsor: Alcon, a Novartis Company

Brief Summary

The purpose of the study is to compare femtosecond laser-assisted capsulotomy to manual capsulorhexis in patients with intumescent cataracts. An intumescent cataract is defined as a cataract with a pressurized capsular bag.

Detailed Description

Not available

Study Timeline

• Study Start: 2015-03-26
• Study First Submitted: 2015-03-26
• Study First Submitted QC: 2015-03-26
• Study First Posted: 2015-03-31
• Primary Completion: 2016-07-12
• Study Completion: 2016-08-24
• Results First Submitted: 2017-05-30
• Status Verified: 2017-06
• Results First Submitted QC: 2017-06-26
• Results First Posted: 2017-07-25
• Last Update Submitted: 2018-05-31
• Last Update Posted: 2018-07-02

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 406

Inclusion Criteria

• Willing to undergo cataract surgery.
• Able to lie flat in a supine position.
• Able to understand and willing to sign the Informed Consent Form (ICF).
• Presenting with intumescent white cataract, with a liquid pressurized bag and a milky, liquid cortex.
• Other protocol-specified inclusion criteria may apply.

Exclusion Criteria

• Pregnant or lactating mothers.
• Corneal disease that precludes application of the cornea or transmission of laser light at 1030 nanometer (nm) wavelength.
• Corneal opacity that would interfere with the laser beam.
• Presence of blood or other material in the anterior chamber.
• Hypotony or presence of corneal implant.
• Poorly dilating pupils.
• Condition which would cause inadequate clearance between the intended capsulotomy depth and the endothelium.
• Residual, recurrent, active ocular or eye lid disease, including any corneal abnormality.
• Any contraindication to cataract surgery.
• Other protocol-specified exclusion criteria may apply.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Laser	Femtosecond laser	Femtosecond laser assisted capsulotomy and corneal incision performed during cataract surgery
Manual	Continuous Curvilinear Capsulorhexis (CCC)	Continuous curvilinear capsulorhexis performed during cataract surgery

Primary Outcome Measures

Name	Time	Method
Percentage of Capsular Tears (Anterior or Posterior) During Surgery	Day 0 (operative day)	A capsular tear is defined as any unintended tear on the anterior or posterior capsule and includes a radial tear that moves peripherally on the anterior capsule during capsulotomy and extends to form a posterior capsular tear during intumescent cataract surgery. An intumescent cataract is defined as a cataract with a pressurized capsular bag. A lower value indicates fewer capsular tears. Only one eye (study eye) contributed to the analysis.

Secondary Outcome Measures

Name	Time	Method
Operating Time in the Eye to Complete Entire Cataract Procedure	Day 0 (operative day)	Operating time in the eye was the time interval (in seconds) from the time the corneal incision was opened to the time the wound was closed. Only one eye (study eye) contributed to the analysis.