Femtosecond Laser for Cataract Surgery

January 31, 2025 updated by: Abbott Medical Optics

A Prospective, Randomized Study of Cataract Surgery With the Assistance of the OptiMedica Femtosecond Laser System Compared to Standard Surgical Procedure of Continuous Curvilinear Capsulorhexis and Ultrasonic Phacoemulsification

The objective of this study is to evaluate the safety and efficacy the OptiMedica Femtosecond Laser System, also known as the Catalys™ Precision Laser System, to perform two surgical maneuvers used in the treatment of subjects with cataracts. Efficacy will be evaluated by comparisons to the standard surgical procedure of continuous curvilinear capsulorhexis (CCC) and ultrasonic phacoemulsification.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Terminated

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
17

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

50 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Able and willing to comply with the treatment/follow-up schedule and requirements
  • Able to understand and provide written Informed Consent
  • ETDRS visual acuity equal to or worse than 20/32 (best corrected)
  • Age between 50 and 80 years old
  • Pupil dilates to at least 6 mm
  • Subject able to fixate
  • Grade 1-4 nuclear sclerotic cataract (LOCS III)
  • Axial length between 22 and 26 mm

Exclusion Criteria:

  • Pregnant, intending to become pregnant during course of the study, less than 3 months postpartum or less than 6 weeks after completion of breastfeeding
  • Participation in a study of another device or drug within 3 months prior to study enrollment or during this study, and as per the Investigator's careful discretion, as long as not contradictory to any of the above criteria
  • Any condition which, in the Investigator's opinion, would make it unsafe (for the subject or for the study personnel) to treat the subject as part of this research study or for which cataract surgery is contraindicated
  • Anterior chamber depth (anterior corneal surface to anterior capsule margin) less than 2.5 mm via IOL Master (Zeiss).
  • History of prior ocular surgery
  • History of ocular trauma
  • Co-existing ocular disease affecting vision
  • History or current use of alpha-1 antagonist medication (e.g., Flomax)
  • Known sensitivity to planned concomitant medications

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: U/S Surgery and CCC
Ultrasound (U/S) cataract surgery and continuous curvilinear capsulorhexis (CCC).
Procedure: U/S Surgery and CCC
Subjects will receive the standard of care for U/S cataract surgery and CCC to facilitate removal of the crystalline lens.
Other Names:
  • Standard of care for U/S and CCC was required.
Experimental: FS Laser Surgery
For femtosecond laser-assisted cataract surgery (FS Laser Surgery), subjects will receive capsulotomy, lens segmentation and, at investigator discretion, lens softening using the femtosecond laser device.
Device: FS Laser Surgery
The Catalys System is an ophthalmic surgical laser system intended for use in cataract surgery.
Other Names:
  • OptiMedica Catalys™ Precision Laser System (Catalys System)

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Capsulotomy Dimension
Time Frame: Day of Surgery
Capsulotomy size will be measured during surgery for both the experimental and control groups.
Day of Surgery

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Cumulative Dissipated Energy (CDE)
Time Frame: Day of Surgery
CDE (the amount of ultrasound energy delivered during phacoemulsification of the crystalline lens) used will be measured during surgery.
Day of Surgery

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Abbott Medical Optics

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Juan F. Batlle, MD, Laser Center
  • Study Director: William W. Culbertson, MD, Bascom Palmer Eye Institute

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 1, 2011

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2011

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 1, 2014

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 8, 2014

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 8, 2014

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 10, 2014

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 31, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • OMC-C-3.0

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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