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Comparison of Femtosecond Laser Assisted Cataract Surgery to Conventional Phacoemulsification Cataract Surgery

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT02096627
Recruitment Status : Completed
First Posted : March 26, 2014
Last Update Posted : November 16, 2018
Information provided by (Responsible Party):
Johns Hopkins University

Brief Summary:
In this project, the investigators aim to compare the safety, efficacy, and predictability outcomes of conventional CEIOL surgery to Femtosecond-laser-assisted CEIOL (FLACS) in an effort to improve cataract surgery outcomes. The investigators hypothesis is that FLACS may lead to preservation of endothelial cells compared to conventional CE IOL.

Condition or disease

Detailed Description:
This study will only include patients who are eligible to undergo cataract surgery. All patients will receive treatment that is FDA approved for cataract surgery. Because all study participants will have been scheduled for elective cataract extraction regardless of their participation in this study, there will be little or no additional surgical risk associated with participation. A total of 720 patients are expected to be enrolled in the study during a period of 2 years. The investigators will recruit patients with bilateral operable cataracts. One eye will undergo cataract surgery using conventional cataract extraction technique including phacoemulsification whereas the second eye will undergo FLACS. No significant increased risk to the patient is expected in either arm of the study compared to routine cataract surgery. The patients will be examined as per previous post-operative cataract surgery guidelines on POD1, POW1, POM1, POM3, POM6, POY1 and POY2. The only treatment difference will take place at the time of the cataract surgery. Post-operatively, endothelial cell count will be obtained by the no-touch technology of specular microscopy at baseline as well as three months after surgery. If the study ends prematurely, the investigators do not anticipate any significant change in the care of the patient.

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Study Type : Observational
Actual Enrollment : 154 participants
Observational Model: Case-Control
Time Perspective: Prospective
Official Title: Comparison of Femtosecond Laser Assisted Cataract Surgery to Conventional Phacoemulsification Cataract Surgery on Corneal Endothelial Cell Loss
Study Start Date : May 2014
Actual Primary Completion Date : November 2018
Actual Study Completion Date : November 2018

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Cataract

Patients who undergo routine cataract surgery using conventional phacoemulsification technique
Patients who undergo femtosecond laser assisted cataract surgery

Primary Outcome Measures :
  1. endothelial cell density three months after conventional CEIOL or FLACS compared to baseline [ Time Frame: up to 2 years ]
    endothelial cell density will be compared at baseline and three months after a patient undergoes FLACS or Conventional CE IOL to see which technique causes less endothelial cell loss.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 90 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Patients who present to our center with visually significant cataract and who may benefit from cataract surgery

Inclusion Criteria:

  1. Patients older than 18 years of age
  2. Ability to understand and sign an informed consent
  3. Visually significant cataract eligible to undergo cataract extraction by phacoemulsification with primary intraocular lens implantation in at least 1 eye
  4. Ability and commitment to follow up for 18 months after surgery
  5. No other ocular pathology and no previous/concurrent surgery

Exclusion Criteria:

  1. Any other ocular pathology that may affect best-corrected visual acuity
  2. Previous or concurrent ocular surgery
  3. Subjects who are pregnant, lactating, or planning to be pregnant during the course of the study.
  4. Patients with keratoconus or keratectasia
  5. Patients who are blind on one eye

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT02096627

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United States, Maryland
Johns Hopkins University
Baltimore, Maryland, United States, 21044
Sponsors and Collaborators
Johns Hopkins University
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Principal Investigator: yassine daoud, md Johns Hopkins University
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Responsible Party: Johns Hopkins University Identifier: NCT02096627    
Other Study ID Numbers: NA_00089916
First Posted: March 26, 2014    Key Record Dates
Last Update Posted: November 16, 2018
Last Verified: November 2018
Keywords provided by Johns Hopkins University:
Cataract, femtosecond laser, FLACS
Additional relevant MeSH terms:
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Lens Diseases
Eye Diseases