MyopiaiLASIKNCT00765960
Evaluation of Outcomes Using the Amo Advanced CustomVue Ilasik Procedure
An observational study of Myopia and Hyperopia, run by Medical University of South Carolina at 1 site in United States.
Trial summary
The purpose of this study is to assess the efficacy, predictability and safety of the Advanced CustomVue™ iLASIK procedure (WaveScan WaveFront® System, STAR S4 IR™ Excimer Laser System and IntraLase™ FS System). Read more about this study
- Who is it for?
- Ages 21 years and olderHealthy volunteers can take part
- How many people
- 0 participants
- Where
- 1 siteUnited States
- Study dates
- Sep 2008to Oct 2009
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 21 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: Approximately 20 patients (40 eyes) of both sexes and any race undergoing bilateral wavefront-guided LASIK will be included.
Inclusion Criteria:Subjects MUST fulfill the following conditions to qualify for enrollment into the trial Both eyes must have a manifest refractive error from -0.50 D to -6.00 D, a cylinder component up to -3.00 D, and a maximum manifest spherical equivalent of -6.00 D.
21 years of age or older at the time of the pre-operative examination. Both eyes must have a BSCVA of 20/20 or better; Both eyes must have a minimum pupil size of at least 6.0mm in dim illumination on wavescan.
Both eyes must demonstrate refractive stability confirmed by clinical records or previous glasses. Refractive stability shall be documented by a change of less than or equal to 0.50 diopter (sphere and cylinder) at an exam at least 12 months prior to the baseline examination. The astigmatic axis must also be within 15 degrees for eyes with cylinder greater than 0.50 D.
Willing and able to comply with scheduled visits and other study procedures.
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Exclusion Criteria:Subjects with ANY of the following conditions on the eligibility exam may NOT be enrolled into the trial.
Subjects who use concurrent topical or systemic medications that may impair healing, including but not limited to: antimetabolites, isotretinoin (Accutane®) within 6 months of treatment, and amiodarone hydrochloride (Cordarone®) within 12 months of treatment. Also, the use of topical or systemic corticosteroids, whether chronic or acute Subjects with a history of any of the following medical conditions, or any other condition that could affect wound healing: uncontrolled diabetes, collagen vascular disease, autoimmune disease, immunodeficiency diseases, ocular herpes zoster or simplex, endocrine disorders (including, but not limited to unstable thyroid disorders and diabetes), lupus, and rheumatoid arthritis.
Subject must not have a history of prior intraocular or corneal surgery (including cataract extraction), active ophthalmic disease or abnormality (including, but not limited to, blepharitis, recurrent corneal erosion, dry eye syndrome, neovascularization > 1mm from limbus), clinically significant lens opacity, clinical evidence of trauma (including scarring), or with evidence of glaucoma or propensity for narrow angle glaucoma in either eye.
The subject must not have any evidence of keratoconus, corneal irregularity, or abnormal videokeratography in either eye.
Subjects with known sensitivity or inappropriate responsiveness to any of the medications used in the post-operative course.
Patients who do not achieve Iris registration at the time of their wavescan. Patients seeking monovision Any clinically significant, serious or severe medical or psychiatric condition that may increase the risk associated with study participation or may interfere with the interpretation of study results.
Participation in (or current participation) any investigational drug or device trial within the previous 30 days prior to the start date of this trial.
The principal investigator reserves the right to declare a patient ineligible or non-evaluable based on medical evidence that indicates the patient is unsuitable for the trial.
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Trial locations and contacts
1 site in 1 country.
United States1 site
Magill Laser Center, Medical University of South Carolina
Charleston, South Carolina, 29425
About this study
The purpose of this study is to assess the efficacy, predictability and safety of the Advanced CustomVue™ iLASIK procedure (WaveScan WaveFront® System, STAR S4 IR™ Excimer Laser System and IntraLase™ FS System).
Read the detailed description
Laser in situ keratomileusis (LASIK) surgery has been performed worldwide since 1990. More recently, customized corneal ablation utilizing wavefront-sensing technology to determine the optical aberration of a patient's cornea has optimized LASIK surgery results. Prior to the introduction of wavefront-guided laser vision correction, the variables used for correcting refractive errors were limited to sphere and cylinder. With the introduction of wavefront laser vision correction surgeons are now able to provide individualized laser-induced corneal tissue resection based not only on sphere and cylinder measurements, but also on an attempt to treat 3rd through 6th higher-order aberrations (HOAs) utilizing Zernike polynomial wavefront reconstructions and Fourier transformation.
Advanced Medical Optics, Inc. (AMO) has recently introduced the Advanced CustomVue™ iLASIK procedure which utilizes the WaveScan WaveFront® System, a STAR S4 IR™ Excimer Laser System and IntraLase™ FS System technology to provide the broadest range of wavefront-guided FDA approved usages and an unprecedented level of precision and accuracy for patients undergoing LASIK surgery. The procedure leverages Iris Registration, Fourier algorithms, VSS™ and VRR™ technologies and 3D ActiveTrak™ to ensure precise corneal ablation.1, 2
- Keywords
- Vision
- Medical subject headings
- Myopia, Hyperopia
What is being measured
The primary outcome is the main question the study is designed to answer.
Comparisons and statistical analysis will be done to determine if any statistical differences exist between preoperative and postoperative visits, and assess the efficacy, predictability and safety of the Advanced CustomVue™ iLASIK procedure.
Measured: End of Study
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted3 Oct 2008 (estimated)
- Study startSep 2008
- Primary completionOct 2008
- Study completionOct 2009
Why it stopped: Prinicipal Investigator separating employment from University.
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for MyopiaStudies of the same condition, open and under way.
- More trials run by Medical University of South CarolinaThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Other
- Time perspective
- Retrospective
- Enrolment
- 0 participants (actual)
Sponsor and investigators
- Lead sponsor
- Medical University of South Carolina
- Sponsor type
- University, hospital or other
- Investigators
- Kerry D Solomon, MD, Principal investigator, Professor of Ophthalmology
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00765960
- Sponsor's protocol ID
- MRC 08-002
- Other IDs
- 18294
- Acronym
- iLASIK
- Status last verified
- Oct 2010
- First submitted
- 1 Oct 2008
- Last updated
- 6 Jun 2018
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 6 Jun 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of Outcomes Using the Amo Advanced CustomVue Ilasik Procedure
- ClinicalTrials.gov ID
- NCT00765960
- Acronym / sponsor ID
- iLASIK / MRC 08-002
- Keywords
- Vision
- Study type
- Observational
- Recruitment status
- WithdrawnReason stopped: Prinicipal Investigator separating employment from University.
- Enrolment
- 0 participants (actual)
- Lead sponsor
- Medical University of South CarolinaUniversity, hospital or other
- Study start
- Sep 2008
- Primary completion
- Oct 2008 (actual)
- Study completion
- Oct 2009 (actual)
- First posted
- 3 Oct 2008 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to assess the efficacy, predictability and safety of the Advanced CustomVue™ iLASIK procedure (WaveScan WaveFront® System, STAR S4 IR™ Excimer Laser System and IntraLase™ FS System).
Detailed description
Laser in situ keratomileusis (LASIK) surgery has been performed worldwide since 1990. More recently, customized corneal ablation utilizing wavefront-sensing technology to determine the optical aberration of a patient's cornea has optimized LASIK surgery results. Prior to the introduction of wavefront-guided laser vision correction, the variables used for correcting refractive errors were limited to sphere and cylinder. With the introduction of wavefront laser vision correction surgeons are now able to provide individualized laser-induced corneal tissue resection based not only on sphere and cylinder measurements, but also on an attempt to treat 3rd through 6th higher-order aberrations (HOAs) utilizing Zernike polynomial wavefront reconstructions and Fourier transformation.
Advanced Medical Optics, Inc. (AMO) has recently introduced the Advanced CustomVue™ iLASIK procedure which utilizes the WaveScan WaveFront® System, a STAR S4 IR™ Excimer Laser System and IntraLase™ FS System technology to provide the broadest range of wavefront-guided FDA approved usages and an unprecedented level of precision and accuracy for patients undergoing LASIK surgery. The procedure leverages Iris Registration, Fourier algorithms, VSS™ and VRR™ technologies and 3D ActiveTrak™ to ensure precise corneal ablation.1, 2
Study design
- Observational model
- Other
- Time perspective
- Retrospective
Who may qualify
- Ages
- 21 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- Approximately 20 patients (40 eyes) of both sexes and any race undergoing bilateral wavefront-guided LASIK will be included.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Comparisons and statistical analysis will be done to determine if any statistical differences exist between preoperative and postoperative visits, and assess the efficacy, predictability and safety of the Advanced CustomVue™ iLASIK procedure.
Time frame: End of Study
Results and safety
The study was withdrawn before enrolling participants, so there are no results.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Jun 2018.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Kerry D Solomon, MD principal investigator
Professor of Ophthalmology
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Myopia and Hyperopia, run by Medical University of South Carolina at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: withdrawn, as of the sponsor's last update on 6 Jun 2018. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study was withdrawn before enrolling participants, so there are no results.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Comparisons and statistical analysis will be done to determine if any statistical differences exist between preoperative and postoperative visits, and assess the efficacy, predictability and safety of the Advanced CustomVue™ iLASIK procedure. (time frame: End of Study). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Jun 2018.