- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01706237
Visual Outcomes And Contrast Sensitivity After Myopic Wavefront-Optimized Lasik With Nexisvision Shield Or Bandage Contact Lens
June 3, 2014 updated by: Durrie Vision
Evaluation Of Visual Outcomes And Contrast Sensitivity After Myopic Wavefront-Optimized Lasik With Nexisvision Shield Or Bandage Contact Lens
Evaluate visual outcomes and contrast sensitivity for subjects undergoing bilateral myopic LASIK with a Nexisvision Shield or bandage contact lens placed postoperatively.
Early speed of visual recovery results indicate that the visual recovery in the first 4 hours after the LASIK procedure show the most variability.
A patient's ability to drive after their LASIK procedure would potentially alleviate a challenge that patients often face in taking additional time off work or simply finding a ride to there LASIK procedure.
Study Overview
Detailed Description
Laser in situ keratomileusis (LASIK) surgery has been performed worldwide since 1990.
Historically, LASIK has been reported to decrease contrast sensitivity post operatively and patients have been advised to take the day off of work and potentially the day after LASIK.
More recently, utilizing advanced laser technology for optimized corneal ablation and creation of the flap has the potential for improved LASIK surgery results and improved recovery time.
Visual recovery and management of immediate post operative visual acuity is important for patient satisfaction.
Study Type
Interventional
Phase
- Phase 4
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
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
Yes
Genders Eligible for Study
All
Description
INCLUSION CRITERIA:
- Male or female in good general health, 18 years of age or older at the time of the pre-operative examination
- Patient must be able to read, comprehend and willing to give HIPPA and informed consent
- Patient is planning to undergo a bilateral LASIK procedure
- Both eyes must have a manifest refractive error from -1.00 D to -7.00 spherical equivalent with less than or equal to 3.00D of refractive astigmatism as expressed in spectacle minus cylinder form
- Both eyes must have a BSCVA of 20/20 or better
- Both eyes must demonstrate refractive stability confirmed by clinical records, previous glasses, or investigator's discretion.
- Patient must be willing to comply with study dosing and complete the entire course of the study.
EXCLUSION CRITERIA:
- A patient with evidence of keratoconus, corneal irregularity, or abnormal videokeratography in either eye
- A patient seeking monovision
- A patient with a known hypersensitivity to any of the components of the procedural or post-LASIK medications
- A patient requiring the use of any ocular drop(s) and/or medication(s) in either eye during the study period with the exception of ocular drops and/or medications provided by the investigator
- A patient having any surgical procedure within a week preceding the scheduled LASIK surgery
- A patient with any UNCONTROLLED systemic disease (i.e., a potential patient in whom therapy for a systemic disease is not yet stabilized )
- A patient with 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 evidence of glaucoma or propensity for narrow angle glaucoma in either eye
- A patient with a significant history or current evidence of a medical, psychological or other disorder that, in the investigator's opinion, may increase the risk associated with study participation or may interfere with the interpretation of study results
- A patient 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
- Current participation or participation within 30 days prior to the start of this study in a drug or other investigational research study.
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: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Shield
A shield (similar to a contact lens) is placed on the eye after myopic LASIK procedure.
|
A shield is placed on the eye after LASIK.
The shield is similar to a contact lens.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Visual Acuity over time
Time Frame: Immediate, 30 minutes, 1 hour, 2 hour, and 4 hours
|
Progress of the change in visual acuity will be measured at specific time intervals directly after LASIK surgery.
|
Immediate, 30 minutes, 1 hour, 2 hour, and 4 hours
|
Contrast Sensitivity
Time Frame: Immediate, 30 minutes, 1 hour, 2 hour, and 4 hours
|
Change in contrast sensitivity compared to baseline will be documented at specific time intervals beginning immediately after LASIK surgery.
|
Immediate, 30 minutes, 1 hour, 2 hour, and 4 hours
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Collaborators
Investigators
- Principal Investigator: Daniel S Durrie, MD, Durrie Vision
- Principal Investigator: Stephen G. Slade, MD, Slade & Baker Vision
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
May 1, 2012
Primary Completion (Actual)
June 1, 2014
Study Registration Dates
First Submitted
October 11, 2012
First Submitted That Met QC Criteria
October 12, 2012
First Posted (Estimate)
October 15, 2012
Study Record Updates
Last Update Posted (Estimate)
June 4, 2014
Last Update Submitted That Met QC Criteria
June 3, 2014
Last Verified
June 1, 2014
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- NVS-SOVR-001
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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