Analysis of I-Trace High Order Aberrations Induced by Wavefront Optimized Ablation Profiles
- Conditions
- Myopia
- Interventions
- Device: LASIK
- Registration Number
- NCT04452448
- Lead Sponsor
- Alexandria University
- Brief Summary
This work aims at the analysis of ocular aberrations induced by wave front optimized ablation profiles WFO using I-Trace aberrometer (Ray -Tracing)
- Detailed Description
The iTrace (Tracey Technologies, Houston, Tx) is uniquely designed to combine Placido corneal topography with a ray tracing aberrometer to measure quality of vision in a patient. This work aims at the analysis of ocular aberrations induced by wave front optimized ablation profiles WFO using I-Trace aberrometer (Ray -Tracing)
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 10
- Myopia up to -8.0 D and astigmatism up to -2.0D.
- Cases above 18 years of age with a stable refraction for at least one year.
- Keratoconus.
- Patients with collagen diseases.
- Previous LASIK or any other refractive surgery.
- Severe dry eye syndrome.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Arm && Interventions
Group Intervention Description Laser in situ keratomileusis LASIK A prospective clinical study including 20 eyes of 10 cases undergoing laser in situ keratomileusis (LASIK)
- Primary Outcome Measures
Name Time Method Visual acuity 3 months Unaided as well as best corrected visual acuity
Manifest refraction 3 months Manifest refraction
Evaluation of ocular aberrations 3 months 3. Evaluation of ocular aberrations done using iTrace Visual Functional Analyzer (ray tracing technology) to quantify changes in total higher order aberrations, coma, spherical aberrations, secondary astigmatism and trefoil after LASIK surgery
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Alexandria Faculty of Medicine
🇪🇬Alexandria, Egypt