A Three-Phase Contralateral Comparison of Ray-Tracing Guided LASIK Versus Three Other Refr
This purpose of this study is to compare a new form of LASIK called Ray Tracing Guided LASIK to 3 other forms of corneal refractive surgery: 1. KLEx (KeratoLenticule Extraction) using the Zeiss Visumax 800 Laser, 2. WFO LASIK (Wavefront Optimized LASIK) using the Alcon EX500 Laser, and 3. Topography Guided LASIK (Conto
| Condition(s) | Myopia, Astigmatism |
|---|---|
| Status | Recruiting |
| Phase | NA |
| Study type | Interventional |
| Summary | This purpose of this study is to compare a new form of LASIK called Ray Tracing Guided LASIK to 3 other forms of corneal refractive surgery: 1. KLEx (KeratoLenticule Extraction) using the Zeiss Visumax 800 Laser, 2. WFO LASIK (Wavefront Optimized LASIK) using the Alcon EX500 Laser, and 3. Topography Guided LASIK (Contoura LASIK) also using the Alcon EX500 Laser. |
| Who can participate | Inclusion Criteria: 1. Age 22-50 at the time of consent 2. Diagnosis of myopia or myopia with astigmatism with Preoperative manifest spherical equivalent refraction of ≥ -2.00 and ≤ -9.00 D (-2.00 D through -9.00 D) 3. Preop Spherical component of ≥ -2.00 and ≤ -8.00 D (-2.00 D through -8.00 D) 4. Refractive Cylinder of ≤ -3.00 D (0.00 through -3.00 D) 5. BCVA of 20/20 or better in each eye (83 or more letters on the ETDRS Chart) 6. Subjects must have a stable refraction which is defined as a change in spherical equivalent no greater than 0.50 D comparing the screening visit manifest refraction to a previous refraction, spectacle Rx, or contact lens Rx, 12 months or older. 7. Subjects who are contact lens wearers must discontinue the use of soft lenses (spherical or toric) for at least 5 d |
| Ages | 22 Years to 50 Years |
| Sex | All |
| Accepts healthy volunteers | Yes |
| Lead sponsor | Hoopes Vision |
| Locations | Draper, Utah, United States |
| Start date | 2025-09 |
| NCT ID | NCT07201298 |
| Official listing | https://clinicaltrials.gov/study/NCT07201298 |