A Prospective Randomized Comparison of SMILE Surgery to Ray Tracing-Guided LASIK Surgery
Stanford University
Summary
Participants will undergo LASIK surgery in one eye using ray tracing guided technology in one eye and LASIK surgery in the other eye using wavefront guided technology. We are comparing outcomes between the two technologies as measured by self reported quality of vision and quality of life outcomes using validated questionnaires before and after surgery. We will also be comparing outcomes between the two technologies including measurement of low contrast visual acuity,and best spectacle corrected visual acuity.
Description
Sixty-two near-sighted study participants at Stanford are planned to undergo treatment in this clinical research trial. This comparison will be made between both eyes of the same study participant following LASIK and SMILE surgery. One eye will have ray tracing-guided LASIK and their fellow eye treated with SMILE surgery. Both ray tracing-guided LASIK surgery and SMILE surgery have been found to be safe, predictable and effective when used for laser vision correction procedures. Both ray tracing-guided LASIK surgery and SMILE surgery used in this study have been approved for laser vision corr…
Eligibility
- Age range
- 22–59 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: Subjects age 22 and older with healthy eyes. Nearsightedness between -1.00 diopters and -8.00 diopters. Subjects with less than or equal to 3.00 diopters of astigmatism. Exclusion Criteria: Subjects under the age of 22. Subjects with excessively thin corneas. Subjects with topographic evidence of keratoconus. Subjects with ectactic eye disorders. Subjects with autoimmune diseases. Subjects who are pregnant or nursing. Subjects must have similar levels of nearsightedness in each eye. They can not be more than 1.5 diopter of difference between eyes. Subjects with more th…
Interventions
- DeviceRay tracing guided LASIK surgery
LASIK
Location
- Byers Eye InstitutePalo Alto, California