Subjects with myopia, hyperopia and astigmatism are being randomized to be treated in one eye with a wavefront-guided excimer laser and their fellow eye treated with a wavefront-optimized excimer laser.
Subjects with myopia, hyperopia and astigmatism are being randomized by ocular dominance to be treated with either PRK or LASIK. One eye will be treated with a wavefront-guided excimer laser and the fellow eye will be treated with a wavefront optimized excimer laser.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
137
Wavefront-guided versus wavefront-optimized LASIK or PRK.
Stanford University School of Medicine
Stanford, California, United States
Changes in best spectacle corrected visual acuity.
Time frame: One year
Changes in 25 and 5% low contrast visual acuity.
Time frame: One year
Improvement in uncorrected visual acuity
Time frame: One year
Changes in higher order aberrations.
Time frame: One year
Topographic changes.
Time frame: One year
Quality of vision changes.
Time frame: One year
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