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LASIK Using the Alcon Allegretto Wavefront-Guided Excimer Laser vs AMO Visx Wavefront-Guided Excimer Laser
Not Recruiting
Trial ID: NCT01454843
Purpose
The purpose of the study is to compare the results of LASIK surgery when using Alcon
Allegretto wavefront-guided excimer laser system compared to AMO Visx Custom wavefront-guided
excimer laser system in patients with nearsightedness with and without astigmatism.
Official Title
A Prospective Eye to Eye Comparison of LASIK Using the Alcon Allegretto Wavefront-Guided Excimer Laser Versus AMO Visx Wavefront-Guided Excimer Laser
Stanford Investigator(s)
Edward Manche, MD
Professor of Ophthalmology
Eligibility
Inclusion Criteria:
- Subjects age 21 and older with healthy eyes.
- Nearsightedness between -0.50 diopters and -7.00 diopters with or without astigmatism
of up to 3.50 diopters.
Exclusion Criteria:
- Subjects under the age of 21.
- Patients with excessively thin corneas.
- Patients with topographic evidence of keratoconus.
- Patients with ectatic eye disorders.
- Patients with autoimmune diseases.
- Patients who are pregnant or nursing.
- Patients must have similar levels of nearsightedness with or without astigmatism in
each eye.
- They can not be more than 1.5 diopters of difference between eyes.
- Patients must have similar levels of astigmatism in each eye.
- They can not have more than 1.5 diopters of difference in nearsightedness or
astigmatism between their two eyes.
Intervention(s):
procedure: Wavefront-guided LASIK - Allegretto
procedure: Wavefront-guided LASIK - AMO
Not Recruiting
Contact Information
Stanford University
School of Medicine
300 Pasteur Drive
Stanford,
CA
94305