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
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