Steven C. Schallhorn

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PURPOSE To describe the factors that influence the measured intraocular pressure (IOP) change and to develop a predictive model after myopic and hyperopic LASIK and photorefractive keratectomy (PRK) in a large population. DESIGN Retrospective, observational case series. PARTICIPANTS Patients undergoing primary PRK or LASIK with a refractive target of(More)
OBJECTIVE To describe wavefront-guided (WFG) LASIK for the primary treatment of low to moderate levels of myopia and astigmatism and to examine the evidence on the safety and effectiveness of the procedure in comparison with conventional LASIK. METHODS Literature searches conducted in 2004, 2005, 2006, and 2007 retrieved 209 unique references from the(More)
PURPOSE To evaluate factors related to the quality of vision after LASIK. DESIGN Survey study. PARTICIPANTS One hundred consecutive patients. INTERVENTION LASIK with a 6.0-mm elliptical ablation pattern without transition zone to treat mild to moderate myopia or astigmatism (preoperative manifest spherical equivalent [MSE], -4.79 +/- 1.33 diopters(More)
OBJECTIVE To review the published literature to assess the safety, efficacy, and predictability of femtosecond lasers for the creation of corneal flaps for LASIK; to assess the reported outcomes of LASIK when femtosecond lasers are used to create corneal flaps; and to compare the differences in outcomes between femtosecond lasers and mechanical(More)
OBJECTIVE To review the published literature for evaluation of the safety and outcomes of phakic intraocular lens (pIOL) implantation for the correction of myopia and myopic astigmatism. METHODS Literature searches of the PubMed and Cochrane Library databases were conducted on October 7, 2007, and July 14, 2008. The PubMed search was limited to the(More)
PURPOSE To assess the efficacy of the Toric Implantable Collamer Lens (ICL) to treat moderate to high myopic astigmatism. DESIGN Prospective nonrandomized clinical trial. PARTICIPANTS Two hundred ten eyes of 124 patients with between 2.38 and 19.5 diopters (D) of myopia (spherical equivalent [SE]) and 1 to 4 D of astigmatism participating in the United(More)
PURPOSE To compare the Visian Toric Implantable Collamer Lens (TICL), a toric phakic intraocular lens (IOL), and photorefractive keratectomy (PRK) in the correction of moderate to high myopic astigmatism. METHODS This prospective, randomized study consisted of 43 eyes implanted with the TICL (20 bilateral cases) and 45 eyes receiving PRK with mitomycin C(More)
PURPOSE To review the incidence, culture results, clinical course, management, and visual outcomes of infectious keratitis after photorefractive keratectomy (PRK) at 6 Army and Navy refractive surgery centers. DESIGN Retrospective study. PARTICIPANTS Twelve thousand six hundred sixty-eight Navy and Army sailors and service members. METHODS Army and(More)
PURPOSE To compare tropicamide 1%, a shorter-acting cycloplegic agent, with cyclopentolate 1% for cycloplegic refractions in adult refractive surgery patients. SETTING Navy Refractive Surgery Center, Ophthalmology, Naval Medical Center, San Diego, California. METHODS The study was prospective, single center, with randomized sequencing of cycloplegic(More)
PURPOSE To compare the efficacy of 2 types of bandage contact lenses (BCLs) after photorefractive keratectomy (PRK). SETTING Navy Refractive Surgery Center, Naval Medical Center San Diego, San Diego, California, USA. METHODS In this prospective study, 100 patients received PRK in both eyes. Each patient received a BCL composed of etafilcon A (Acuvue(More)