نتایج جستجو برای: mixed astigmatism lasik

تعداد نتایج: 224972  

2009
Alberto Villarrubia Javier Gersol

Methods: This was a prospective, nonrandomized, observational case series comparing outcomes of 239 eyes that underwent LASIK for myopia and myopic astigmatism with either wavefront or conventional ablation using the LADARVISION excimer laser. Manifest refractive sphere ranged from 0.50 D to 28.00 D with astigmatism up to 24.00 D. Eighty-nine eyes underwent conventional LASIK (conventional grou...

2016
Alper Ağca Ahmet Demirok Yusuf Yıldırım Ali Demircan Dilek Yaşa Ceren Yeşilkaya İrfan Perente Muhittin Taşkapılı

Small-incision lenticule extraction (SMILE) is an alternative to laser-assisted in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK) for the correction of myopia and myopic astigmatism. SMILE can be performed for the treatment of myopia ≤-12 D and astigmatism ≤5 D. The technology is currently only available in the VisuMax femtosecond laser platform. It offers several advantages ...

Journal: :The British journal of ophthalmology 2001
T M Baek K H Lee A Tomidokoro T Oshika

AIMS To quantitatively evaluate the changes in corneal irregular astigmatism after laser in situ keratomileusis (LASIK) in relation to the amount of laser ablation. METHODS In 189 eyes of 116 patients undergoing LASIK for myopia, corneal topography was obtained before and 1 month after surgery. Using Fourier harmonic analysis of the topography data, corneal irregular astigmatism (asymmetry an...

Journal: :Ophthalmology 2003
Peter S Hersh Kristen L Fry Douglas S Bishop

PURPOSE To determine the incidence and risk factors for laser in situ keratomileusis (LASIK) retreatment and to present a novel retreatment technique. DESIGN Retrospective noncomparative consecutive case series. PARTICIPANTS Two thousand four hundred eighty-five eyes (1306 patients) underwent LASIK surgery for myopia, hyperopia, or astigmatism using either the Summit Apex Plus or the Alcon ...

2011
Pinakin Gunvant Anna Ablamowicz Subba Gollamudi

PURPOSE To investigate if the parameters measured routinely prior to cataract surgery with multifocal intraocular lens (IOL) implantation can predict the necessity of additional laser in situ keratomileusis (LASIK) to improve visual outcome. METHODS Records of patients undergoing cataract surgery between January 2008 and December 2009 were reviewed. Individuals satisfied with visual outcome o...

2015
Andreas Frings Gisbert Richard Johannes Steinberg Christos Skevas Vasyl Druchkiv Toam Katz Stephan J. Linke

PURPOSE In eyes with a preoperative plano refractive cylinder, it would appear that there is no rationale for astigmatic treatment. The aim of this retrospective, cross-sectional data analysis was to determine the amount of topographic astigmatism in refractive plano eyes that results in reduced efficacy after myopic laser in situ keratomileusis (LASIK). METHODS This study included 267 eyes f...

Journal: :International ophthalmology clinics 2012
Zale D Mednick Guillermo Rocha

The mainstay of treatment for those with hyperopic astigmatism who wish to bypass the need for glasses or contacts has traditionally been laser treatment. Both hyperopic laser in situ keratomileusis (LASIK) and photorefractive keratotomy (PRK) have been used to correct hyperopic astigmatism. Although LASIK can provide promising results for a portion of patients with hyperopic eyes, it becomes l...

Journal: :journal of current ophthalmology 0
امیرهوشنگ بهشت نژاد amirhushang beheshtnejad علیرضا یزدانی ابیانه alireza yazdani-abyaneh حسن هاشمی hassan hashemi محمود جباروند mahmoud jabbarvand علیرضا فهیم alireza fahim مسعود اقصایی فرد masoud aghsaei fard

purpose : to investigate the efficacy of intacs implantation in post-lasik corneal ectasia (ple) methods : in this retrospective study, 17 eyes of 12 patients with ple, that had been implanted intacs, were evaluated. these parameters were assessed: uncorrected visual acuity (ucva), best spectacle corrected visual acuity (bscva), manifest refractive spherical equivalent (mrse), refractive cylind...

Journal: :Journal of refractive surgery 2006
A John Kanellopoulos Joseph Conway Lawrence H Pe

PURPOSE To evaluate the safety and efficacy of the ALLEGRETTO WAVE excimer laser system (WaveLight Laser Technologie AG, Erlangen, Germany) in LASIK for hyperopia and hyperopic astigmatism. METHODS One hundred twenty consecutive LASIK cases for hyperopia with or without astigmatism treated with the ALLEGRETTO WAVE excimer laser were prospectively evaluated up to 12 months postoperatively. Pat...

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