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https://www.readbyqxmd.com/read/27748658/intraocular-lens-calculations-after-laser-vision-correction
#1
Claudia E Perez-Straziota, J Bradley Randleman
PURPOSE OF REVIEW: This article describes different strategies for corneal measurements and/or intraocular lens (IOL) calculations and proposes a systematic approach for IOL selection in patients who have undergone laser corneal refractive surgery. RECENT FINDINGS: Corneal measurements and IOL calculations cannot be obtained accurately with the standard measuring technologies and formulas in patients with history of laser corneal refractive surgery; therefore a variety of methods and formulas, some of which required prerefractive surgery data, have been proposed to improve the accuracy of measurements and calculations...
January 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/27668958/june-consultation-3
#2
Claudia Perez-Straziota
No abstract text is available yet for this article.
June 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/26938338/femtosecond-assisted-lasik-complications-and-management
#3
Claudia Perez-Straziota, J Bradley Randleman
FS-assisted LASIK has become the preferred method for LASIK flap creation due to the precision, accuracy, and reproducibility of the flap creation. Thinner, planar flaps may help prevent cases of post-LASIK ectasia and may have a superior refractive outcome. However, FS flap creation has several unique complications that require early recognition and optimal timely management for the best visual outcomes.
2016: International Ophthalmology Clinics
https://www.readbyqxmd.com/read/25824260/comparison-of-central-and-peripheral-corneal-thickness-measurements-with-scanning-slit-scheimpflug-and-fourier-domain-ocular-coherence-tomography
#4
COMPARATIVE STUDY
J Bradley Randleman, Michael J Lynn, Claudia E Perez-Straziota, Heather M Weissman, Sang Woo Kim
PURPOSE: To compare central, regional and relational corneal thickness values obtained with multiple technologies in normal patients and to determine their equivalence and interchangeability. METHODS: Retrospective analysis of 100 eyes from 50 patients evaluated by ultrasound pachymetry (Pachette II), scanning-slit (Orbscan II), Scheimpflug (Pentacam HR) and spectral-domain ocular coherence tomography (OCT) (RTVue-100) obtained as average values (OCT-A) and point measurements (OCT-P)...
September 2015: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/24763478/epithelial-and-stromal-remodeling-after-corneal-collagen-cross-linking-evaluated-by-spectral-domain-oct
#5
RANDOMIZED CONTROLLED TRIAL
Karolinne Maia Rocha, Karoline Maia Rocha, Claudia E Perez-Straziota, R Doyle Stulting, J Bradley Randleman
PURPOSE: To evaluate changes in corneal epithelial and stromal thickness after corneal collagen cross-linking (CXL) in eyes with keratoconus and postoperative corneal ectasia using spectral-domain optical coherence tomography (SD-OCT). METHODS: Anterior segment SD-OCT (RTVue-100; Optovue, Inc., Fremont, CA) was used to compare regional corneal epithelial and stromal thickness in eyes with keratoconus and ectasia before CXL and 1 and 3 months after CXL. The anterior surface of the cornea, epithelium-Bowman's layer interface, and posterior reflective surface were used as anatomical landmarks to measure epithelial and stromal thickness, respectively...
February 2014: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/23446013/sd-oct-analysis-of-regional-epithelial-thickness-profiles-in-keratoconus-postoperative-corneal-ectasia-and-normal-eyes
#6
COMPARATIVE STUDY
Karolinne Maia Rocha, Claudia E Perez-Straziota, E Perez-Straziota, R Doyle Stulting, J Bradley Randleman
PURPOSE: To assess corneal microarchitecture and regional epithelial thickness profile in eyes with keratoconus, postoperative corneal ectasia (ectasia), and normal unoperated eyes (controls) using spectral-domain optical coherence tomography (SD-OCT). METHODS: Regional corneal epithelial thickness profiles were measured with anterior segment SD-OCT (Optovue RTVue-100, Optovue Inc., Fremont, CA). Epithelial thickness was assessed at 21 points, 0.5 mm apart, across the central 6-mm of the corneal apex in the horizontal and vertical meridians...
March 2013: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/22892824/variation-in-cataract-surgery-needs-in-latin-america
#7
Susan Lewallen, Claudia Perez-Straziota, Van Lansingh, Hans Limburg, Juan Carlos Silva
OBJECTIVE To estimate and compare the incidence of operable cataract and the desired cataract surgery rates required to eliminate cataract-related visual impairment in several Latin American settings. METHODS We obtained raw data on age-specific cataract prevalence from standardized population-based surveys. We used the data in a previously described model to estimate the incidence of operable cataract at 11 sites in 10 countries across Latin America. Age-specific incidence rates were then multiplied by corresponding population data to calculate the desired cataract surgery rates needed to eliminate cataract-related visual impairment in eyes in each country...
December 2012: Archives of Ophthalmology
https://www.readbyqxmd.com/read/20202542/visual-acuity-and-higher-order-aberrations-with-wavefront-guided-and-wavefront-optimized-laser-in-situ-keratomileusis
#8
COMPARATIVE STUDY
Claudia E Perez-Straziota, J Bradley Randleman, R Doyle Stulting
PURPOSE: To compare visual acuity and higher-order aberrations (HOAs) after wavefront-guided and wavefront-optimized laser in situ keratomileusis (LASIK). METHODS: This retrospective study comprised refraction-matched myopic eyes that had wavefront-guided (Visx Star S4 laser) or wavefront-optimized (WaveLight Allegretto Wave laser) LASIK targeted for emmetropia. Preoperative and postoperative manifest refraction spherical equivalent (MRSE), uncorrected (UDVA) and corrected (CDVA) distance visual acuities, and preoperative and postoperative HOAs were compared...
March 2010: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/19185240/higher-order-aberrations-after-wavefront-optimized-photorefractive-keratectomy-and-laser-in-situ-keratomileusis
#9
J Bradley Randleman, Claudia E Perez-Straziota, Michelle H Hu, Alfred J White, Evan S Loft, R Doyle Stulting
PURPOSE: To analyze the changes in higher-order aberrations (HOAs) that occur after wavefront-optimized photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK). SETTING: Emory Eye Center and Emory Vision, Atlanta, Georgia, USA. METHODS: This retrospective analysis comprised eyes that had PRK or LASIK from June 2004 through October 2005. Postoperative outcome measures included 3-month uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BSCVA), manifest refraction spherical equivalent (MRSE), changes in the root mean square (RMS) and grouped coefficient HOAs (microns) measured with a corneal analyzer, and subjective assessment of visual aberrations...
February 2009: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/19185239/objective-and-subjective-preoperative-refraction-techniques-for-wavefront-optimized-and-wavefront-guided-laser-in-situ-keratomileusis
#10
COMPARATIVE STUDY
Claudia E Perez-Straziota, J Bradley Randleman, R Doyle Stulting
PURPOSE: To determine which of 3 methods for measuring preoperative refractive error yields the best refractive outcomes after wavefront-guided (Visx Star S4) or wavefront-optimized (WaveLight Allegretto Wave) excimer laser in situ keratomileusis (LASIK). SETTING: Emory Eye Center and Emory Vision, Emory University, Atlanta, Georgia, USA. METHODS: This retrospective analysis of LASIK, performed from June to December 2007, analyzed sphere, cylinder, and spherical equivalent (SE) refractions generated from 3 methods (manifest refraction, aberrometer autorefraction [CustomVue WaveScan], corneal analyzer autorefraction [Nidek ARK-10000 OPD]), actual programmed treatment, and absolute deviation from ideal treatment (deviation) for each technique...
February 2009: Journal of Cataract and Refractive Surgery
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