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Journal of Refractive Surgery

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https://www.readbyqxmd.com/read/27824385/corneal-scheimpflug-densitometry-following-photorefractive-keratectomy-in-myopic-eyes
#1
Marie Boulze-Pankert, Romuald Dariel, Louis Hoffart
PURPOSE: To evaluate the modification of corneal optical densitometry following photorefractive keratectomy (PRK) using Scheimpflug topography. METHODS: Corneal densitometry (0 to 100 grayscale units [GSU]), pachymetry, and keratometry were evaluated using a rotating Scheimpflug camera (Pentacam HR; Oculus Optikgeräte, GmbH, Wetzlar, Germany) at baseline and 1 and 3 months following PRK in myopic patients. Subjective refraction, uncorrected distance visual acuity, corrected distance visual acuity, and corneal haze (0 to 4 on common subjective scale) were evaluated preoperatively at baseline, 1 month, and 3 months...
November 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27824384/refractive-lenticule-transplantation-for-correction-of-iatrogenic-hyperopia-and-high-astigmatism-after-lasik
#2
Apostolos Lazaridis, Dan Z Reinstein, Timothy J Archer, Stephan Schulze, Walter Sekundo
PURPOSE: To design a technique for intrastromal transplantation of stromal lenticules with specific refractive power for correction of post-LASIK induced hyperopia and astigmatism. METHODS: A 28-year-old patient was referred for consultation after complicated LASIK for moderate myopia and astigmatism. The refractive error of the right eye was severely overcorrected due to data entry error. Post-LASIK refraction showed high astigmatism (right eye: +6.50 -9.00 @ 84°) and corrected distance visual acuity (CDVA) of 20/32...
November 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27824383/360-degree-iris-burns-following-conductive-keratoplasty
#3
Hanefi Çakir, Selim Genç, Emre Güler
PURPOSE: The authors report a case with multiple iris burns after conductive keratoplasty to correct hyperopia. METHODS: Case report. RESULTS: A 52-year-old woman with hyperopia had a previous conductive keratoplasty procedure and underwent a conductive keratoplasty re-treatment 6 months later. Postoperatively, she presented with 360-degree iris burns in both eyes that were correlated with the corneal conductive keratoplasty scars. In addition, specular microscopy revealed decreased endothelial cell density for both eyes...
November 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27824382/shifting-ectasia-interface-fluid-collection-after-small-incision-lenticule-extraction-smile
#4
Aashish K Bansal, Somasheila I Murthy, Syed M Maaz, Mahipal S Sachdev
PURPOSE: To report the first case and a new diagnostic sign of interface fluid collection following small incision lenticule extraction (SMILE). METHODS: Case report. RESULTS: A 20-year-old man underwent SMILE for correction of compound myopic astigmatism. Postoperative follow-up examination included vision testing, slit-lamp examination, intraocular pressure measurement, corneal topography, and optical coherence tomography (OCT). The patient presented postoperatively with decreased vision in his right eye...
November 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27824381/precision-of-high-resolution-oct-for-anterior-chamber-measurement-agreement-with-scheimpflug-imaging
#5
Alberto Domínguez-Vicent, Clizia Trussardi, Ulrika Wogatai, Robert Montés-Micó, Rune Brautaset
PURPOSE: To assess the precision of the new high-resolution optical coherence tomography (OCT) device to measure anterior segment distances and assess its agreement with a Scheimpflug camera. METHODS: Eighty patients with healthy and phakic eyes were included in this study, and only one eye per participant was analyzed. Each eye was measured three times with the Sirius topographer (Costruzione Strumenti Oftalmici, Florence, Italy) and the Cirrus HD-OCT 5000 (Carl Zeiss Meditec, Jena, Germany)...
November 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27824380/double-pass-retina-point-imaging-for-the-evaluation-of-optical-light-scatter-retinal-image-quality-and-staging-of-keratoconus
#6
Anthony P Leonard, Scott D Gardner, Karolinne M Rocha, Evan R Zeldin, David M Tremblay, George O Waring
PURPOSE: To measure retinal image quality using point spread function (PSF) analysis by double-pass retina point imaging in patients with keratoconus and to correlate visual quality with disease severity. METHODS: Patients diagnosed as having keratoconus by clinical examination, topography, and tomography and normal eyes were included in this study. A commercially available double-pass retina point imaging instrument (OQAS 108 II AcuTarget HD; Visiometrics S.L., Terrassa, Spain) was used to collect Objective Scatter Index (OSI) values in 21 keratoconic and 22 normal eyes...
November 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27824379/change-in-anterior-and-posterior-curvature-after-cataract-surgery
#7
Yang Jae Kim, Michael C Knorz, Gerd U Auffarth, Chul Young Choi
PURPOSE: To analyze the change in anterior and posterior corneal curvature after cataract surgery using a Placido-dual rotating Scheimpflug device. METHODS: In a prospective cross-sectional study, corneal curvature was measured using the Galilei G4 device (Ziemer Ophthalmic Systems, Port, Switzerland) preoperatively and 1 week and 1, 3, and 6 months after cataract surgery with a temporal limbal self-sealing 2.2-mm incision. The surgically induced astigmatism (SIA) was determined on the anterior and posterior surfaces...
November 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27824378/nd-yag-capsulotomy-rates-with-two-trifocal-intraocular-lenses
#8
Rafael Bilbao-Calabuig, Fernando Llovet-Osuna, Felix González-López, Jaime Beltrán
PURPOSE: To compare Nd:YAG capsulotomy rates following implantation of two diffractive trifocal intraocular lenses (IOLs). METHODS: This multi-center retrospective analysis included patients who underwent uncomplicated lens phacoemulsification and were implanted with a diffractive trifocal IOL: FineVision MicroF (PhysIOL, Liège, Belgium) or AT Lisa tri 839MP (Carl Zeiss Meditec, Jena, Germany). All surgeries were performed during the same period. The postoperative follow-up period was at least 1 year...
November 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27824377/visual-performance-in-the-long-term-with-secondary-add-on-versus-primary-capsular-bag-multifocal-intraocular-lenses
#9
Jens Schrecker, Achim Langenbucher
PURPOSE: To compare the long-term results of a secondary sulcus-placed, multifocal add-on intraocular lens (IOL) with those of a multifocal IOL implanted in the capsular bag. METHODS: In this prospective clinical trial, 30 pseudophakic eyes were treated with a multifocal add-on IOL and 30 cataractous eyes with a standard multifocal IOL. The main outcome measures comprised manifest refraction, visual acuity, defocus curves, and contrast sensitivity. Patients who had bilateral implantation of the same lens type were asked to complete a questionnaire...
November 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27824376/changes-to-corneal-aberrations-and-vision-after-monovision-in-patients-with-hyperopia-after-using-a-customized-aspheric-ablation-profile-to-increase-corneal-asphericity-q-factor
#10
Romain Courtin, Alain Saad, Alice Grise-Dulac, Emmanuel Guilbert, Damien Gatinel
PURPOSE: To evaluate the visual outcomes and fourth-order Zernike spherical aberrations induced with a customized change in corneal asphericity (ΔQ) correction of presbyopia combined with monovision for hyperopic patients. METHODS: Consecutive hyperopic patients who underwent presbyopic LASIK between September 2013 and July 2014 were included. For the non-dominant eyes, the aspheric ablation profile associated with a myopic refraction was planned using the Custom-Q nomogram (Alcon Laboratories, Inc...
November 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27824375/visual-outcomes-after-lasik-using-topography-guided-vs-wavefront-guided-customized-ablation-systems
#11
Ikuko Toda, Takeshi Ide, Teruki Fukumoto, Kazuo Tsubota
PURPOSE: To evaluate the visual performance of two customized ablation systems (wavefront-guided ablation and topography-guided ablation) in LASIK. METHODS: In this prospective, randomized clinical study, 68 eyes of 35 patients undergoing LASIK were enrolled. Patients were randomly assigned to wavefront-guided ablation using the iDesign aberrometer and STAR S4 IR Excimer Laser system (Abbott Medical Optics, Inc., Santa Ana, CA) (wavefront-guided group; 32 eyes of 16 patients; age: 29...
November 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27824374/in-memoriam-carlo-lovisolo
#12
EDITORIAL
Dan Z Reinstein, Jorge L Alió
No abstract text is available yet for this article.
November 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27722762/small-incision-lenticule-extraction-smile-as-re-treatment-for-a-thick-lasik-flap
#13
Sara Catalan-Lopez, Alba Mariña Portas-Ferradas, Luis Cadarso-Suarez, Adriana Rodriguez-Rodriguez
PURPOSE: To report the case of a residual refractive error after LASIK for moderate myopia successfully re-treated several years later using the small incision lenticule extraction (SMILE) technique. METHODS: Case report. RESULTS: Following LASIK, the patient showed a central flap thickness of 269 microns, whereas residual stromal bed thickness under the flap was 210 microns. SMILE was performed within the flap. In this less invasive surgical procedure, the residual stromal bed is not manipulated and ablation is conducted on the existing flap...
October 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27722761/a-pilot-study-of-smile-for-hyperopia-corneal-morphology-and-surface-characteristics-of-concave-lenticules-in-human-donor-eyes
#14
Jing Zhao, Huamao Miao, Tian Han, Yang Shen, Yu Zhao, Ling Sun, Xingtao Zhou
PURPOSE: To evaluate the corneal morphology and surface characteristics of concave lenticules after small incision lenticule extraction (SMILE) for hyperopia. METHODS: SMILE procedures were performed on two human autopsy corneas in vitro to correct +4.00 diopters of hyperopia. Slit-lamp microscopy and anterior optical coherence tomography (OCT) were performed after lenticule creation and extraction. The extracted lenticules and modified corneas were sent for transmission electron microscopy imaging...
October 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27722760/glistening-formation-on-a-single-piece-prehydrated-hydrophobic-acrylic-intraocular-lens-in-a-diabetic-patient
#15
Su-Yeon Kang, Youngsub Eom, Jay Won Rhim, Jong Suk Song, Hyo Myung Kim
PURPOSE: To report a case of intraocular lens (IOL) glistening after uneventful cataract surgery and in-the-bag implantation of an enVista MX60 IOL (Bausch & Lomb, Rochester, NY) in a patient with uncontrolled diabetes mellitus. METHODS: Case report. RESULTS: A 76-year-old woman with non-insulin-dependent diabetes mellitus underwent uncomplicated phacoemulsification with in-the-bag implantation of an enVista MX60 IOL. After 6 months, glistening formation within the IOL optic was observed...
October 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27722759/small-aperture-intraocular-lens-implantation-in-a-patient-with-an-irregular-cornea
#16
Tim Schultz, H Burkhard Dick
PURPOSE: To report a small-aperture intraocular lens (IOL) implantation after corneal trauma. METHODS: Case report. RESULTS: A 17-year-old boy with corneal scars, iris defect, and aphakia after perforating trauma in the right eye was scheduled for small-aperture IOL (IC-8; AcuFocus, Irvine, CA) implantation under general anesthesia. No intraoperative complications were observed. Six months after surgery, the uncorrected distance and near visual acuity increased significantly...
October 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27722758/comparison-of-the-effect-of-epithelial-removal-by-transepithelial-phototherapeutic-keratectomy-or-manual-debridement-on-cross-linking-procedures-for-progressive-keratoconus
#17
Ronald N Gaster, J Ben Margines, David N Gaster, Xiaohui Li, Yaron S Rabinowitz
PURPOSE: To compare the visual, refractive, keratometric, topographic, and pachymetric outcomes of corneal collagen cross-linking (CXL) for progressive keratoconus following epithelial removal by transepithelial phototherapeutic keratectomy (PTK) or manual debridement. METHODS: In this analysis, 339 eyes (78% male, 22% female) that had undergone CXL following manual epithelial debridement (n = 180) or ablation via PTK (n = 159) were evaluated preoperatively and at 6, 12, and 24 months postoperatively for uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), maximum corneal keratometry, pachymetry, and spherical equivalent...
October 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27722757/comparison-of-al-scan-and-iolmaster-500-partial-coherence-interferometry-optical-biometers
#18
Kenneth J Hoffer, Giacomo Savini
PURPOSE: To investigate agreement between the ocular biometry measurements provided by a newer optical biometer, the AL-Scan (Nidek Co, Ltd., Gamagori, Japan) and those provided by the IOLMaster 500 (Carl Zeiss Meditec, Jena Germany), which are both based on partial coherence interferometry. METHODS: Axial length, corneal power, and anterior chamber depth (corneal epithelium to lens) were measured in 86 eyes of 86 patients scheduled for cataract surgery using both biometers...
October 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27722756/impact-of-suction-loss-during-small-incision-lenticule-extraction-smile
#19
Manli Liu, Jianchao Wang, Wen Zhong, Danyang Wang, Yugui Zhou, Quan Liu
PURPOSE: To evaluate the clinical results of suction loss in eyes during small incision lenticule extraction (SMILE). METHODS: This prospective paired-eye case study enrolled 8,490 eyes of 4,296 patients, of which 35 eyes experienced suction loss during the SMILE procedure while being treated for myopia or myopic astigmatism. The eyes with suction loss were re-treated with SMILE, femtosecond laser-assisted LASIK (FS-LASIK), or pseudo SMILE, and the fellow eyes were treated with SMILE...
October 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27722755/aspheric-micro-monovision-lasik-in-correction-of-presbyopia-and-myopic-astigmatism-early-clinical-outcomes-in-a-chinese-population
#20
Ting Zhang, Yuan Sun, Shengbei Weng, Manli Liu, Yugui Zhou, Xiaonan Yang, Aleksandar Stojanovic, Quan Liu
PURPOSE: To analyze early clinical outcomes of aspheric micro-monovision LASIK for correction of presbyopia and myopia with or without astigmatism. METHODS: Prospective, non-comparative case series of 80 eyes of 40 patients with a mean age of 43.4 ± 4.9 years (range: 38 to 63 years) treated bilaterally using an aspheric micro-monovision protocol. The target refraction was plano for the distance eye and between -0.75 and -2.25 diopters (D) for the near eye. Visual acuity, ocular aberrations, contrast sensitivity, corneal topography, amplitude of accommodation, binocular sensorial function, and satisfaction score questionnaires were evaluated at 3 months after surgery...
October 1, 2016: Journal of Refractive Surgery
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