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keratoconus toric

Jay J Meyer, Bia Z Kim, Mohammed Ziaei, Charles N J McGhee
We describe 7 cases in which supplementary sulcus-based toric intraocular lenses (IOLs) rotated postoperatively, requiring surgical realignment. The initial rotation was identified clinically between 3 months and 36 months postoperatively. All eyes had keratoconus, with and without prior keratoplasty, and 6 had longer than average axial lengths. No preceding trauma could be identified for 5 of the eyes. One eye had 3 episodes of postoperative IOL rotation, eventually requiring suture fixation to stabilize the IOL...
February 2017: Journal of Cataract and Refractive Surgery
Doroodgar Farideh, Sanginabadi Azad, Niazi Feizollah, Niazi Sana, Alinia Cyrus, Ghoreishi Mohammad, Baradaran-Rafii Alireza
PURPOSE: To evaluate the clinical results of toric trifocal diffractive intraocular lens in eyes with cataract and mild keratoconus. METHODS: Five keratoconus patients (10 eyes) that had bilateral AT LISA 939 implantation were selected and had followed in 3-time horizons of 1, 3, and 6 months. Patients were 46 to 65 years old age, corneal astigmatism of (2.00 D at 6.75 D) and cataract that all of them needed cataract surgery. The distance, intermediate and near visual acuities, defocus curve, ocular aberrations, contrast sensitivity, were measured as effectiveness criteria...
March 2017: Medicine (Baltimore)
Qin Qin, Liping Yang, Zifang He, Zhenping Huang
BACKGROUND: This study aimed to investigate the clinical application of phakic toric intraocular collamer lens (TICL) implantation in treating ametropia following deep anterior lamellar keratoplasty (DALK) for patients with keratoconus, especially the effectiveness and safety of high astigmatism and indications of TICL implantation after corneal transplantation. METHODS: Using the self-controlled case series observation approach, 9 patients with ametropia (9 eyes) who underwent DALK surgery for keratoconus 1...
February 2017: Medicine (Baltimore)
Bence L Kolozsvári, Gergely Losonczy, Dorottya Pásztor, Mariann Fodor
BACKGROUND: Toric intraocular lens (IOL) implantation can be an effective method for correcting corneal astigmatism in patients with vitreoretinal diseases and cataract. Our purpose is to report the outcome of toric IOL implantation in two cases - a patient with scleral-buckle-induced regular corneal astigmatism and a patient with keratoconus following pars plana vitrectomy. As far as we are aware, there are no reported cases of toric IOL implantation in a vitrectomized eye with keratoconus nor of toric IOL implantation in patients with scleral-buckle-induced regular corneal astigmatism...
January 13, 2017: BMC Ophthalmology
Esteban Porcar, Juan Carlos Montalt, Enrique España-Gregori, Cristina Peris-Martínez
PURPOSE: We describe a case of fitting a corneo-scleral contact lens with a multi-aspheric geometry design (MAGD CScL) on top of a daily silicone hydrogel lens (piggyback system) for keratoconus management. METHODS: A 48-year-old man using soft toric contact lenses required an improvement in the unsatisfactory quality of his vision. He presented with bilateral asymmetric keratoconus with high myopia in the right eye (RE) and severe myopia in the left eye (LE). In addition, he had low vision in his LE because of a maculopathy...
January 7, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
Leyla Asena, Dilek D Altınörs
OBJECTIVES: Here, our aim was to report our treatment strategies and their results performed for visual rehabilitation after penetrating keratoplasty. MATERIALS AND METHODS: The medical records of 98 patients (54 male/44 female), with results from 104 eyes, who underwent penetrating keratoplasty between January 2013 and January 2015 at the Baskent University Faculty of Medicine, Department of Ophthalmology were reviewed. Patient age, indication for penetrating keratoplasty, interventions performed for visual rehabilitation, follow-up duration, topographic and refractive astigmatism at the end of follow-up, and final best corrected visual acuity results were recorded...
November 2016: Experimental and Clinical Transplantation
Waleed Ali Abou Samra, Eman Azmy Awad, Amr Hassan El Kannishy
AIM: To evaluate the visual and topographic outcomes of a two-stage approach treatment for selected cases of progressive keratoconus (KC); corneal collagen cross-linking (CXL) followed by phacoemulsification with toric intraocular lens (IOL) implantation. METHODS: The study included 9 eyes of 6 patients diagnosed with progressive KC, aged from 35 to 47 years (41.6±11.2 years). All studied eyes underwent a two-stage approach treatment: first corneal collagen CXL followed after at least 6 months by phacoemulsification with foldable toric IOL implantation in both eyes of three patients and only one eye of the other three patients...
October 3, 2016: Eye & Contact Lens
Giacomo Savini, Kristian Næser, Domenico Schiano-Lomoriello, Alessandro Mularoni
PURPOSE: To measure posterior corneal astigmatism (PCA) and investigate its influence on total corneal astigmatism (TCA) in eyes with keratoconus. METHODS: Keratometric astigmatism (KA), PCA, and TCA were investigated by means of a dual Scheimpflug analyzer in patients with keratoconus. Vector analysis was carried out with the Næser polar value method. RESULTS: We enrolled 119 eyes. PCA magnitude averaged 0.77 ± 0.43 diopters (D) and exceeded 0...
November 2016: Cornea
Ilse Ema Mol, Bart Th Van Dooren
PURPOSE: To describe the results of cataract extraction with toric intraocular lens (IOL) implantation in patients with preexisting astigmatism from three corneal conditions (keratoconus, postkeratoplasty, and postpterygium surgery). METHODS: Cataract patients with topographically stable, fairly regular (although sometimes very high) corneal astigmatism underwent phacoemulsification with implantation of a toric IOL (Zeiss AT TORBI 709, Alcon Acrysof IQ toric SN6AT, AMO Tecnis ZCT)...
2016: Clinical Ophthalmology
Kazutaka Kamiya, Kimiya Shimizu, Toshiyuki Miyake
PURPOSE: To assess the changes in astigmatism and higher-order aberrations (HOAs) after toric intraocular lens (IOL) implantation for mild non-progressive keratoconus with cataract. METHODS: We prospectively examined 19 eyes of 19 consecutive keratoconic patients (mean age ± standard deviation, 63.1 ± 9.1 years) who underwent phacoemulsification with toric IOL implantation. We determined uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), refractive astigmatism, corneal astigmatism, corneal HOAs and astigmatic axis rotation both preoperatively and 3 months postoperatively...
July 2016: Japanese Journal of Ophthalmology
Kazutaka Kamiya, Kimiya Shimizu, Akihito Igarashi, Toshiyuki Miyake
PURPOSE: To investigate the magnitudes and the axis orientations of anterior, posterior, and total central corneal astigmatism in eyes with keratoconus. DESIGN: Retrospective case series. METHODS: This study comprised 137 eyes of 137 keratoconic patients (97 men and 40 women; mean age ± standard deviation, 36.9 ± 12.2 years). The magnitude and the axis orientation of each corneal astigmatism were determined with a rotating Scheimpflug system...
November 2015: American Journal of Ophthalmology
David M Poulsen, Joann J Kang
PURPOSE OF REVIEW: To review the recent advances and reported outcomes in the use of intrastromal corneal ring segments (ICRS) for the treatment of corneal ectasia. RECENT FINDINGS: ICRS are a well-tolerated and effective treatment for patients with corneal ectasia, particularly keratoconus, offering long-term improvement in visual, refractive, and keratometric measures. ICRS do not consistently decrease corneal aberrations. Patients with mild-to-moderate keratoconus, known to have less predictable outcomes with ICRS, may be better selected and treated with the use of customized nomograms, accounting for factors such as internal astigmatism...
July 2015: Current Opinion in Ophthalmology
Georgios Labiris, Athanassios Giarmoukakis, Alexandros Rampotas, Maria Symeou, Panagiota Bougatsou, Haris Sideroudi, Vassilios P Kozobolis
PURPOSE: To evaluate the reproducibility of different Scheimpflug imaging-derived reference bodies in normal, keratoconus (KC), and crosslinked (CXL) eyes. METHODS: In this prospective, observational study, 40 participants populated the control group (CG), while 33 and 34 patients formed the KC group and the CXL group, respectively. One eye was randomly selected when both were eligible. Elevation measurements were obtained using Scheimpflug camera, by applying the following reference bodies: the best fit sphere (BFS), the best fit toric ellipsoid (BFTE), the best fit toric ellipsoid with fixed eccentricity of 0...
November 2015: European Journal of Ophthalmology
Hassan Hashemi, Shahab Heidarian, Mohammad A Seyedian, Abbasali Yekta, Mehdi Khabazkhoob
PURPOSE: To evaluate the results of using AcrySof toric intraocular lenses (IOLs) in the cataract surgery of patients with keratoconus (KCN). METHODS: In this study, 23 eyes of 17 patients with KCN who underwent cataract surgery using the toric IOL were evaluated. The amount and axis of the corneal astigmatism were measured by manual keratometry, corneal topography, refractive map of the Pentacam, and equivalent K reading of the Pentacam in all patients. RESULTS: The mean uncorrected visual acuity increased significantly 3 months after the surgery (P<0...
November 2015: Eye & Contact Lens
Rafic Antonios, Ali Dirani, Ali Fadlallah, Elias Chelala, Adib Hamade, Carole Cherfane, Elias Jarade
Purpose. To evaluate the long-term safety and clinical outcome of phakic Visian toric implantable collamer lens (ICL) insertion after corneal collagen cross-linking (CXL) in progressive keratoconus. Methods. This was a retrospective study of 30 eyes (19 patients), with progressive keratoconus, who underwent sequential CXL followed by Visian toric ICL implantation after 6 months. Results. At baseline, 6 eyes had stage I, 14 eyes stage II, and 10 eyes stage III keratoconus graded by Amsler-Krumeich classification...
2015: Journal of Ophthalmology
David Lockington, Ellen F Wang, Dipika V Patel, Sacha P Moore, Charles N J McGhee
PURPOSE: To assess the effectiveness of toric intraocular lenses (IOLs) in the management of post-keratoplasty astigmatism. SETTING: Public university hospital, Auckland, New Zealand. DESIGN: Retrospective case series. METHODS: The study analyzed post-keratoplasty eyes after cataract surgery and toric IOL (Acrysof SN60AT or T-flex 623T/573T) implantation. RESULTS: Twenty-six eyes were included...
December 2014: Journal of Cataract and Refractive Surgery
Kazutaka Kamiya, Kimiya Shimizu, Hidenaga Kobashi, Akihito Igarashi, Mari Komatsu, Akio Nakamura, Takashi Kojima, Tomoaki Nakamura
AIM: To assess the clinical outcomes following the use of toric implantable collamer lenses (toric ICL, STAAR Surgical) for the correction of high myopic astigmatism with keratoconus. METHODS: This retrospective study evaluated 21 eyes of 11 patients with spherical equivalents of -9.70±2.33 D (mean±SD) and astigmatism of -3.21±1.56 D who underwent toric ICL implantation for keratoconus. Preoperatively, and at 1, 3 and 6 months and 1, 2 and 3 years postoperatively, we assessed the safety, efficacy, predictability, stability and adverse events of the surgery...
February 2015: British Journal of Ophthalmology
Asim Kumar Kandar
We report a case of 18-year-old male who has undergone phacoemulsification with implantation of toric IOL (AcrySof IQ SN6AT9) after fixation of lens capsule with Cionni's capsular tension ring (CTR) for subluxated traumatic cataract with high astigmatism after deep anterior lamellar keratoplasty (DALK). He underwent right eye DALK for advanced keratoconus four years earlier. He had history of trauma one year later with displaced clear crystalline lens into  anterior chamber and graft dehiscence, which was repaired successfully...
July 2014: Indian Journal of Ophthalmology
Anastasios John Kanellopoulos, William J Dupps, Ibrahim Seven, George Asimellis
PURPOSE: To report a novel application of toric topographically customized transepithelial collagen cross-linking (CXL) aiming to achieve refractive astigmatic changes in a keratoconic cornea. METHODS: Specially formulated riboflavin transepithelial administration and delivery of high-fluence UVA in a topographically customized pattern was applied in an eye with progressive keratoconus. Visual acuity, cornea clarity, keratometry, topography, and pachymetry with a multitude of modalities, as well as endothelial cell counts were evaluated for >6 months...
May 2014: Case Reports in Ophthalmology
J Carballo-Alvarez, M C Puell, R Cuiña, D Diaz-Valle, J M Vazquez, J M Benitez-Del-Castillo
PURPOSE: To assess the feasibility of fitting a lathed soft toric contact lens (STCL) after the implant of intrastromal corneal ring segments (ICRSs) to treat keratoconus. METHODS: Six months after ICRS implantation, 47 eyes of 47 patients (18-45 years) were fitted with a STCL. In each eye, we determined refractive error, uncorrected (UDVA) and corrected distance visual acuity (CDVA), and keratometry and asphericity measures. The outcome of STCL fitting was defined according to CDVA as successful (≤0...
October 2014: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
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