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Intraocular lens

C Chassain, C Chamard
PURPOSE: To evaluate the visual outcomes, the incidence of glistenings and posterior capsule opacification in a series of consecutive eyes with a new blue light-filtering hydrophobic acrylic intraocular lens (IOL) SETTING: Service d'ophtalmologie, clinique Beausoleil, avenue de Lodève, Montpellier. DESIGN: Retrospective, cross-sectional study. METHODS: This study included a series of 66 eyes that underwent routine cataract surgery with PODEye (PhysIOL SA, Liège, Belgium) monofocal IOL implantation between May 2011 and November 2011...
June 19, 2018: Journal Français D'ophtalmologie
İrfan Akalın, Melek Tüfek, Mustafa Türkyılmaz, Faruk Öztürk
PURPOSE: To compare the preoperative and postoperative measurements of optical low-coherence reflectometry (OLCR) biometry and assessment of its refractive predictability. METHODS: A total of 114 eyes of 102 patients who underwent cataract treatment were prospectively examined. The axial length (AL), central corneal thickness (CCT), anterior chamber depth (ACD), lens thickness (LT), K (keratometry) 1, K2, K average (KAVE) and K astigmatic (KAST) values were recorded using Lenstar LS 900 (Haag-Streit, Koeniz, Switzerland) OLCR device...
June 21, 2018: International Ophthalmology
Alok Sati, Somasheila I Murthy, S Arjun, Varsha M Rathi
We report two cases of anterior megalophthalmos with cataract. Both cases have megalocornea, cavernous anterior chamber, enlarged iris-lens diaphragm, and normal axial length. The vision was less due to cataract. To restore vision, phacoemulsification was performed in each eye in both cases. Intraoperatively, to overcome anatomical challenges, we made scleral tunnel incision, stained anterior capsule, and fixated intraocular lens (IOL) by different techniques. In thefirst case, IOL was fixated through the sclera, whereas in the second case, IOL stabilization was achieved by capturing the optic in anterior capsulorhexis margin and placing the haptics in sulcus...
May 2018: Oman Journal of Ophthalmology
Craig Wilde, Marco U Morales, Dharmalingham Kumudhan, Justin Sim, Winfried Amoaku
Malignant glaucoma (MG), also known as aqueous misdirection and cilio-vitreo-lenticular block, is an infrequent cause of secondary angle closure glaucoma. Despite conventional treatment, it often has a poor visual outcome. It is recognized clinically by raised intraocular pressure associated with shallowing of the peripheral and central anterior chamber in the presence of a patent peripheral iridotomy/iridectomy. Despite being known to occur after a variety of surgical procedures, it most commonly presents following filtration surgery in hypermetropic eyes with angle closure glaucoma...
May 2018: Oman Journal of Ophthalmology
Efstathios Vounotrypidis, Carlo Lackerbauer, Daniel Kook, Martin Dirisamer, Siegfried Priglinger, Wolfgang J Mayer
CONTEXT: Intraocular lenses with variable total diameter are supposed to fit better in the capsular bag and lead to fewer complications. AIMS: This study aims to investigate the efficacy and the safety of an intraocular lens model with variable total diameter. SETTINGS AND DESIGN: Prospective randomized intraindividual study. SUBJECTS AND METHODS: Thirty-two eyes of sixteen patients with bilateral age-related cataract received standard cataract surgery with implantation of an intraocular lens with a standard diameter in one eye (Quatrix®, Group A) and with a variable total diameter in the fellow eye (Quatrix Evolutive®, Group B)...
May 2018: Oman Journal of Ophthalmology
Tao Ming Thomas Chia, Hoon C Jung
We report a case of patient dissatisfaction after sequential myopic and hyperopic LASIK in the same eye. We discuss the course of management for this patient involving eventual cataract extraction and intraocular lens (IOL) implantation with attention to the IOL power calculation method used.
May 2018: Case Reports in Ophthalmology
Nicolas Cesário Pereira, Evandro Ribeiro Diniz, Ramon Coral Ghanem, Ruy Cunha Filho, Tatiana Moura Prazeres, Walton Nose, Adriana Dos Santos Forseto
PURPOSE: This report describes the use of Descemet membrane endothelial keratoplasty for the management of endothelial decompensation after multifocal intraocular lens implantation. METHODS: In this retrospective study, we reviewed and assessed the surgical outcomes of 9 patients (9 eyes) who underwent Descemet membrane endothelial keratoplasty after multifocal intraocular lens implantation. RESULTS: Corneal edema occurred due to Fuchs endothelial corneal dystrophy (n=3), pseudophakic bullous keratopathy (n=3), Descemet's membrane detachment (n=2), and toxic anterior segment syndrome (n=1)...
June 2018: Arquivos Brasileiros de Oftalmologia
S Fili, S Seddig, E Papadopoulou, M Kohlhaas
BACKGROUND: The Cypass Microstent (Transcend Medical, Menlo Park, CA, USA) is a biocompatible polyamide implant that is implanted in the suprachoroidal space and improves the flow of the aqueous humour via the uveoscleral pathway. MATERIAL AND METHODS: In a retrospective clinical study 162 patients (220 eyes) with an average age of 71.8 (±14.2) years with a mild to moderate glaucoma were treated with a Cypass implant. In the study three groups of patients (group 1, group 2 and group 3) were formed...
June 19, 2018: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
Francisco Bandeira, Merce Morral, Daniel Elies, Sergio Eguiza, Spyridoula Souki, Felicidad Manero, Jose L Güell
Synopsis: Transitional toric intraocular lens (IOL) was developed to improve refractive outcomes in cataract surgery. We report refractive, vectorial outcomes, and stability of spherical equivalent over 12 months after implantation of this IOL. Purpose: To evaluate visual and refractive outcomes of a transitional conic toric intraocular lens (IOL) (Precizon® ) for the correction of corneal astigmatism in patients undergoing cataract surgery. Setting: The Ocular Microsurgery Institute (IMO), a private practice in Barcelona, Spain...
2018: Clinical Ophthalmology
Mark A P Fajgenbaum, Nick Kopsachilis, Emma J Hollick
PURPOSE: To report surgical outcomes and endothelial cell density (ECD) trends up to 2 years post-operatively in the first cohort of eyes undergoing Descemet's membrane endothelial keratoplasty (DMEK) for low-to-moderate risk indications at our UK centre. Tight corneal sutures were used to ensure high intraoperative pressure from intracameral air for 10-min and to maintain a good post-operative air fill. Outcomes were compared to a prior series at our unit of similar eyes having Descemet's stripping endothelial keratoplasty (DSEK)...
June 19, 2018: Eye
Do-Hyun Kim, Robert James, Don Calogero, Ilko K Ilev
We present a fiber-optic dual-confocal laser caliper method for noncontact high-precision sensing and measuring thickness and refractive index of intraocular lens (IOL) implants. The principle of the method is based on sensing and measuring the confocal intensity response of the laser beam reflection from the opposite object surfaces, which provides the advanced feature of having no limitations on the object shape, thickness, and transparency. Using single-mode optical fibers and a 658-nm laser source, the thickness measurement accuracy was assessed to be as high as 5  μm...
June 2018: Journal of Biomedical Optics
Mark Packer, Jon I Williams, Gregg Feinerman, Richard S Hope
Purpose: Glistening formation in the intraocular lens (IOL) optic has the potential to impact quality of vision. The enVista One-Piece Hydrophobic Acrylic Spherical IOL Model MX60 (MX60 IOL) is currently the only US Food and Drug Administration-approved IOL with a label of "no glistenings". The purpose of this prospective, multicenter, partially randomized, partially controlled, double-masked, pivotal study was to evaluate the safety and effectiveness of the enVista One-Piece Hydrophobic Acrylic MX60T Toric IOL (enVista MX60T Toric IOL)...
2018: Clinical Ophthalmology
Gernot Steinwender, Luisa Schwarz, Myriam Böhm, Anna Slavík-Lenčová, Eva Hemkeppler, Mehdi Shajari, Thomas Kohnen
PURPOSE: To report visual and refractive outcomes after implantation of a trifocal intraocular lens (IOL) in highly myopic patients. SETTING: Department of Ophthalmology, Goethe University, Frankfurt, Germany. DESIGN: Retrospective case series. METHODS: This study included eyes with previous phacoemulsification and implantation of a trifocal IOL (AT LISA tri 839MP or 939MP) with an IOL power between 0.0 diopter (D) and 10...
June 14, 2018: Journal of Cataract and Refractive Surgery
Kerr Brogan, Charles J M Diaper, Alan P Rotchford
BACKGROUND/AIMS: To report refractive outcomes from an National Health Service (NHS) cataract surgery service and assess if results meet suggested benchmark standard. METHODS: Details of all patients undergoing cataract surgery in the Southern General and New Victoria hospitals in Glasgow, UK, between November 2006 and December 2016 were prospectively entered into an electronic database. Patients were reviewed 4 weeks postoperatively in the eye clinic and underwent refraction at their local optometrist prior to this appointment...
June 15, 2018: British Journal of Ophthalmology
Abhay R Vasavada, Vaishali Vasavada, Sajani K Shah, M R Praveen, Viraj A Vasavada, Rupal H Trivedi, Farida Rawat, Archana Koul
PURPOSE: Comparative evaluation of complications and visual outcomes following bilateral congenital cataract surgery in children upto 2 years of age with and without primary intraocular lens (IOL) implantation at 5 years follow-up DESIGN: Randomized, controlled, clinical trial METHODS: 60 children (120 eyes) upto 2 years of age undergoing bilateral congenital cataract surgery randomized to: group 1, primary aphakia (n=30) or group 2,primary IOL implantation (n=30). Single surgeon performed surgeries with identical surgical technique...
June 12, 2018: American Journal of Ophthalmology
Natascha Riehle, Tobias Götz, Andreas Kandelbauer, Günter E M Tovar, Günter Lorenz
This article contains data on the synthesis and mechanical characterization of polysiloxane-based urea-elastomers (PSUs) and is related to the research article entitled "Influence of PDMS molecular weight on transparency and mechanical properties of soft polysiloxane-urea-elastomers for intraocular lens application" (Riehle et al., 2018) [1]. These elastomers were prepared by a two-step polyaddition using the aliphatic diisocyanate 4,4'-Methylenbis(cyclohexylisocyanate) (H12 MDI), a siloxane-based chain extender 1,3-Bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane (APTMDS) and amino-terminated polydimethylsiloxanes (PDMS) or polydimethyl-methyl-phenyl-siloxane-copolymers (PDMS-Me,Ph), respectively...
June 2018: Data in Brief
Tao Guo, Peng Gao, Li Fang, Li Guo, Yuchen Fan, Changgen Liu
The present prospective clinical observational study aimed to evaluate the efficacy of Toric intraocular lenses (IOL) to achieve rotational stability and astigmatism correction in eyes with high myopia. A total of 27 consecutive cataract patients (39 eyes) with pre-existing corneal astigmatism (1.5-3.5 D) were divided into two groups according to their refractive status: One group of 18 eyes with high myopia -(12.5-6.0 D) and another group consisting of 21 eyes with emmetropia or low myopia (-3.0-0.0 D). All eyes underwent cataract phacoemulsification surgeries by the same surgeon, with the implantation of an AcrySof® Toric IOL at the pre-designed degree...
June 2018: Experimental and Therapeutic Medicine
Simon Schröder, Achim Langenbucher
PURPOSE: To discuss the impact of intraocular lens-(IOL)-power, IOL-thickness, IOL-shape, corneal power and effective lens position (ELP) on the distance between the anterior IOL vertex (ALP) of a thick IOL and the ELP of its thin lens equivalent. METHODS: We calculated the ALP of a thick IOL in a model eye, which results in the same focal plane as a thin IOL placed at the ELP using paraxial approximation. The model eye included IOL-power (P), ELP, IOL-thickness (Th), IOL-shape-factor (X), and corneal power (DC)...
2018: PloS One
Aliyah Hadi Alameri, Donald Ural Stone
Exposure of the suture after transscleral suture fixation of posterior chamber intraocular lenses is a known late complication that typically requires intervention. Patch grafts of sclera, cornea, or pericardium have been described. We describe a novel autologous scleral flap to cover an exposed 10-0 polypropylene suture. This technique requires no exogenous graft material and avoids the risks of intraocular manipulation of the lens. Every effort should be made to avoid external exposure of the suture, but in cases that develop suture erosion, an autologous scleral flap may be a useful intervention...
January 2018: Middle East African Journal of Ophthalmology
Huamao Miao, Xun Chen, Mi Tian, Yingjun Chen, Xiaoying Wang, Xingtao Zhou
BACKGROUND: To investigate refractive outcomes and optical quality after implantation of posterior chamber phakic implantable collamer lens with a central hole (ICL V4c) to correct high myopia. METHODS: Sixty seven eyes of 38 patients who underwent ICL V4c implantation were enrolled. The mean preoperative spherical equivalent (SE) was - 12.44 ± 3.15 D (range: - 6.63 to - 20.50 D). The refractive outcomes and optical quality of the eyes at postoperative 1 and 3 months were evaluated and compared...
June 14, 2018: BMC Ophthalmology
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