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https://www.readbyqxmd.com/read/29227508/laboratory-evaluation-of-the-influence-of-decentration-and-pupil-size-on-the-optical-performance-of-a-monofocal-bifocal-and-trifocal-intraocular-lens
#1
Tamer Tandogan, Hyeck Soo Son, Chul Young Choi, Michael C Knorz, Gerd U Auffarth, Ramin Khoramnia
PURPOSE: To assess the influence of decentration and aperture size on the optical quality of different intraocular lenses (IOLs) of the same material, body design, and refractive power using standardized optical bench testing. METHODS: Using an optical bench set-up, an aspheric monofocal (CT ASPHINA 409M; Carl Zeiss Meditec, Jena, Germany), an aspheric diffractive bifocal (AT LISA 809M; Carl Zeiss Meditec), and an aspheric diffractive trifocal (AT LISA 839M; Carl Zeiss Meditec) intraocular lens (IOL) were evaluated, each with the same distance power, body design, and material...
December 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29227507/the-use-of-capsular-tension-rings-to-reduce-refractive-shift-in-patients-with-implantation-of-trifocal-intraocular-lenses
#2
Kristin Nistad, Frida Göransson, Eivind Støle, Hossein Shams, Björn Gjerdrum
PURPOSE: To determine whether use of a capsular tension ring (CTR) can increase refractive stability in patients with implantation of two different trifocal intraocular lenses (IOLs). METHODS: A prospective, consecutive series of eyes underwent refractive lens exchange with implantation of two different trifocal IOL designs: FineVision Micro F (non-toric) and FineVision POD FT (toric) (PhysIOL, Liege, Belgium). Power calculation was determined using the Haigis formula...
December 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29216854/acute-clouding-of-trifocal-lens-during-implantation-a-case-report
#3
Qian Liu, Suhua Zhang, Xiaogang Wang, Weifang Cao, Yading Jia
BACKGROUND: Intraoperative IOLs clouding of several kinds of hydrophilic acrylic intraocular lenses (IOLs) have been reported due to temperature changes. This phenomenon reported previously occurred in cold countries and during the winter months. However, no clinical case was reported about trifocal IOL opacification during operation. We report a case in which acute opacification of the optical region occurred simultaneously when AT LISA tri 839mp(Carl Zeiss) was implanted into the eye...
December 8, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29208809/optimizing-outcomes-with-multifocal-intraocular-lenses
#4
REVIEW
Gitansha Shreyas Sachdev, Mahipal Sachdev
Modern day cataract surgery is evolving from a visual restorative to a refractive procedure. The advent of multifocal intraocular lenses (MFIOLs) allows greater spectacle independence and increased quality of life postoperatively. Since the inception in 1980s, MFIOLs have undergone various technical advancements including trifocal and extended depth of vision implants more recently. A thorough preoperative workup including the patients' visual needs and inherent ocular anatomy allows us to achieve superior outcomes...
December 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29180843/visual-performance-reading-ability-and-patient-satisfaction-after-implantation-of-a-diffractive-trifocal-intraocular-lens
#5
Rita Mencucci, Eleonora Favuzza, Orsola Caporossi, Stanislao Rizzo
Purpose: To evaluate visual outcome, reading performance, contrast sensitivity, and patient satisfaction after cataract surgery with implantation of a diffractive trifocal intraocular lens (IOL). Patients and methods: A total of 42 eyes (21 patients) underwent cataract surgery with implantation of the trifocal IOL AT LISA tri 839MP. Visual acuity, contrast sensitivity, and patient satisfaction were evaluated 3 months postoperatively. Reading performance was evaluated at 3 months postoperatively with the MNREAD charts...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29161162/patient-perceived-and-laboratory-measured-halos-associated-with-diffractive-bifocal-and-trifocal-intraocular-lenses
#6
Francisco Alba-Bueno, Nuria Garzón, Fidel Vega, Francisco Poyales, María S Millán
PURPOSE: To examine and assess the halos generated in distance vision by multifocal intraocular lenses (IOLs) using both in vitro objective and in vivo subjective methods. SETTING: The objective method was carried out in the optics laboratory of the Applied Optics and Image Processing Group (Universitat Politècnica de Catalunya -Barcelona). The psychophysical and subjective methods were carried out in the Instituto de Oftalmología Avanzada Madrid Innova Ocular...
November 21, 2017: Current Eye Research
https://www.readbyqxmd.com/read/29138533/comparison-of-visual-outcomes-after-bilateral-implantation-of-a-diffractive-trifocal-intraocular-lens-and-blended-implantation-of-an-extended-depth-of-focus-intraocular-lens-with-a-diffractive-bifocal-intraocular-lens
#7
André Lins de Medeiros, André Gustavo de Araújo Rolim, Antonio Francisco Pimenta Motta, Bruna Vieira Ventura, César Vilar, Mário Augusto Pereira Dias Chaves, Pedro Carlos Carricondo, Wilson Takashi Hida
Purpose: The purpose of this study was to compare the visual outcomes and subjective visual quality between bilateral implantation of a diffractive trifocal intraocular lens, Alcon Acrysof IQ® PanOptix® TNFT00 (group A), and blended implantation of an extended depth of focus lens, J&J Tecnis Symfony® ZXR00 with a diffractive bifocal intraocular lens, J&J Vision Tecnis® ZMB00 (group B). Methods: This prospective, nonrandomized, consecutive, comparative study included the assessment of 40 eyes in 20 patients implanted with multifocal intraocular lens...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29118504/bilateral-early-capsular-block-syndrome-following-implantation-of-the-new-trifocal-toric-lens
#8
Ashbala Khattak
A young patient underwent phacoemulsification with endocapsular implantation of trifocal toric lens in both eyes (AT LISA tri toric 939 MP, Carl-Zeiss, Germany). One-week postsurgery, he developed capsular block syndrome (CBS) in both eyes. There was deterioration of uncorrected visual acuity at 1-week postsurgery, with a myopic shift of 2.5 diopters (D) in the right eye and 2.0 D in the left eye. The intraocular pressure was only elevated in the left eye. Neodymium: yttrium-aluminum-garnet laser posterior capsulotomy resolved the block successfully in both eyes...
September 2017: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/29117412/in-vivo-measurement-of-longitudinal-chromatic-aberration-in-patients-implanted-with-trifocal-diffractive-intraocular-lenses
#9
Maria Vinas, Ana Gonzalez-Ramos, Carlos Dorronsoro, Vyas Akondi, Nuria Garzon, Francisco Poyales, Susana Marcos
PURPOSE: To measure the longitudinal chromatic aberration (LCA) by both psychophysical methods and in vivo double-pass retinal imaging in patients bilaterally implanted with trifocal diffractive intraocular lenses (IOLs). METHODS: Measurements were performed with a polychromatic adaptive optics system provided with a supercontinuum laser, a Hartmann-Shack wavefront sensor, a deformable mirror, a motorized Badal system, a pupil monitoring system, a double-pass retinal imaging channel, and a psychophysical channel with monochromatically illuminated stimuli...
November 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29073156/comparison-of-clinical-performance-between-trifocal-and-bifocal-intraocular-lenses-a-meta-analysis
#10
Zequan Xu, Danmin Cao, Xu Chen, Song Wu, Xin Wang, Qiang Wu
PURPOSE: To compare the clinical performance between trifocal and bifocal intraocular lenses in bilateral cataract and/or refractive lens exchange (RLE) surgery. METHODS: A comprehensive literature search of PubMed, EMBASE, Cochrane Controlled Trials Register and Web of Science was performed through October 2016 to identify randomized, controlled trials (RCTs) and comparative cohort studies. The primary outcomes were uncorrected distance visual acuity (UDVA), uncorrected intermediate visual acuity (UIVA), uncorrected near visual acuity (UNVA), defocus curve, spectacle independence, patient satisfaction and contrast sensitivity...
2017: PloS One
https://www.readbyqxmd.com/read/29062771/postoperative-visual-performance-with-a-bifocal-and-trifocal-diffractive-intraocular-lens-during-a-1-year-follow-up
#11
Peter Mojzis, Lucia Kukuckova, Katarina Majerova, Peter Ziak, David P Piñero
AIM: To evaluate and compare the clinical outcomes with a diffractive bifocal and trifocal intraocular lens (IOL) during a 12-month follow-up. METHODS: Prospective comparative study including 75 eyes of 38 patients (44-70y) undergoing uneventful cataract surgery. Each patient was randomly assigned to one type of IOL, bifocal (35 eyes) or trifocal (40 eyes). Visual, refractive, and contrast sensitivity changes were evaluated in a 12-month follow-up. The binocular defocus curve was also measured at 12mo postoperatively...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29044974/quality-of-life-related-variables-measured-for-three-multifocal-diffractive-intraocular-lenses-a-prospective-randomised-clinical-trial
#12
Jorge L Alió, Hakan Kaymak, Detlef Breyer, Beatrice Cochener, Ana B Plaza-Puche
IMPORTANCE: Quality of vision after multifocal intraocular lens (IOLs) implantation in relation to patient satisfaction. It is important to include the evaluation of visual quality and patient satisfaction in clinical practice. BACKGROUND: To evaluate and compare quality of life and patient satisfaction after implantation of three types of diffractive-refractive and apodized-diffractive bifocal and trifocal multifocal IOLs. DESIGN: Comparative, prospective, case series and randomized...
October 16, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/29027083/objective-and-subjective-results-following-implantation-of-the-finevision-trifocal-intraocular-lens-in-mexican-patients
#13
Ivo Ferreira-Ríos, Karla Zuñiga-Posselt, Juan Carlos Serna-Ojeda, Eduardo Chávez-Mondragón
PURPOSE: To evaluate objective and subjective results after bilateral implantation of a diffractive trifocal intraocular lens (IOL) in a Mexican population. METHODS: Prospective, interventional case series involved 15 cataract surgery patients who underwent bilateral implantation of the trifocal Micro F lens FineVision IOL (PhysIOL, Liège, Belgium). Objective analysis involved assessment of monocular uncorrected distance (UDVA), near (UNVA) at 30 and 40 cm, and intermediate visual acuity (UIVA) at 50, 60, and 70 cm, preoperatively, and at postoperative months 1, 3, and 6...
October 12, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28991332/visual-performance-with-bifocal-and-trifocal-diffractive-intraocular-lenses-a-prospective-three-armed-randomized-multicenter-clinical-trial
#14
Hakan Kaymak, Detlev Breyer, Jorge L Alió, Beatrice Cochener
PURPOSE: To evaluate and compare quality of vision and reading performance outcomes after implantation of bifocal refractive-diffractive, bifocal apodized diffractive, or trifocal diffractive-refractive intraocular lenses (IOLs). METHODS: This randomized, prospective, three-armed multicenter (Spain, Germany, and France) trial included 104 eyes of 52 patients (mean age: 63.2 ± 7.7 years). Patients underwent cataract surgery with bilateral implantation of either AT LISA 809M (Carl Zeiss Meditec, Jena, Germany: AT LISA group, 38 eyes), AT LISA tri 839MP (Carl Zeiss Meditec: AT LISA tri group, 32 eyes), or ReSTOR SN6AD1 (Alcon Laboratories, Inc...
October 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28956141/-optical-quality-of-three-trifocal-intraocular-lens-models-an-optical-bench-comparison
#15
R Khoramnia, T M Yildirim, T Tandogan, S Liebing, G Łabuz, C Y Choi, G Auffarth
BACKGROUND: Knowledge of the optical quality of different trifocal intraocular lenses (IOL) is important in customized patient care. OBJECTIVE: Different trifocal IOL were compared regarding their optical quality. MATERIALS AND METHODS: We analyzed the FineVision (PhysIOL, Liège, Belgium), the AT LISA tri 839MP (Zeiss, Oberkochen, Germany), and the AcrySofIQ PanOptix (Alcon, Fort Worth, TX, USA) with a power of +21D for the distance using the OptiSpheric IOL PRO optical bench (Trioptics, Wedel, Germany)...
September 27, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28942513/loco-regional-extensions-of-central-nervous-system-germ-cell-tumors-a-retrospective-radiological-analysis-of-100-patients
#16
Loïc Duron, Flavie Sadones, Philippe Thiesse, Cécile Cellier, Claire Alapetite, François Doz, Didier Frappaz, Hervé J Brisse
PURPOSE: The current staging system of central nervous system (CNS) germ cell tumors (GCT) includes a binary classification in "localized" or "metastatic" disease based on the absence or presence of leptomeningeal dissemination. Loco-regional tumor dissemination has been barely described whereas its accurate definition might be useful in terms of prognosis and treatment, especially for radiation therapy planning. Our purpose was therefore to describe MR patterns and prevalence of loco-regional extensions of these tumors...
September 23, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28931181/-refractive-lens-exchange
#17
Fritz H Hengerer, Ina Conrad-Hengerer
In refractive surgery the removal of the natural lens followed by implantation of an artificial intraocular lens has been an established method to treat refractive errors. The term "clear lens exchange" separates this approach from cataract surgery, where a cloudy lens has to be removed. With regard to currently available intraocular lens technologies, there is a wide range to correct myopia, hyperopia as well as astigmatism. Trifocal or extended depth-of-focus lenses (EDOF) even with a toric component offer the patients a potential benefit to further address presbyopia, respectively...
October 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28923587/visual-performance-of-a-quadrifocal-trifocal-intraocular-lens-following-removal-of-the-crystalline-lens
#18
Thomas Kohnen, Michael Herzog, Eva Hemkeppler, Sabrina Schönbrunn, Nina De Lorenzo, Kerstin Petermann, Myriam Böhm
PURPOSE: To evaluate visual performance after implantation of a quadrifocal intraocular lens (IOL). DESIGN: Prospective, non-comparative case series METHODS: Setting: Department of Ophthalmology, Goethe University, Frankfurt, Germany. Patient or Study Population: Twenty-seven patients (54 eyes) received bilateral implantation of the PanOptix IOL (AcrySof® IQ PanOptixTM, Alcon Research, Fort Worth, TX, USA) pre-enrollment. Exclusion criteria were previous ocular surgeries, corneal astigmatism of >1...
September 15, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28889556/short-term-visual-outcome-after-unilateral-implantation-of-a-trifocal-diffractive-presbyopia-correcting-intraocular-lens
#19
Konstantinos T Tsaousis, Maria Dermenoudi, Ioannis T Tsinopoulos
No abstract text is available yet for this article.
September 9, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28885672/a-comparative-study-of-the-visual-outcomes-between-a-new-trifocal-and-an-extended-depth-of-focus-intraocular-lens
#20
Ramón Ruiz-Mesa, Antonio Abengózar-Vela, María Ruiz-Santos
PURPOSE: To evaluate and compare the visual outcomes and ocular optical performance of the PanOptix trifocal intraocular lens (IOL) and Symfony extended range of vision IOL. METHODS: Sixty-eight eyes of 34 patients were divided into 2 groups: 20 patients with the PanOptix IOL and 14 patients with the Symfony IOL. Binocular uncorrected distance visual acuity, best-corrected distance visual acuity (BCDVA), distance-corrected intermediate visual acuity (DCIVA) at 80 and 60 cm, and distance-corrected near visual acuity (DCNVA) at 40 cm were evaluated...
September 8, 2017: European Journal of Ophthalmology
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