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Multifocal IOL

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https://www.readbyqxmd.com/read/29161162/patient-perceived-and-laboratory-measured-halos-associated-with-diffractive-bifocal-and-trifocal-intraocular-lenses
#1
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/29120714/functional-magnetic-resonance-imaging-to-assess-neuroadaptation-to-multifocal-intraocular-lenses
#2
Andreia M Rosa, Ângela C Miranda, Miguel M Patrício, Colm McAlinden, Fátima L Silva, Miguel Castelo-Branco, Joaquim N Murta
PURPOSE: To evaluate the use of functional magnetic resonance imaging (MRI) to assess neuroadaptation to multifocal intraocular lenses (IOLs). SETTING: Faculty of Medicine, University of Coimbra, Coimbra, Portugal. DESIGN: Prospective case study. METHODS: Patients with bilateral diffractive IOL implantation after cataract surgery had functional MRI at postoperative intervals of 3 weeks and 6 months. A nonintervention control group was included as proof of concept...
October 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29117609/-in-vitro-evaluation-of-the-optical-quality-of-segmental-refractive-multifocal-intraocular-lenses
#3
Timur Mert Yildirim, Gerd Uwe Auffarth, Tamer Tandogan, Stephanie Liebing, Grzegorz Labuz, Chul Young Choi, Ramin Khoramnia
Objectives In customised patient care, it is important to know the optical quality of different intraocular lenses (IOL). In this study, the optical quality of three segmental intraocular lenses were compared. Materials and Methods The LENTIS Comfort LS-313 MF15, LENTIS Mplus X LS-313 MF30 and LENTIS High Add IOL LS-313 MF80 (Oculentis, Berlin, Germany) with a far power of + 21 D were analysed at the optical bench OptiSpheric IOL PRO (Trioptics GmbH, Wedel, Germany). The lenses have almost the same optical design but differ in the power of the near segment...
November 8, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29090052/review-of-static-approaches-to-surgical-correction-of-presbyopia
#4
REVIEW
Mohammad Ali Zare Mehrjerdi, Masomeh Mohebbi, Mehdi Zandian
Presbyopia is the primary cause of reduction in the quality of life of people in their 40s, due to dependence on spectacles. Therefore, presbyopia correction has become an evolving and rapidly progressive field in refractive surgery. There are two primary options for presbyopia correction: the dynamic approach uses the residual accommodative capacity of the eye, and the static approach attempts to enhance the depth of focus of the optical system. The dynamic approach attempts to reverse suspected pathophysiologic changes...
October 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/29044974/quality-of-life-related-variables-measured-for-three-multifocal-diffractive-intraocular-lenses-a-prospective-randomised-clinical-trial
#5
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, randomized PARTICIPANTS: 104 eyes of 52 patients METHODS: 104 eyes of 52 patients underwent phacoemulsification surgery with bilateral implantation of one of three multifocal IOLs: AT LISA 809M (Carl Zeiss Meditec) (AT LISA group, 38 eyes), AT LISAtri 839MP (Carl Zeiss Meditec) (AT LISAtri group, 32 eyes), and ReSTOR SN6AD1 (Alcon) (ReSTOR group, 34 eyes)...
October 16, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/29025173/-impact-of-near-addition-on-the-optical-quality-of-diffractive-multifocal-intraocular-lenses-a-laboratory-study-using-an-optical-bench
#6
Tamer Tandogan, Gerd Uwe Auffarth, Stephanie Liebing, Chul Young Choi, Ramin Khoramnia
Purpose To analyse the optical quality of diffractive multifocal intraocular lenses (IOLs) with different near additions in a laboratory study. Methods We analysed the AcrySof(®) IQ ReSTOR(®) + 2.5 D SV25T0 (Alcon Laboratories inc., Fort Worth, USA), the AcrySof(®) IQ ReSTOR(®) + 3.0 D SN6AD1 (Alcon, USA) and the TECNIS(®) ZMA00 and ZMB00 (Abbott Medical Optics, USA) with a power of 21D for the distance, using the OptiSpheric(®) IOL PRO optical bench (TRIOPTICS, Wedel, Germany). The lenses have a similar optical design but different near additions: The ReSTOR + 2...
October 12, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28917400/visual-quality-and-performance-comparison-between-2-refractive-rotationally-asymmetric-multifocal-intraocular-lenses
#7
Richard N McNeely, Eric Pazo, Andrew Spence, Olivier Richoz, M Andrew Nesbit, Tara C B Moore, Jonathan E Moore
PURPOSE: To compare the 12-month postoperative quality of vision and visual performance of 2 different refractive rotationally asymmetric multifocal intraocular lenses (IOLs). SETTING: Cathedral Eye Clinic, Belfast, Northern Ireland, United Kingdom. DESIGN: Retrospective case series. METHODS: Refractive lens exchange (RLE) patients were divided into 2 groups. Group A comprised eyes receiving a Lentis Mplus LS-312 MF30 IOL and Group B, eyes receiving a Lenstec SBL-3 IOL...
August 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28868034/correction-of-high-astigmatism-after-penetrating-keratoplasty-with-toric-multifocal-intraocular-lens-implantation
#8
Raffaele Nuzzi, Francesca Monteu
After penetrating keratoplasty (PK), high astigmatism is often induced, being frequently about 4-6 dpt. According to the entity and typology of astigmatism, different methods of correction can be used. Selective suture removal, relaxing incisions, wedge resections, compression sutures, photorefractive keratectomy, and laser-assisted in situ keratomileusis can reduce corneal astigmatism and ametropia, but meanwhile they can cause a reduction in the corneal integrity and cause an over- or undercorrection. In case of moderate-to-high regular astigmatisms, the authors propose a toric multifocal intraocular lens (IOL) implantation to preserve the corneal integrity (especially in PK after herpetic corneal leukoma keratitis)...
May 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28832744/posterior-argentinean-flag-like-sign-during-primary-posterior-continuous-curvilinear-capsulorhexis
#9
Frederico França Marques, Daniela Mieira Villano Marques, Fabio Kenji Matsumoto
We describe a unique complication during primary posterior continuous curvilinear capsulorhexis (PCCC) in a patient with megalocornea scheduled for phacoemulsification with toric multifocal intraocular lens (IOL) implantation. After nucleus emulsification and cortex removal, the capsular bag was filled with cohesive viscoelastic in preparation for PCCC to achieve reverse optic capture of the IOL, thus ensuring stability. However, as soon as the initial puncture was made using a 27-gauge needle to start the capsulotomy, the posterior capsule opening extended peripherally from 0º-180º...
June 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28790805/bilateral-implantation-of-3-0-d-multifocal-toric-intraocular-lenses-results-of-a-us-food-and-drug-administration-clinical-trial
#10
Robert Lehmann, Satish Modi, Bret Fisher, Magda Michna, Michael Snyder
PURPOSE: The purpose of this study was to evaluate the clinical outcomes of apodized diffractive +3.0 D multifocal toric intraocular lens (IOL) implantations in subjects with preoperative corneal astigmatism. PATIENTS AND METHODS: This was a prospective cohort study conducted at 21 US sites. The study population consisted of 574 subjects, aged ≥21 years, with preoperative astigmatism 0.75-2.82 D, and potential postoperative visual acuity (VA) ≥0.2 logMAR, undergoing bilateral cataract removal by phacoemulsification...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28780781/multifocal-intraocular-lenses-and-extended-depth-of-focus-intraocular-lenses
#11
REVIEW
Detlev R H Breyer, Hakan Kaymak, Timon Ax, Florian T A Kretz, Gerd U Auffarth, Philipp R Hagen
Presbyopia and cataract patients' desire for increased spectacle independence after surgery is one of the main drivers for the development of multifocal intraocular lenses (MIOLs) and extended depth of focus (EDOF) intraocular lenses (IOLs). As education, biometry, diagnostics, surgical techniques, and MIOL/EDOF IOL designs have improved over the past decade, an increasing number of cataract surgeons have become cataract-refractive surgeons to help address this need. There is not 1 single MIOL/EDOF IOL, however, that suits all patients' needs...
July 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28780780/intraocular-lens-explantation-after-cataract-surgery-indications-results-and-explantation-techniques
#12
REVIEW
Roberto Fernández-Buenaga, Jorge L Alió
Intraocular lens (IOL) explantation after uneventful cataract surgery is rare but associated with a high risk of complications. In the past few years, the number of published reports about IOL explantation has grown significantly and most of them focus on explantation surgery due to spontaneous late IOL in-the-bag dislocations. This is related to the growth of the pseudophakic population, first as a result of longer lifespans, and second, because the improvements in safety and accuracy of phacoemulsification surgery have led to an increased number of phacorefractive procedures performed in younger patients...
July 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28744096/subjective-evaluation-of-uncorrected-vision-in-patients-undergoing-cataract-surgery-with-diffractive-multifocal-lenses-and-monovision
#13
Ricardo Alexandre Stock, Thaís Thumé, Luan Gabriel Paese, Elcio Luiz Bonamigo
PURPOSE: To analyze patient satisfaction and difficulties with bilateral multifocal intraocular lenses (IOLs) implantation and aspheric monofocal IOLs implantation using monovision, after cataract surgery. MATERIALS AND METHODS: A total of 61 participants were included in the study, 29 with monovision and 32 with multifocal lenses. The inclusion criteria were patients undergoing phacoemulsification for bilateral visual impairment due to cataracts and presenting with postoperative visual acuity of 20/30 or better for distance and line J3 or better for near vision...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28732609/refractive-outcomes-after-multifocal-intraocular-lens-exchange
#14
Eric J Kim, Ahmar Sajjad, Ildamaris Montes de Oca, Douglas D Koch, Li Wang, Mitchell P Weikert, Zaina N Al-Mohtaseb
PURPOSE: To evaluate the refractive outcomes after multifocal intraocular lens (IOL) exchange. SETTING: Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, USA. DESIGN: Retrospective case series. METHODS: Patients had multifocal IOL explantation followed by IOL implantation. Outcome measures included type of IOL, surgical indication, corrected distance visual acuity (CDVA), and refractive prediction error...
June 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28732606/visual-performance-after-bilateral-implantation-of-2-new-presbyopia-correcting-intraocular-lenses-trifocal-versus-extended-range-of-vision
#15
Gaspare Monaco, Mariangela Gari, Fabio Di Censo, Andrea Poscia, Giada Ruggi, Antonio Scialdone
PURPOSE: To compare the visual outcomes and quality of vision of 2 new diffractive multifocal intraocular lenses (IOLs) with those of a monofocal IOL. SETTING: Fatebenefratelli e Oftalmico Hospital, Milan, Italy. DESIGN: Prospective case series. METHODS: Patients had bilateral cataract surgery with implantation of a trifocal IOL (Panoptix), an extended-range-of-vision IOL (Symfony), or a monofocal IOL (SN60WF). Postoperative examinations included assessing distance, intermediate, and near visual acuity; binocular defocus; intraocular and total aberrations; point-spread function (PSF); modulation transfer function (MTF); retinal straylight; and quality-of-vision (QoV) and spectacle-dependence questionnaires...
June 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28718041/quality-of-vision-patient-satisfaction-and-long-term-visual-function-after-bilateral-implantation-of-a-low-addition-multifocal-intraocular-lens
#16
Emilio Pedrotti, Rodolfo Mastropasqua, Jacopo Bonetto, Christian Demasi, Francesco Aiello, Carlo Nucci, Cesare Mariotti, Giorgio Marchini
PURPOSE: The aim of the current study was to compare the quality of vision, contrast sensitivity and patient satisfaction with a biaspheric, segmented, rotationally asymmetric IOL (Lentis Comfort LS-313 MF 15-Oculentis GmbH, Berlin, Germany) as opposed to those of a monofocal IOL. METHODS: This prospective single-blind comparative study included two groups of patients affected by bilateral senile cataract who underwent lens extraction and IOL implantation. The first group received a bilateral implantation of a monofocal IOL, and the second group received a bilateral implantation of the Comfort IOL...
July 17, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28717577/temporal-multiplexing-to-simulate-multifocal-intraocular-lenses-theoretical-considerations
#17
Vyas Akondi, Carlos Dorronsoro, Enrique Gambra, Susana Marcos
Fast tunable lenses allow an effective design of a portable simultaneous vision simulator (SimVis) of multifocal corrections. A novel method of evaluating the temporal profile of a tunable lens in simulating different multifocal intraocular lenses (M-IOLs) is presented. The proposed method involves the characteristic fitting of the through-focus (TF) optical quality of the multifocal component of a given M-IOL to a linear combination of TF optical quality of monofocal lenses viable with a tunable lens. Three different types of M-IOL designs are tested, namely: segmented refractive, diffractive and refractive extended depth of focus...
July 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28665477/visual-acuity-and-image-quality-in-5-diffractive-intraocular-lenses
#18
Genís Cardona, Fidel Vega, Miguel A Gil, Consuelo Varón, José A Buil, María S Millán
PURPOSE: To compare objective image quality at distant, intermediate, and near foci with the corresponding visual acuity (VA) in patients symmetrically implanted with 5 different diffractive multifocal intraocular lenses (IOLs) (ReSTOR SV25T0, Tecnis ZKB00, Tecnis ZLB00, AT LISA 809, and AT LISA Tri 839MP) and a monofocal lens (Tecnis ZA9003) 3 months after cataract intervention. METHODS: Objective image quality, measured as the area under the modulation transfer function curve (AMTF), was tested in vitro in an eye model...
June 26, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28662629/in-vitro-optical-quality-measurements-of-three-intraocular-lens-models-having-identical-platform
#19
Hyeck Soo Son, Tamer Tandogan, Stephanie Liebing, Patrick Merz, Chul Young Choi, Ramin Khoramnia, Gerd U Auffarth
BACKGROUND: With recent advances in technology and introduction of new intraocular lens (IOL) models, surgeons today have the opportunity to choose from various optical designs, which can influence the postoperative quality of vision. In our laboratory study, we compared the optical quality of three different IOLs that use the identical platform and are produced by the same manufacturer. The study included two diffractive multifocal IOLs, a bifocal and a trifocal one, as well as a monofocal IOL...
June 29, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28661569/effect-of-active-evaluation-on-the-detection-of-negative-dysphotopsia-after-sequential-cataract-surgery-discrepancy-between-incidences-of-unsolicited-and-solicited-complaints
#20
Natalia Y Makhotkina, Marjan D Nijkamp, Tos T J M Berendschot, Bart van den Borne, Rudy M M A Nuijts
PURPOSE: To evaluate the incidence of negative dysphotopsia after sequential cataract surgery. METHODS: Retrospective cohort study. The incidence of negative dysphotopsia was assessed by retrospective reviewing of medical records and interviews with patients between 2 and 4 months after sequential cataract surgery. Inclusion criteria were uncomplicated surgery, postoperative corrected distance visual acuity (CDVA) ≥20/25 Snellen and the absence of ocular comorbidity...
June 29, 2017: Acta Ophthalmologica
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