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Intraocular lenses

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https://www.readbyqxmd.com/read/28196497/comparison-of-visual-outcomes-spectacles-dependence-and-patient-satisfaction-of-multifocal-and-accommodative-intraocular-lenses-innovative-perspectives-for-maximal-refractive-oriented-cataract-surgery
#1
Raffaele Nuzzi, Federico Tridico
BACKGROUND: The aim of this study was to evaluate visual outcomes for different working distances (far, 60 cm and 33 cm) and impact on vision quality of multifocal IOLs AcrySof ResTOR SN6AD1 and SN6AD3 (Alcon, Inc., Fort Worth, Texas, USA) as well as REVIEW FIL611PV multifocal and OPTOFLEX FIL618 accommodative IOLs (Soleko, Ltd., Rome, Italy) in patients undergoing bilateral phacoemulsification. METHODS: In this observational prospective study 63 patients undergoing binocular cataract surgery were divided into four groups for implantation of one of the IOLs under evaluation...
February 14, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28178942/in-vitro-comparative-optical-bench-analysis-of-a-spherical-and-aspheric-optic-design-of-the-same-iol-model
#2
Tamer Tandogan, Gerd U Auffarth, Chul Y Choi, Stephanie Liebing, Christian Mayer, Ramin Khoramnia
BACKGROUND: To analyse objective optical properties of the spherical and aspheric design of the same intraocular lens (IOL) model using optical bench analysis. METHODS: This study entailed a comparative analysis of 10 spherical C-flex 570 C and 10 aspheric C-flex 970 C IOLs (Rayner Intraocular Lenses Ltd., Hove, UK) of 26 diopters [D] using an optical bench (OptiSpheric, Trioptics, Germany). In all lenses, we evaluated the modulation transfer function (MTF) at 50 lp/mm and 100 lp/mm and the Strehl Ratio using a 3-mm (photopic) and 4...
February 8, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28165609/comparison-of-visual-outcomes-after-bilateral-implantation-of-extended-range-of-vision-and-trifocal-intraocular-lenses
#3
Ramón Ruiz-Mesa, Antonio Abengózar-Vela, Ana Aramburu, María Ruiz-Santos
PURPOSE: To compare visual outcomes after cataract surgery with bilateral implantation of 2 intraocular lenses (IOLs): extended range of vision and trifocal. METHODS: Each group of this prospective study comprised 40 eyes (20 patients). Phacoemulsification followed by bilateral implantation of a FineVision IOL (group 1) or a Symfony IOL (group 2) was performed. The following outcomes were assessed up to 1 year postoperatively: binocular uncorrected distance visual acuity (UDVA), binocular uncorrected intermediate visual acuity (UIVA) at 60 cm, binocular uncorrected near visual acuity (UNVA) at 40 cm, spherical equivalent (SE) refraction, defocus curves, mesopic and photopic contrast sensitivity, halometry, posterior capsule opacification (PCO), and responses to a patient questionnaire...
January 28, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28161802/influence-of-across-pupil-sutures-on-the-optical-quality-of-intraocular-lenses
#4
Chang Rae Rho, Min-Ji Kim, Choun-Ki Joo
PURPOSE: In cases of pupillary capture after previous transscleral fixation of an intraocular lens (IOL), an across-pupil suture technique is sometimes used to stabilize the IOL. We investigated the optical effects of 10-0 polypropylene sutures placed across the pupil. METHODS: Optical performance was evaluated using the optical bench metrology system, and a single-piece IOL was used in an optical bench system consisting of a model eye, a high-resolution Hartmann-Shack wave front sensor, and an image capturing device with 2...
February 4, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28149789/prevalence-of-pseudoexfoliation-syndrome-and-its-association-with-ocular-and-systemic-diseases-in-eskisehir-turkey
#5
Nilgun Yildirim, Erdogan Yasar, Huseyin Gursoy, Ertugrul Colak
AIM: To investigate the prevalence of pseudoexfoliation syndrome (PEX) and its associations with ocular and systemic diseases in a population sample aged over 40y. METHODS: A total of 2356 subjects were randomly chosen for the sample population based on the database of the Turkish Statistical Agency in Eskisehir. Of the invited 2356 subjects, 2017 subjects participated, out of which 2009 were eligible for the study. Systemic diseases, drug use, smoking and body mass index were assessed using questionnaires...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28112126/the-posterior-iris-claw-lens-outcome-study-6-month-follow-up
#6
Nana Madhukar Jare, Ashwini Ganesh Kesari, Salil S Gadkari, Madan D Deshpande
PURPOSE: The purpose of this study was to evaluate functional and anatomical outcomes of posterior iris-claw intraocular lens (IOL) implant for correction of aphakia in eyes with inadequate capsular support. MATERIALS AND METHODS: Prospective case series of 108 aphakic eyes with inadequate capsular support which underwent posterior iris-claw IOL with a 6-month follow-up period was conducted. The cases belonged to two clinical settings: elective secondary implantation and those with intraoperative posterior dislocation of cataractous lens or IOL...
December 2016: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28110952/outbreak-of-subacute-onset-toxic-anterior-segment-syndrome-associated-with-single-piece-acrylic-intraocular-lenses
#7
Tetsuro Oshika, Shuichiro Eguchi, Hiroshi Goto, Yuichi Ohashi
PURPOSE: To report the results of a clinical investigation after an outbreak of subacute-onset toxic anterior segment syndrome (TASS) after implantation of single-piece acrylic intraocular lenses (IOLs), which then were recalled voluntarily from the market. DESIGN: Retrospective, multicenter, observational case series. PARTICIPANTS: Cases reported to the manufacturer from January 2015 through March 2016 of unusual ocular inflammation after cataract surgery using AcrySof ReSTOR, ReSTOR toric, or AcrySof IQ toric SN6AT6-9 IOLs (Alcon Laboratories, Inc...
January 19, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28106237/reading-and-quality-of-life-differences-between-tecnis-zcb00-monofocal-and-tecnis-zmb00-multifocal-intraocular-lenses
#8
Francisco de Asís Bartol-Puyal, Paula Talavero, Galadriel Giménez, Irene Altemir, José M Larrosa, Vicente Polo, Luis E Pablo
PURPOSE: To compare the NEI-RQL-42 quality of life questionnaire and the Radner Vissum reading test outcomes after bilateral cataract surgery with implantation of Tecnis ZCB00 monofocal and Tecnis ZMB00 multifocal intraocular lens (IOL). METHODS: Forty-two eyes of 21 patients who had phacoemulsification were implanted with Tecnis ZCB00 IOL and 82 eyes of 41 patients were implanted with Tecnis ZMB00 IOL. They answered the NEI-RQL-42 questionnaire before cataract surgery and 3 months after it...
January 2, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28062928/evaluation-of-paraxial-forward-scattering-from-intraocular-lens-with-increased-surface-light-scattering-using-goniophotometry-and-hartmann-shack-wavefront-aberrometry
#9
Keiichiro Minami, Yoko Maruyama, Toshifumi Mihashi, Kazunori Miyata, Tetsuro Oshika
PURPOSE: To evaluate the influence of increases in light scattering on intraocular lens (IOL) surfaces on paraxial forward scattering using goniophotometry and Hartmann-Shack wavefront aberrometry. METHODS: Surface light scattering was reproduced experimentally by acceleratedly aging 4 intraocular lenses by 0, 3, 5, and 10 years each. Light scattering from both IOL surfaces was measured using Scheimpflug photography. The paraxial forward scattering from the aged IOLs was measured using a goniophotometer with a halogen light source (wavelength: 350-850 nm) and telecentric optics, and changes in the maximum intensity and full width at 10% of maximum intensity (FW10%) were evaluated...
January 6, 2017: Japanese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28058149/surgical-indications-and-clinical-results-of-patients-with-exchanged-intraocular-lenses-in-a-tertiary-eye-hospital
#10
Sevim Kavuncu, Aslıhan Esra Omay, Mehmet Hakan Tırhış, Pelin Yılmazbaş
OBJECTIVES: To evaluate the demographics, surgical indications and clinical results of patients with repositioned or explanted intraocular lens (IOL) in a tertiary referral eye hospital. MATERIALS AND METHODS: Forty-eight eyes of 48 patients that underwent surgery to exchange or reposition the IOL at Ulucanlar Eye Training and Research Hospital between 2009 and 2013 were included in the study. Medical records of patients were evaluated for surgical indications, time elapsed since initial operation, preoperative and postoperative best corrected distance visual acuity and the presence of ocular disease...
August 2016: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28053527/fabrication-of-nonfouling-bactericidal-and-bacteria-corpse-release-multifunctional-surface-through-surface-initiated-raft-polymerization
#11
Bailiang Wang, Zi Ye, Yihong Tang, Yuemei Han, Quankui Lin, Huihua Liu, Hao Chen, Kaihui Nan
Infections after surgery or endophthalmitis are potentially blinding complications caused by bacterial adhesion and subsequent biofilm formation on the intraocular lens. Neither single-function anti-adhesion surface nor contacting killing surface can exhibit ideal antibacterial function. In this work, a novel (2-(dimethylamino)-ethyl methacrylate-co-2-methacryloyloxyethyl phosphorylcholine) (p (DMAEMA-co-MPC)) brush was synthesized by "grafting from" method through reversible-addition fragmentation chain transfer polymerization...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28042714/current-status-of-iol-implantation-in-pediatric-eyes-an-update
#12
Abhay R Vasavada, Vaishali Vasavada
Pediatric cataracts are a huge problem worldwide, and with improving techniques and technology, the surgical treatment and postoperative visual rehabilitation are improving. Despite intraocular lenses(IOLs) being the standard of care for adult cataract surgery, this issue is still somewhat controversial, particularly in young children and infants due to lack of unequivocal evidence. This review therefore summarises the findings from recent studies on the aspect of IOL implantation in pediatric eyes. Areas covered: An extensive literature search was undertaken for published articles on congenital/developmental pediatric cataracts, and IOL implantation, where literature pertinent to traumatic and subluxated cataracts was not included in the review...
January 2, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28013392/the-clinical-depth-of-field-achievable-with-trifocal-and-monofocal-intraocular-lenses-theoretical-considerations-and-proof-of-concept-clinical-results
#13
Ante Barišić, Sudi Patel, Nikica Gabric, Claes G Feinbaum
BACKGROUND: To estimate the depth of field (DOF) achievable with multi-and monofocal intraocular lenses (IOLs) and compare with actual measurements of DOF in cases implanted with a trifocal IOL and biconvex monofocal IOL METHODS: I) Computer simulations were produced to describe the relationship between DOF, pupil size, preoperative ametropia, and retinal blur tolerance limit for a model eye implanted with either multi- or monofocal IOLs. II) Monocular DOF and pupil size were measured under distance viewing conditions between 3 and 6 months postoperative following uneventful cataract surgery...
February 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28007103/comparison-of-the-visual-performance-and-quality-of-vision-with-combined-symmetrical-inferonasal-near-addition-versus-inferonasal-and-superotemporal-placement-of-rotationally-asymmetric-refractive-multifocal-intraocular-lenses
#14
Richard N McNeely, Eric Pazo, Andrew Spence, Olivier Richoz, M Andrew Nesbit, Tara C B Moore, Jonathan E Moore
PURPOSE: To compare the postoperative quality of vision between different bilateral placements of near segments of rotationally asymmetric refractive multifocal intraocular lenses (IOLs) and to determine how this affects visual performance. SETTING: Cathedral Eye Clinic, Belfast, Northern Ireland, United Kingdom. DESIGN: Retrospective comparative case series. METHODS: The study enrolled consecutive patients having refractive lens exchange and implantation of rotationally asymmetric multifocal IOLs...
December 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28007102/suppression-of-surface-light-scattering-in-intraocular-lenses-manufactured-using-an-improved-production-process
#15
Kazunori Miyata, Miyuki Ogata, Masato Honbo, Yosai Mori, Keiichiro Minami
PURPOSE: To clinically examine the suppression of surface light scattering after implantation of an intraocular lens (IOL) manufactured using an improved production process. SETTING: Miyata Eye Hospital, Miyazaki, Japan. DESIGN: Comparative case series. METHODS: The prospective case series comprised eyes receiving hydrophobic acrylic Acrysof SN60WF IOLs that were manufactured before and after the improvement. Light scattering on the anterior IOL surface was examined up to 3 years postoperatively using an EAS-1000 anterior segment analyzer...
December 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28007100/iris-fixation-of-posterior-chamber-intraocular-lenses
#16
Alireza Yazdani-Abyaneh, Ali R Djalilian, Masoud Aghsaei Fard
: We introduce a technique for iris fixation of a posterior chamber intraocular lens (IOL) in which most of the procedure is done outside the eye. This minimizes intraocular manipulation, maximizes corneal endothelial preservation, and avoids the risk for IOL drop into the vitreous cavity intraoperatively. The IOL is fixated to the most peripheral part of the iris, resulting in a rounder pupil. Sutures are placed at exact positions on the haptics, resulting in a well-centered IOL. FINANCIAL DISCLOSURE: None of the authors has a financial or proprietary interest in any material or method mentioned...
December 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28002107/astigmatism-correction-with-toric-intraocular-lenses-in-descemet-membrane-endothelial-keratoplasty-triple-procedures
#17
Hideaki Yokogawa, P James Sanchez, Zachary M Mayko, Michael D Straiko, Mark A Terry
PURPOSE: To report the clinical efficacy of astigmatism correction with toric intraocular lenses (IOLs) in patients undergoing the Descemet membrane endothelial keratoplasty (DMEK) triple procedure and to evaluate the accuracy of the correction. METHODS: Fifteen eyes of 10 patients who received cataract extraction, toric IOL placement, and DMEK surgery for Fuchs corneal dystrophy and cataracts were evaluated. The cylinder power of toric IOLs was determined by an online toric calculator with keratoscopy measurements obtained using Scheimpflug corneal imaging...
March 2017: Cornea
https://www.readbyqxmd.com/read/28001465/posterior-capsule-opacification-and-nd-yag-rates-with-two-acrylic-intraocular-lenses-after-age-related-cataract-treatment-three-year-results
#18
Miro Kalauz, Sanja Masnec, Rajko Kordić, Tomislav Kuzman, Sania Vidas, Ivan Škegro, Sonja Jandroković, Sanja Perić
OBJECTIVE: To compare the incidence and intensity of posterior capsule opacification (PCO) between two intraocular lenses (IOLs) over three years. METHODS: Eighty-three patients underwent cataract surgery with implantation of Acreos Adapt AO or Acrysof SA60AT. PCO values were assessed using a photographic image analysis system (EPCO 2000) and the amount of PCO at the slit lamp. RESULTS: Mean PCO score was 2.78 ± 1.55 for the Acreos Adapt AO and 2...
December 21, 2016: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/27994811/phakic-intraocular-lenses-and-their-special-indications
#19
REVIEW
Roberto Pineda, Tulika Chauhan
Phakic intraocular lenses revolutionize refractive surgery and continue to serve as an excellent option for vision correction in patients who are not ideal candidates for laser vision correction. This article will review special indications of phakic intraocular lenses in the clinical practice.
October 2016: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/27984546/scleral-suture-fixation-technique-for-one-piece-acrylic-intraocular-lens
#20
Ella H Leung, Amir Mohsenin, William E Smiddy
PURPOSE: To apply a previously published scleral fixation technique to secure one-piece acrylic intraocular lenses (IOLs) to the sclera. METHODS: Retrospective, consecutive, noncomparative case series. RESULTS: All patients (16 eyes of 15 patients) who underwent scleral fixation of 1-piece acrylic IOLs using the loop method from 2014 to 2016 were included. The mean follow-up was 8.1 months. Repositioning of dislocated 1-piece acrylic IOLs was performed in 8 eyes, a primary implantation in 5 eyes, and IOL exchange in 3 eyes...
December 14, 2016: Retinal Cases & Brief Reports
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