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Intraocular lenses

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https://www.readbyqxmd.com/read/28435215/a-comparison-of-mesopic-visual-acuity-and-objective-visual-quality-following-cataract-surgery-with-hydrophobic-acrylic-intraocular-lenses
#1
George Hh Beiko, Miso Gostimir, Lila Haj-Ahmad
PURPOSE: To evaluate mesopic visual acuity and visual quality as measured by objective scatter index (OSI) in pseudophakic eyes with long-term follow-up after implantation of hydrophobic acrylic lenses made from two different lens materials. SETTING: This study was carried out in a private clinic. DESIGN: This study was an observational cohort study. METHODS: This pilot study included 181 eyes of 136 patients who had undergone cataract surgery with implantation of monofocal hydrophobic acrylic intraocular lenses (IOLs), either Alcon AcrySof (82 eyes) or Abbott Medical Optics' Tecnis (99 eyes)...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28433446/functional-magnetic-resonance-imaging-to-assess-the-neurobehavioral-impact-of-dysphotopsia-with-multifocal-intraocular-lenses
#2
Andreia M Rosa, Ângela C Miranda, Miguel Patrício, Colm McAlinden, Fátima L Silva, Joaquim N Murta, Miguel Castelo-Branco
PURPOSE: To investigate the association between dysphotopsia and neural responses in visual and higher-level cortical regions in patients who recently received multifocal intraocular lens (IOL) implants. DESIGN: Cross-sectional study. PARTICIPANTS: Thirty patients 3 to 4 weeks after bilateral cataract surgery with diffractive IOL implantation and 15 age- and gender-matched control subjects. METHODS: Functional magnetic resonance imaging (fMRI) was performed when participants viewed low-contrast grating stimuli...
April 19, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28430328/outcome-of-various-hydrophobic-acrylic-intraocular-lens-implantations-in-children-with-congenital-cataract
#3
Jaspreet Sukhija, Savleen Kaur, Jagat Ram, Sonam Yangzes, Siddharth Madan, Jitender Jinagal
PURPOSE: To evaluate performance of different intraocular lenses (IOLs) after cataract surgery in children aged less than 2 years with regards to rates of visual axis opacification (VAO). METHODS: This was a retrospective chart review of children <2 years of age undergoing cataract surgery with primary posterior capsulotomy, anterior vitrectomy, and IOL over a period of 5 years with minimum follow-up of 1 year at a tertiary care institute. Children with microphthalmos, persistent fetal vasculature, traumatic cataract, aphakia, secondary IOLs, or any other coexisting ocular disease were excluded...
April 13, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28428923/the-long-term-outcome-of-the-management-of-the-posterior-capsule-in-pseudophakic-children
#4
Malcolm R Ing
This is a long term study of the treatment of the posterior lens capsule in the management of bilateral cataract extraction and insertion of 42 intraocular lenses in 21 children. The purpose of the current study was to compare the long-term outcome of eyes treated by the two different methods of surgery of the posterior lens capsule in bilateral cataract and intraocular lens implantation in children. The author performed an independent ocular exam on the children selected from a consecutive series at 4 different institutions, followed for a minimum of 5 years...
April 2017: Hawai'i Journal of Medicine & Public Health: a Journal of Asia Pacific Medicine & Public Health
https://www.readbyqxmd.com/read/28422087/clinical-comparison-of-patient-outcomes-following-implantation-of-trifocal-or-bifocal-intraocular-lenses-a-systematic-review-and-meta-analysis
#5
Zeren Shen, Yuchen Lin, Yanan Zhu, Xin Liu, Jie Yan, Ke Yao
To assess the visual effects of trifocal intraocular lenses (IOLs) compared to bifocal IOLs in cataract surgery, a meta-analysis of prospective comparative clinical trials (including 4 randomized controlled trials and 4 cohorts) was conducted. The defocus curves showed a better distance-corrected intermediate visual acuity (VA) for the trifocal group (MD -0.07; 95% CI, -0.10 to -0.05; p < 0.00001), while the VA outcomes showed no significant difference in distance VA (MD -0.03; 95% CI, -0.06 to 0.01; p = 0...
March 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28419129/factors-related-to-axial-length-elongation-and-myopia-progression-in-orthokeratology-practice
#6
Bingjie Wang, Rajeev K Naidu, Xiaomei Qu
PURPOSE: To investigate which baseline factors are predictive for axial length growth over an average period of 2.5 years in a group of children wearing orthokeratology (OK) contact lenses. METHODS: In this retrospective study, the clinical records of 249 new OK wearers between January 2012 and December 2013 from the contact lens clinic at the Eye and ENT Hospital of Fudan University were reviewed. The primary outcome measure was axial length change from baseline to the time of review (July-August 2015)...
2017: PloS One
https://www.readbyqxmd.com/read/28415418/uv-assisted-treatment-on-hydrophobic-acrylic-iols-anterior-surface-with-methacryloyloxyethyl-phosphorylcholine-reducing-inflammation-and-maintaining-low-posterior-capsular-opacification-properties
#7
Xiaodan Huang, Chenqi Luo, Lin Lin, Li Zhang, Heyi Li, Ke Yao, Zhikang Xu
In order to enhance the surface biocompatibility of hydrophobic acrylic intraocular lenses (IOLs), the anterior surface was modified through graft polymerization with methacryloyloxyethyl phosphorylcholine (MPC) initiated by ultraviolet radiation. Chemical changes on the IOL surface were characterised by X-ray photoelectron spectroscopy (XPS) to confirm the covalent binding of MPC. Field emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM) analysis were used to characterise the morphological changes to the IOL surface...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28412796/-multiple-issues-in-multifocal-intraocular-lens
#8
Z H Li, Z Ye, Y Huang
The occurrence of multifocal intraocular lens (MIOL) is known as an important period in the development of cataract surgery, which can provide a simultaneous vision without the use of spectacles or contact lenses. However, in the current stage, MIOL implantation may also lead to decreased visual acuity and increased risk of photic phenomena, thus in some instance a second procedure to exchange the MIOL is necessary. Optimizing visual outcomes of MIOL implantation and controlling adverse effects has become the focus for ophthalmologists...
April 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28410727/transection-and-explantation-of-intraocular-lenses-using-femtosecond-lasers
#9
Chandra Bala, Ushasree Pattamatta, Thomas Chan, Jeffrey Shi, Kerrie Meades
We present 2 cases in which a femtosecond laser was used in vitro to transect hydrophilic acrylic intraocular lenses (IOLs). At 8 μJ with 3 μm spot separation and 6 μm line separation, no charring occurred and there was no increase in total organic carbon. In vivo, the IOLs were successfully transected in the capsular bag (Case 1, opaque IOL) and the sulcus (Case 2, subluxated IOL post-pneumatic displacement of submacular hemorrhage) and explanted through a clear corneal incision (∼3.0 mm). At 3 months, in Case 1, the corrected distance visual acuity (CDVA) improved from 6/24 to 6/5, astigmatism improved by 0...
March 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28410715/comparison-of-astigmatic-prediction-errors-associated-with-new-calculation-methods-for-toric-intraocular-lenses
#10
Tiago B Ferreira, Paulo Ribeiro, Filomena J Ribeiro, João G O'Neill
PURPOSE: To compare the prediction errors in residual astigmatism associated with new calculation methods for toric intraocular lenses (IOLs). SETTING: Hospital da Luz, Lisbon, Portugal. DESIGN: Retrospective case series. METHODS: In eyes having cataract surgery with toric IOL implantation (Acrysof IQ), the predicted residual astigmatism by each calculation method was compared with the manifest refractive astigmatism...
March 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28410712/swept-source-optical-coherence-tomography-to-screen-for-macular-pathology-in-eyes-having-routine-cataract-surgery
#11
Sidra Zafar, M A Rehman Siddiqui, Rida Shahzad, Masroor H Shahzad
PURPOSE: To determine the incremental benefit of swept-source optical coherence tomography (SS-OCT) in identifying occult macular disease preoperatively in patients scheduled for routine cataract surgery. SETTING: Shahzad Eye Hospital, Karachi, Pakistan. DESIGN: Prospective case series. METHODS: Preoperative SS-OCT scans were performed in all patients scheduled to have cataract surgery between January and March 2016...
March 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28410283/postoperative-evaluation-of-bilateral-reading-performance-with-two-intraocular-lenses-twelve-month-results
#12
Semra Akkaya Turhan, Ebru Toker
PURPOSE: The aim of this study was to compare the bilateral reading performances within the first 12 months after the implantation of two intraocular lens (IOL) models. METHODS: The patients involved in this research had bilateral phacoemulsification and implantation of the Acriva Reviol MFM 613 IOL (group 1) or AcrySof ReSTOR SN6AD1 apodized multifocal IOL (group 2). The bilateral reading performance was evaluated preoperatively and postoperatively using the MNREAD acuity charts...
April 12, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28405479/comparison-of-biofilm-formation-capacities-of-two-clinical-isolates-of-staphylococcus-epidermidis-with-and-without-icaa-and-icad-genes-on-intraocular-lenses
#13
Sertaç Argun Kıvanç, Merih Kıvanç, Volkan Kılıç, Gülay Güllülü, Ahmet Tuncer Özmen
OBJECTIVES: To compare biofilm formations of two Staphylococcus epidermidis (S. epidermidis) isolates with known biofilm formation capacities on four different intraocular lenses (IOL) that have not been studied before. MATERIALS AND METHODS: Two isolates obtained from ocular surfaces and identified in previous studies and stored at -86 °C in 15% glycerol in the microbiology laboratory of the Anadolu University Department of Biology were purified and used in the study...
April 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28380650/-evaluation-of-postoperative-astigmatism-correction-and-postoperative-rotational-stability-of-two-toric-intraocular-lenses
#14
M Grohlich, K Miháltz, M Lasta, B Weingessel, V Vécsei-Marlovits
Background The aim of this retrospective study was to evaluate the rotational stability and the refractive outcome of two different toric IOLs. Methods This study included 41 eyes with corneal astigmatism greater than 1.5 diopters (D). All patients underwent surgery in the Department of Ophthalmology at Hietzing Hospital between 2010 and 2013. The study lenses were the Alcon AcrySof IQ Toric IOL and the Abbott Tecnis Toric Aspheric IOL. Measurements of corneal topography and aberrations were performed with the HOYA iTrace™...
April 5, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28371401/glistenings-anterior-posterior-capsular-opacification-and-incidence-of-nd-yag-laser-treatments-with-two-aspheric-hydrophobic-acrylic-intraocular-lenses-a-long-term-intra-individual-study
#15
Björn Johansson
PURPOSE: To compare two hydrophobic acrylic intraocular lenses (IOLs) regarding long-term anterior/posterior capsular opacification (ACO/PCO) development and need for neodymium:Yttrium-Aluminum-Garnet (Nd:YAG) laser treatment due to visually disturbing PCO, and to study development of glistenings in the IOL materials. METHODS: In a prospective, randomized, intra-individual, comparative trial, 50 cataract patients received either an AcrySof IQ(®) SN60WF (Alcon, Fort Worth, TX, USA) or a Tecnis(®) ZCB00 (Abbott Medical Optics, Santa Ana, CA, USA) IOL in the first operated eye, and the second eye received the IOL type not implanted in the first eye...
March 30, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28366683/multifocal-intraocular-lenses-an-overview
#16
REVIEW
Jorge Alio, Ana B Plaza-Puche, Roberto Férnandez-Buenaga, Joseph Pikkel, Miguel Maldonado
Multifocal intraocular lenses (MfIOLs) are increasingly used in the management of pseudophakic presbyopia. After MfIOL implantation, most patients do not need spectacles or contact lenses and are pleased with the result. Complications, however, may affect the patient's quality of life and level of satisfaction. Common problems with multifocal lenses are blurred vision and photic phenomena associated with residual ammetropia, posterior capsule opacification, large pupil size, wavefront anomalies, dry eye, and lens decentration...
March 30, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28366378/postoperative-rotation-of-supplementary-sulcus-supported-toric-intraocular-lenses
#17
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
https://www.readbyqxmd.com/read/28366372/rotational-stability-of-2-intraocular-lenses-with-an-identical-design-and-different-materials
#18
Petra Draschl, Nino Hirnschall, Nikolaus Luft, Sandra Schuschitz, Jörg Wiesinger, Karl Rigal, Oliver Findl
PURPOSE: To evaluate the rotational stability of nontoric intraocular lenses (IOLs) of the same design and different materials. SETTING: Vienna Institute for Research in Ocular Surgery, Department of Ophthalmology, Hanusch Hospital, Vienna, Austria. DESIGN: Prospective randomized case series. METHODS: This study included cataract patients with a corneal astigmatism of less than 1.75 diopters measured with the IOLMaster 500...
February 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28366371/intraindividual-comparison-of-capsule-behavior-of-2-hydrophobic-acrylic-intraocular-lenses-during-a-5-year-follow-up
#19
Guenal Kahraman, Clara Ferdinaro, Barbara Wetzel, Clemens Bernhart, Franz Prager, Michael Amon
PURPOSE: To evaluate and compare the 5-year postoperative anterior (ACO) and posterior capsule opacification (PCO), the occurrence of glistenings, and the level of anterior capsule retraction after implantation of 2 designs of 1-piece hydrophobic acrylic IOLs. SETTING: Hospital St. John, Vienna, Austria. DESIGN: Randomized controlled prospective case series. METHODS: Patients had an Acrysof SA60AT IOL (Group A) implanted in 1 eye and a Tecnis ZCB00 IOL (Group B) implanted in the fellow eye...
February 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28358216/evaluation-of-the-safety-and-tolerability-of-conjunctival-ring-for-posterior-segment-of-the-eye
#20
Satoshi Kinoshita, Takeshi Ohguchi, Kousuke Noda, Miyuki Murata, Shin-Ichi Yasueda, Haruka Obata, Toru Matsunaga, Tsutomu Fukushima, Atsuhiro Kanda, Susumu Ishida
PURPOSE: To evaluate the safety and tolerability of conjunctival rings (CRs), a novel device for drug delivery to the posterior segment of the eye. METHODS: In animal studies, CRs containing 5% dexamethasone sodium phosphate (DSP) or vehicle solution were placed on the right and left eyes of C57BL/6J mice, respectively. Contact lenses (CLs) containing vehicle solution were used as a control. Twenty-four hours after placement of the CRs, corneal fluorescein staining was graded based on the McDonald-Shadduck scoring system, ranging from 0 to 4...
March 30, 2017: Current Eye Research
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