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https://www.readbyqxmd.com/read/28923587/visual-performance-of-a-quadrifocal-trifocal-intraocular-lens-following-removal-of-the-crystalline-lens
#1
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/28920158/comparison-of-outcomes-of-scleral-fixation-with-and-without-pars-plana-vitrectomy-for-the-treatment-of-dislocated-intraocular-lens
#2
Seung Yong Choi, You Sook Hwang, Mirinae Kim, Soon Il Choi, Young-Hoon Park
PURPOSE: To investigate the surgical outcomes of scleral fixation with either pars plana vitrectomy (ppV) or anterior vitrectomy (AV) for the treatment of dislocated intraocular lens (IOL). METHODS: By retrospective review of electronic medical records, patients with in-the-bag spontaneous IOL dislocation who underwent IOL exchange with scleral fixation were included and grouped according to the vitrectomy method: ppV (group 1) and AV (group 2). Post-operative surgical outcomes including visual acuity (log MAR), spherical equivalent, and surgically induced astigmatism (SIA) and complications were investigated and analyzed...
September 17, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28917413/biocompatibility-of-intraocular-lens-power-adjustment-using-a-femtosecond-laser-in-a-rabbit-model
#3
Liliana Werner, Jason Ludlow, Jason Nguyen, Joah Aliancy, Larry Ha, Bryan Masino, Sean Enright, Ray K Alley, Ruth Sahler, Nick Mamalis
PURPOSE: To evaluate the biocompatibility (uveal and capsular) of intraocular lens (IOL) power adjustment by a femtosecond laser obtained through increased hydrophilicity of targeted areas within the optic, creating the ability to build a refractive-index shaping lens within an existing IOL. SETTING: John A. Moran Eye Center, University of Utah, Salt Lake City, Utah, USA. DESIGN: Experimental study. METHODS: Six rabbits had phacoemulsification with bilateral implantation of a commercially available hydrophobic acrylic IOL...
August 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28917408/refractive-outcome-comparison-between-vitreomacular-interface-disorders-after-phacovitrectomy
#4
Zeynep Eylül Ercan, İmren Akkoyun, Eylem Yaman Pınarcı, Gürsel Yılmaz, Hülya Topçu
PURPOSE: To compare the refractive accuracy of intraocular lens (IOL) power calculations between patients with vitreomacular interface disorders who had phacovitrectomy for vitreomacular traction (VMT), epiretinal membranes (ERM), and macular holes. SETTING: Baskent University Department of Ophthalmology, Ankara, Turkey. DESIGN: Retrospective case series. METHODS: Refraction results 8 weeks postoperatively were compared between phacovitrectomy (3 study groups comprising eyes with VMT with intrafoveal pseudocysts, ERM, or medium-to-large macular holes) and phacoemulsification (control group comprising eyes having phacoemulsification only)...
August 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28917407/corneal-topography-and-keratometry-changes-after-glued-intraocular-lens-implantation
#5
Dhivya Ashok Kumar, Harspreet Kaur, Amar Agarwal, Sajitha Selvaraj, Sathish Kumar Pandian, Vamsi Chintalpati
PURPOSE: To analyze the alterations in corneal topography and keratometry (K) after glued transscleral-fixated intraocular lens (IOL) implantation. SETTING: Dr. Agarwal's Eye Hospital, Chennai, India. DESIGN: Prospective case series. METHODS: Eyes having glued IOL implantation for aphakia or subluxated lens (>180 degrees) were included. Preoperative autorefractometer and corneal topography was performed. Intraoperative parameters, namely the type, position, and incision size, flap position, and number of sutures were noted...
August 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28917400/visual-quality-and-performance-comparison-between-2-refractive-rotationally-asymmetric-multifocal-intraocular-lenses
#6
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/28917399/variability-in-angle-%C3%AE%C2%BA-and-its-influence-on%C3%A2-higher-order-aberrations-in%C3%A2-pseudophakic-eyes
#7
Annette Harrer, Nino Hirnschall, Juan Tabernero, Pablo Artal, Petra Draschl, Sophie Maedel, Oliver Findl
PURPOSE: To observe the variability in angle κ in pseudophakic patients and assess its correlation with optical biometry measurements and higher-order aberrations (HOAs). SETTING: Hanusch Hospital, Vienna, Austria. DESIGN: Prospective case series. METHODS: This study included patients who had cataract surgery 3 months to 1 year before study recruitment. In all cases, Purkinje meter images were taken. In addition, partial coherence interferometry measurement (IOLMaster) of the axial intraocular lens (IOL) position was performed...
August 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28917397/evaluation-of-postoperative-toric-intraocular-lens-alignment-with-anterior-segment-optical-coherence-tomography
#8
Andrea Lucisano, Marco Ferrise, Marco Balestrieri, Massimo Busin, Vincenzo Scorcia
We describe the use of a simple tool to evaluate the postoperative alignment of toric intraocular lenses (IOLs). The entire anterior segment is scanned using anterior segment optical coherence tomography and analyzed with an internal dedicated tool. A topographic map is displayed along with an anterior segment image, including a linear axis marker centered on the corneal apex. The marker can be rotated until it is aligned with the line connecting the IOL marking dots, precisely reproducing the IOL astigmatic axis, which is measured in angle degrees...
August 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28917396/modified-bean-shaped-ring-segments-for-suture-fixation-of-the-bag-in-the-lens-intraocular-implant
#9
Sorcha Ní Dhubhghaill, Anca Cristina Dogaroiu, Nadia Zakaria, Marie-José Tassignon
We describe a surgical technique for secondary stabilization of a bag-in-the-lens intraocular lens (BIL IOL) using 2 modified bean-shaped ring segments in cases of zonular dehiscence associated with pseudophakodonesis. The first modified bean segment is anchored in the sulcus with a suture to the sclera in the area of maximum zonular dehiscence, and the second segment is implanted in the opposite sulcus area. Both segments are placed in the BIL IOL interhaptic groove. The segments stabilize and center the BIL IOL by creating an artificial zonule that provides the necessary extra support for the IOL...
August 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28914688/femtosecond-laser-assisted-versus-phacoemulsification-for-cataract-extraction-and-intraocular-lens-implantation-clinical-outcomes-review
#10
Shaun Y Ewe, Robin G Abell, Brendan J Vote
PURPOSE OF REVIEW: Femtosecond laser-assisted cataract surgery (FLACS) has gained popularity in recent years with the new technology suggesting potential improvements in clinical and safety outcomes over conventional phacoemulsification cataract surgery (PCS). A decade since the advent of FLACS has given time and experience for laser technology to develop in maturity, and better quality evidence to become available. This review evaluates current evidence on the clinical and safety outcomes for FLACS in comparison to PCS...
September 12, 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28913996/intraocular-lens-power-calculation-after-refractive-surgery-a-comparative-analysis-of-accuracy-and-predictability
#11
Byeong Soo Kang, Jeong Mo Han, Joo Youn Oh, Mee Kum Kim, Won Ryang Wee
PURPOSE: To compare the accuracy of intraocular lens (IOL) power calculation using conventional regression formulae or the American Society of Cataract and Refractive Surgery (ASCRS) IOL power calculator for previous corneal refractive surgery. METHODS: We retrospectively reviewed 96 eyes from 68 patients that had undergone cataract surgery after keratorefractive surgeries. We calculated the formula with two approaches: IOL powers using the ASCRS IOL power calculator and IOL powers using conventional formulae with previous refractive data (Camellin, Jarade, Savini, and clinical history method) or without prior data (0, 2 and, 4 mm total mean power in topography, Wang-Koch-Maloney, Shammas, Seitz, and Maloney)...
June 29, 2017: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/28913511/accuracy-of-formulae-for-secondary-intraocular-lens-power-calculations-in-pediatric-aphakia
#12
Fouad R Nakhli, Khaled Emarah, Laila Jeddawi
PURPOSE: To compare the accuracy of axial length vergence formulas versus refractive vergence formulas for secondary intraocular lens (IOL) implantation in pediatric aphakia. METHODS: This retrospective comparative study, evaluated 31 eyes of 31 patients aged ≤3.5 years, who had undergone secondary IOL implantation. The median absolute error (MedAE) was compared between axial length vergence formulas (Hoffer Q, Holladay I, SRK II, and SRK/T) and refractive vergence formulas (Lanchulev, Holladay R, Mackool, and Khan) as well as between formulas within the same vergence...
September 2017: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/28905824/management-of-cataracts-and-ectopia-lentis-in-children-practice-patterns-of-pediatric-ophthalmologists-in-india
#13
Vasudha Kemmanu, Pragnya Rathod, Harsha L Rao, Sumitha Muthu, Chaitra Jayadev
PURPOSE: To analyze the current practice patterns of Indian pediatric ophthalmologists in the management of lens anomalies. This study was conducted in a tertiary eye care hospital and involved an online questionnaire survey for practicing pediatric ophthalmologists in India. METHODS: A questionnaire was devised by the authors, which included the various options available for the management of lens anomalies in children. The questionnaire was sent to each of them using an online portal...
September 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28905823/refractive-outcomes-of-intraoperative-wavefront-aberrometry-versus-optical-biometry-alone-for-intraocular-lens-power-calculation
#14
Zina Zhang, Logan William Thomas, Szu-Yen Leu, Steven Carter, Sumit Garg
PURPOSE: To compare the outcomes of intraoperative wavefront aberrometry versus optical biometry alone for intraocular lens (IOL) power calculation in eyes undergoing cataract surgery with monofocal IOL implantation. METHODS: Preoperative data were obtained with the IOLMaster. Intraoperative aphakic measurements and IOL power calculations were obtained in some patients with the optiwave refractive analysis (ORA) system. Analysis was performed to determine the accuracy of monofocal IOL power prediction and postoperative manifest refraction at 1 month of the ORA versus IOLMaster...
September 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28902720/evaluation-of-the-macula-prior-to-cataract-surgery
#15
Marta McKeague, Priya Sharma, Allen C Ho
PURPOSE OF REVIEW: To describe recent evidence regarding methods of evaluation of retinal structure and function prior to cataract surgery. RECENT FINDINGS: Studies in patients with cataract but no clinically detectable retinal disease have shown that routine use of optical coherence tomography (OCT) prior to cataract surgery can detect subtle macular disease, which may alter the course of treatment or lead to modification of consent. The routine use of OCT has been especially useful in patients being considered for advanced-technology intraocular lenses (IOLs) as subtle macular disease can be a contraindication to the use of these lenses...
September 11, 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28900544/effect-of-spherical-aberration-on-the-optical-quality-after-implantation-of-two-different-aspherical-intraocular-lenses
#16
Michael Lasta, Kata Miháltz, Illés Kovács, Pia Veronika Vécsei-Marlovits
PURPOSE: To compare the effect of spherical aberration on optical quality in eyes with two different aspherical intraocular lenses. METHODS: 120 eyes of 60 patients underwent phacoemulsification. In patients' eyes, an aberration-free IOL (Aspira-aA; Human Optics) or an aberration-correcting aspherical IOL (Tecnis ZCB00; Abott Medical Optics) was randomly implanted. After surgery, contrast sensitivity and wavefront measurements as well as tilt and decentration measurements were performed...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28887901/meta-analysis-of-accuracy-of-intraocular-lens-power-calculation-formulas-in-short-eyes
#17
Qiwei Wang, Wu Jiang, Tiao Lin, Xiaohang Wu, Haotian Lin, Weirong Chen
IMPORTANCE: Intraocular lens (IOL) power selection is a critical factor affecting visual outcome after IOL implantation in short eyes. Many formulas have been developed to achieve a precise prediction of the IOL power. However, controversy regarding the accuracy remains. BACKGROUND: To investigate the accuracy of different IOL power calculation formulas in short eyes. DESIGN: Meta-analysis PARTICIPANTS: Patients with the axial length of eyes less than 22mm from previously reported studies...
September 9, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28887682/opacification-of-the-c-flex-570c-intraocular-lens-after-sulcus-fixation
#18
Patrick Daigle, Marjorie Carbonneau
PURPOSE: To report a case of diffuse intraocular lens (IOL) opacification in a patient who started complaining of blurred vision in his left eye over the course of three years after having phacoemulsification surgery combined with capsular bag fixation of a C-flex 570C IOL. The IOL had been repositioned in the ciliary sulcus following its subluxation. METHOD: An IOL exchange was performed, and the explanted IOL was sent for histopathological analysis. RESULTS: Scanning electron microscopy identified multiple crystalline-like deposits on both sides of the IOL...
September 8, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28887114/ajo-centennial-cataract-surgery-from-1918-to-the-present-and-future-just-imagine
#19
Randall J Olson
PURPOSE: To review the history of cataract surgery over the past 100 years, and to offer predictions about new developments that may occur during the next 50 years. DESIGN: Interpretive essay. METHODS: Review of historical literature and author experiences pertaining to cataract surgery, with commentary and perspective. RESULTS: By this time, cataract surgery has advanced to the point that Kelman's introduction of phacoemulsification and use of intraocular lenses (IOLs), both very controversial when initially introduced, have become state of the art...
September 5, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28886702/safety-and-effectiveness-of-oral-misoprostol-for-induction-of-labour-in-a-resource-limited-setting-a-dose-escalation-study
#20
Marilyn Morris, John W Bolnga, Ovoi Verave, Jimmy Aipit, Allanie Rero, Moses Laman
BACKGROUND: Oral misoprostol as an induction of labour (IOL) agent is rapidly gaining popularity in resource-limited settings because it is cheap, stable at ambient temperatures, and logistically easier to administer compared to dinoprostone and oxytocin. We aim to investigate the safety and effectiveness of a regimen of oral misoprostol in Papua New Guinean women undergoing IOL. METHODS: As part of a prospective dose escalation study conducted at Modilon Hospital in Papua New Guinea, women with a singleton pregnancy in cephalic presentation and an unfavourable cervix who gave written informed consent were administered oral misoprostol, commencing at 25mcg once every 2 h for 4 doses and increased to 50mcg once every 2 h for 8 doses within 24 h...
September 8, 2017: BMC Pregnancy and Childbirth
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