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https://www.readbyqxmd.com/read/29773457/effect-of-increasing-flow-when-grooving-during-phacoemulsification
#1
Brian A Bird, Rhett S Thomson, Lance A Stutz, Joshua B Heczko, Ashlie A Bernhisel, William R Barlow, Brian Zaugg, Jeff H Pettey, Randall J Olson
PURPOSE: To determine optimum flow settings on the Centurion Vision System during the grooving step in cataract surgery. SETTING: John A. Moran Eye Center Laboratory, University of Utah, Salt Lake City, Utah, USA. DESIGN: Experimental study. METHODS: Intact porcine lenses hardened by formalin and placed in a chamber designed to simulate the anterior chamber of the eye were used to test flow rate settings at 20 mL/min, 40 mL/min, and 60 mL/min...
May 15, 2018: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29750722/novel-gonioscopy-score-and-predictive-factors-for-intraocular-pressure-lowering-after-phacoemulsification
#2
Claudio I Perez, Sunee Chansangpetch, Max Feinstein, Marta Mora, Anwell Nguyen, Mai Badr, Marisse Masis, Shan C Lin
PURPOSE: To evaluate a novel gonioscopy score as a potential predictor for intraocular pressure (IOP) reduction after cataract surgery. METHODS: Prospective study that included consecutive patients with or without glaucoma, either with open or narrow angles but without peripheral anterior synechiae, who underwent phacoemulsification. Eyes with intraoperative complications and secondary glaucoma were excluded. A preoperative gonioscopy score was created, summing the Shaffer gonioscopy grading in 4 quadrants (range 0-16)...
May 4, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29750011/a-multicenter-retrospective-comparison-of-goniotomy-versus-trabecular-bypass-device-implantation-in-glaucoma-patients-undergoing-cataract-extraction
#3
Syril K Dorairaj, Malik Y Kahook, Blake K Williamson, Leonard K Seibold, Mohammed K ElMallah, Inder P Singh
Purpose: The aim of this study was to compare intraocular pressure (IOP) outcomes in eyes with cataract and glaucoma undergoing phacoemulsification (phaco) in combination with goniotomy using the Kahook Dual Blade (KDB) or implantation of a single iStent trabecular bypass device. Methods: Retrospective analysis of IOP and IOP-lowering medication reduction in eyes undergoing phaco-goniotomy with KDB (n=237) or phaco-iStent (n=198). Preoperative, intraoperative, and postoperative data were collected through 6 months of follow-up...
2018: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29700617/the-role-of-the-vitreous-body-in-effective-iol-positioning
#4
Joris Vander Mijnsbrugge, Jean-Francois Fils, Joyce Jansen, Minh-Tri Hua, Peter Stalmans
PURPOSE: To compare the effective lens position (ELP) after phaco surgery alone and after combined phacovitrectomy surgery. METHODS: Twenty patients who were scheduled for elective surgery in both eyes were included. In one eye, phacovitrectomy surgery was performed (without any tamponade), and in the fellow eye, only phaco surgery was performed using the same IOL type. Pre- and postoperative biometric measurements were performed using laser interference biometry...
April 26, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29692478/a-clinical-study-to-evaluate-the-results-after-toric-intraocular-lens-implantation-in-cases-of-corneal-astigmatism
#5
P S Moulick, V K Mohindra, V S Gurunadh, Parth Patel, Sandeep Gupta, M A Khan
Backgroud: Modern day cataract surgery aims at a spectacle free vision which becomes difficult in cases with pre-operative astigmatism more than 1.5 D. Implantation of toric intra-ocular lenses (IOL) after phacoemulsification in such eyes is one of the ways to counteract this problem. Methods: Thirty eyes with pre-operative astigmatism between 1.5 D and 4.5 D were implanted with toric IOLs following uneventful phaco-emulsification. The estimation of the axis of implantation of this toric IOL included calculating the surgically induced astigmatism (SIA) of the surgeon...
April 2018: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/29682338/canaloplasty-versus-nonpenetrating-deep-sclerectomy-2-year-results-and-quality-of-life-assessment
#6
Anna Byszewska, Anselm Jünemann, Marek Rękas
Purpose: To compare phacocanaloplasty (PC) and phaco-non-penetrating deep sclerectomy (PDS). Methods: 75 patients with uncontrolled glaucoma and cataract were randomized for PC (37 eyes) or PDS (38 eyes). Intraocular pressure (IOP) and number of medications (meds) were prospectively evaluated. Follow-up examinations were performed on days 1 and 7 and after 1, 3, 6, 12, 18, and 24 months. Surgical success was calculated. Complications and postoperative interventions were noted...
2018: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29673631/comparison-between-the-prechopping-method-with-a-reverse-chopper-and-the-routine-stop-and-chop-method-in-treating-cataract-with-grade-iv-hard-nucleus
#7
Y Zhao, K Yang, J Li, S Zhu
The aim of this study was to compare the safety and efficacy between the prechopping method using a Reverse Chopper (iHPC) and the routine stop-and-chop (RSC) method in phacoemulsification of cataracts with grade IV hard nuclei (HNC (≥IV)). A total of 32 patients (32 eyes) scheduled for Phaco combined with intraocular lens (Phaco-IOL) for HNC (≥IV) from March 2015 to January 2016 were enrolled and randomly divided into two groups (the iHPC group, n=16 and the RSC group, n=16) so as to compare the effective intraoperative Phaco time, corneal edema 1-3 days after surgery, best corrected visual acuity (BCVA), and rate of loss of corneal endothelial cells (CECs) 1 month after surgery...
April 17, 2018: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29669780/microinterventional-endocapsular-nucleus-disassembly-novel-technique-and-results-of-first-in-human-randomised-controlled-study
#8
Tsontcho Ianchulev, David F Chang, Edward Koo, Susan MacDonald, Ernesto Calvo, Farrell Toby Tyson, Andrea Vasquez, Iqbal Ike K Ahmed
AIM: To assess the safety and efficacy of microinterventional endocapsular nuclear fragmentation in moderate to severe cataracts. METHODS: This was a prospective single-masked multisurgeon interventional randomised controlled trial (ClinicalTrials.gov NCT02843594) where 101 eyes of 101 subjects with grade 3-4+ nuclear cataracts were randomised to torsional phacoemulsification alone (controls) or torsional phacoemulsification with adjunctive endocapsular nuclear fragmentation using a manual microinterventional nitinol filament loop device (miLOOP group)...
April 18, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29602568/evaluation-of-ophthalmic-surgical-instrument-sterility-using-short-cycle-sterilization-for-sequential-same-day-use
#9
David F Chang, Nikki Hurley, Nick Mamalis, Jeffrey Whitman
PURPOSE: The common practice of short-cycle sterilization for ophthalmic surgical instrumentation has come under increased regulatory scrutiny. This study was undertaken to evaluate the efficacy of short-cycle sterilization processing for consecutive same-day cataract procedures. DESIGN: Testing of specific sterilization processing methods by an independent medical device validation testing laboratory. PARTICIPANTS: Phaco handpieces from 3 separate manufacturers were tested along with appropriate biologic indicators and controls using 2 common steam sterilizers...
March 27, 2018: Ophthalmology
https://www.readbyqxmd.com/read/29600189/a-comparison-of-surgical-efficacy-between-a-1-8-mm-microincision-and-3-2-mm-and-5-5-mm-incisions-for-phacoemulsification
#10
E Song, Xin Li, Ming-Chao Bi, Hua Ren, Dan Wang, Zhi-Hua Cui, Wei Yang, Hui Shi, Ya-Bin Sun
Phacoemulsification is a commonly used surgical method in cataract surgery. This paper observes and compares the surgical efficacy of three incisions of different length for phacoemulsification to identify the optimal method for cataract surgery. Ninety patients were enrolled in the present study and divided into three groups. The 1.8-mm group received Bausch & Lomb MI60 foldable intraocular lens (IOL) implantation ( n =30), 3.2-mm group received Bausch & Lomb Akreos AO foldable lens implantation ( n =30), and 5...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29543208/-pathogenesis-and-diagnostics-of-postsurgical-macular-edema
#11
E D Sakalova, K S Avetisov, M V Budzinskaya, I V Andreeva
Postsurgical macular edema, known as Irvine-Gass syndrome, is one of the possible causes of reduced visual acuity in phaco surgery. The literature review provides summarized data on pathogenesis, risk factors, clinical manifestations, classification and basic approaches to diagnosis based on modern techniques.
2018: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/29502624/comparison-of-different-types-of-phacoemulsification-tips-iii-morphological-changes-induced-after-multiple-uses-in-an-ex-vivo-model
#12
Konstantinos T Tsaousis, David F Chang, Liliana Werner, Jesus Paulo Perez, Jia J Guan, Nicholas Reiter, He J Li, Nick Mamalis
PURPOSE: To assess the ultrastructural morphologic changes in the surface's micro-roughness for single-use and multiple-use phaco tips after multiple phacoemulsification cycles in an ex vivo animal model. SETTING: John A. Moran Eye Center and Utah Nanofab, College of Engineering, University of Utah, Salt Lake City, Utah, USA. DESIGN: Experimental study. METHODS: Eight types of phaco tips were studied using an identical experimental protocol...
January 2018: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29487820/meta-analysis-of-the-efficacy-and-safety-of-combined-surgery-in-the-management-of-eyes-with-coexisting-cataract-and-open-angle-glaucoma
#13
Nan Jiang, Gui-Qiu Zhao, Jing Lin, Li-Ting Hu, Cheng-Ye Che, Qian Wang, Qiang Xu, Cui Li, Jie Zhang
AIM: To conduct a systematic review and quantitative Meta-analysis of the efficacy and safety of combined surgery for the eyes with coexisting cataract and open angle glaucoma. METHODS: We performed a systematic search of the related literature in the Cochrane Library, PubMed, EMBASE, Web of Science databases, CNKI, CBM and Wan Fang databases, with no limitations on language or publication date. The primary efficacy estimate was identified by weighted mean difference of the percentage of intraocular pressure reduction (IOPR%) from baseline to end-point, the percentage of number of glaucoma medications reduction from pre- to post-operation, and the secondary efficacy evaluations were performed by odds ratio (OR) and 95% confidence interval (CI) for complete and qualified success rate...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29422754/comparative-evaluation-of-corneal-endothelium-in-diabetic-patients-undergoing-phacoemulsification
#14
COMPARATIVE STUDY
Pramod Kumar Sahu, Gopal Krushna Das, Sumeet Agrawal, Sabitabh Kumar, Nitish Kumar
PURPOSE: To determine if phacoemulsification with intraocular lens implantation has a greater impact on the corneal endothelium of type 2 diabetic patients as compared to nondiabetics. MATERIALS AND METHODS: This study compared the endothelial status in 60 diabetics with good glycemic control and 60 nondiabetics before and after uneventful phacoemulsification. Central corneal endothelial cell density, percentage hexagonality and percentage coefficient of variation (%CV) were measured using a specular microscope...
October 2017: Middle East African Journal of Ophthalmology
https://www.readbyqxmd.com/read/29422751/cataract-and-glaucoma-surgery-endoscopic-cyclophotocoagulation-versus-trabeculectomy
#15
COMPARATIVE STUDY
Sheila Marco, Karim F Damji, Samir Nazarali, Chris J Rudnisky
PURPOSE: To compare the efficacy and safety of endoscopic cyclophotocoagulation (ECP) versus trabeculectomy with mitomycin C (trab) in combination with cataract surgery. MATERIALS AND METHODS: We evaluated the 6-month results of patients undergoing phacoemulsification (phaco) with either ECP or trab. The primary outcome was mean intraocular pressure (IOP) at 6 months; secondary outcomes were change in glaucoma medications, visual acuity, intraocular inflammation, and postoperative complications...
October 2017: Middle East African Journal of Ophthalmology
https://www.readbyqxmd.com/read/29350690/fluidics-and-rheology-in-phaco-surgery-what-matters-and-what-is-the-hype
#16
L Benjamin
Rheology can be defined as the study of materials flow behaviour under applied deformation forces (stresses). Inside the eye during cataract surgery, transient or reversible deformation (elasticity) and permanent or irreversible deformation (flow) can both apply. Although the fluidics of modern phaco machines is an important part of this talk, there are a number of issues relating to flow and fluids in the eye during cataract surgery, which are unrelated to the machine, which can hinder or help the operating surgeon in removing a cataract...
February 2018: Eye
https://www.readbyqxmd.com/read/29329140/slit-lamp-needling-of-the-anterior-capsule-for-aqueous-misdirection-after-hyaloido-zonulectomy-and-iridectomy
#17
Pierre G Mardelli, Marc E Mardelli
INTRODUCTION: We present a case of persistent aqueous misdirection, after Ahmed glaucoma valve surgery, despite undergoing an anterior vitrectomy with hyaloido-zonulectomy and iridectomy. CASE REPORT: A 73-year-old female patient, 4 months after phacotrabeculectomy, was referred with persistent high intraocular pressure (IOP). Postoperatively, she developed aqueous misdirection with a flat anterior chamber (AC) but with an IOP of 15 mm Hg. On presentation, her AC was shallow with peripheral iris-cornea touch, and her IOP was 39 mm Hg...
April 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29223227/cataract-surgery-and-environmental-sustainability-waste-and-lifecycle-assessment-of-phacoemulsification-at-a-private-healthcare-facility
#18
Cassandra L Thiel, Emily Schehlein, Thulasiraj Ravilla, R D Ravindran, Alan L Robin, Osamah J Saeedi, Joel S Schuman, Rengaraj Venkatesh
PURPOSE: To measure the waste generation and lifecycle environmental emissions from cataract surgery via phacoemulsification in a recognized resource-efficient setting. SETTING: Two tertiary care centers of the Aravind Eye Care System in southern India. DESIGN: Observational case series. METHODS: Manual waste audits, purchasing data, and interviews with Aravind staff were used in a hybrid environmental lifecycle assessment framework to quantify the environmental emissions associated with cataract surgery...
November 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29208826/limited-vitrectomy-in-phacomorphic-glaucoma
#19
Ritika Sachdev, Avnindra Gupta, Ritesh Narula, Rashmi Deshmukh
One of the challenging situations for a cataract surgeon is phacoemulsification in the shallow anterior chamber like cases of phacomorphic glaucoma. Some of the main concerns of operating in a narrow space include endothelial decompensation, descemet's detachment, and posterior capsular rents. High vitreous pressure predisposes to posterior capsular rents owing to a reduced concavity of the posterior capsule and increasing the proximity of phaco-tip to the posterior capsule. We describe a technique of limited vitrectomy in such cases...
December 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29188470/femtosecond-laser-assisted-cataract-surgery-with-bimanual-technique-learning-curve-for-an-experienced-cataract-surgeon
#20
Gian Maria Cavallini, Tommaso Verdina, Michele De Maria, Elisa Fornasari, Elisa Volpini, Luca Campi
PURPOSE: To describe the intraoperative complications and the learning curve of microincision cataract surgery assisted by femtosecond laser (FLACS) with bimanual technique performed by an experienced surgeon. METHODS: It is a prospective, observational, comparative case series. A total of 120 eyes which underwent bimanual FLACS by the same experienced surgeon during his first experience were included in the study; we considered the first 60 cases as Group A and the second 60 cases as Group B...
November 29, 2017: International Ophthalmology
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