Abstract:
PURPOSE:To compare the volumetric occlusion break surge responses of phacoemulsification units from 1 company over 3 generations under varying vacuum limits and target intraocular pressure (IOP) settings. SETTING:Alcon Research, Ltd., Lake Forest, California, USA. DESIGN:Experimental study. METHODS:Three generations of phacoemulsification units (Infiniti Vision System, Centurion Vision System, and Centurion Vision System with Active Sentry upgrades) were tested. Volumetric surge responses were measured after occlusion breaks at vacuum limits of 200 mm Hg, 300 mm Hg, 400 mm Hg, 500 mm Hg, and 600 mm Hg and target IOPs of 30 mm Hg, 55 mm Hg, and 80 mm Hg. An acrylic test chamber with a piston attached to 3 springs modeled the human eye in this study. The springs were calibrated to mimic volumetric changes in the eye over a wide range of IOPs. RESULTS:Occlusion break surge volumes varied from 17.4 μL to 153 μL, corresponding to 7% and 61%, respectively, of the aqueous volume in the average phakic eye and to 4% and 33% of the aqueous volume in the average aphakic eye. CONCLUSION:Occlusion break surge volumes decreased with increasing target IOP, decreasing vacuum limit, and each generational increment in the phacoemulsification system.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Thorne A,Dyk DW,Fanney D,Miller KMdoi
10.1016/j.jcrs.2018.01.032subject
Has Abstractpub_date
2018-12-01 00:00:00pages
1491-1496issue
12eissn
0886-3350issn
1873-4502pii
S0886-3350(18)30234-7journal_volume
44pub_type
杂志文章abstract:PURPOSE:To evaluate the intraoperative difficulties and long-term outcome of phacoemulsification through a small pupil using minimal iris manipulation. SETTINGS:Iladevi Cataract & IOL Research Centre, Ahmedabad, India. METHODS:This prospective study included 30 consecutive eyes with a maximally dilated pupil size of ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(00)00361-8
更新日期:2000-08-01 00:00:00
abstract:PURPOSE:To propose an alternative method to characterize postocclusion surge using a collapsible artificial anterior chamber to replace the currently used rigid anterior chamber model. SETTING:Fundación Oftamológica Los Andes, Santiago, Chile. METHODS:The distal end of a phacoemulsification handpiece was placed insid...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2005.03.061
更新日期:2005-10-01 00:00:00
abstract:PURPOSE:To compare visual outcomes in patients with cataract surgery and bilateral implantation of a trifocal or bifocal intraocular lens (IOL). SETTING:University Eye Clinic Maastricht, the Netherlands. DESIGN:Prospective randomized clinical trial. METHODS:Eyes with cataract and less than 1.0 diopter (D) of corneal...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jcrs.2015.08.011
更新日期:2015-08-01 00:00:00
abstract::Nordan epikeratophakia technique (NET) is described for the treatment of hyperopia and the results in eight eyes are reported (mean = +5.09 +/- 0.85 diopters preoperatively and -2.09 +/- 1.22 diopters postoperatively). The Nordan epikeratophakia technique is a modification of Kaufman-McDonald epikeratophakia with adva...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(89)80033-1
更新日期:1989-11-01 00:00:00
abstract:PURPOSE:To compare the incidence of diffuse lamellar keratitis (DLK) after laser in situ keratomileusis (LASIK) with flap creation using the 15 kHz (FS15), 30 kHz (FS30), or 60 kHz (FS60) femtosecond laser. SETTING:University-based academic practice, Ann Arbor, Michigan, USA. DESIGN:Retrospective comparative case ser...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2010.09.003
更新日期:2010-11-01 00:00:00
abstract:PURPOSE:To evaluate changes in anterior chamber depth (ACD) and intraocular pressure (IOP) after phacoemulsification in eyes with occludable angles and compare the results with those in eyes with normal open angles. SETTING:Eye Clinic, Ipoh General Hospital, Ipoh, Perak, Malaysia. METHODS:Patients with nonglaucomatou...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2010.02.024
更新日期:2010-08-01 00:00:00
abstract::A 48-year-old man with cataract had uncomplicated phacoemulsification and implantation of a posterior chamber intraocular lens (IOL) into the continuous capsulorhexis. Three years later, part of the capsular bag and a haptic subluxated into the anterior chamber. At the time of repositioning surgery, partial zonular de...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(97)80127-7
更新日期:1997-11-01 00:00:00
abstract:PURPOSE:To investigate the incidence and clinical features of red blood cell (RBC)-coated intraocular lens (IOL) in breakthrough vitreous hemorrhage (VH) with subretinal hemorrhage (SRH) secondary to neovascular age-related macular degeneration (nAMD). SETTING:Seoul National University Bundang Hospital, Seongnam, Kore...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1097/j.jcrs.0000000000000549
更新日期:2020-12-09 00:00:00
abstract::Intraoperative positive pressure with resulting iris and lens prolapse can pose a difficult scenario during penetrating keratoplasty. In the Price graft-over-host technique, the graft is sutured across the trephinated host cornea, which maintains a formed anterior chamber and thus avoids intraoperative complications. ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(98)80123-5
更新日期:1998-06-01 00:00:00
abstract::One hundred and thirty-three eyes of 103 patients had photorefractive keratectomy with a slit scan mode excimer laser for myopia ranging from -6.00 to -22.00 diopters (D). The epithelium was removed with 20% ethanol, and the ablation was done with a tapered profile surrounding the optical zone. Patients were divided i...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(13)80526-3
更新日期:1995-07-01 00:00:00
abstract:PURPOSE:To report a case series of post-phacoemulsification endophthalmitis despite antibiotic prophylaxis with an intracameral injection of a licensed cefuroxime formulation (Aprokam). SETTING:University Hospitals of Pointe-à-Pitre, Guadeloupe, and Fort-de-France, Martinique, French West Indies. DESIGN:Retrospective...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2016.06.030
更新日期:2016-09-01 00:00:00
abstract::The postoperative astigmatic course of unsutured and sutured 4.0 mm scleral pocket incisions was followed for one year in a small pilot study. Initially, with-the-rule changes were noted only in the sutured group; eventually both groups demonstrated a small against-the-rule change that did not differ clinically or sta...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(13)80607-4
更新日期:1993-07-01 00:00:00
abstract:PURPOSE:To compare results of intraocular lens (IOL) power calculation methods using different keratometry (K) values after myopic refractive surgery. SETTING:Seoul St. Mary's Hospital, Seoul, South Korea. DESIGN:Evaluation of diagnostic test or technology. METHODS:The IOL power of patients who had cataract surgery ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2013.04.045
更新日期:2013-11-01 00:00:00
abstract:PURPOSE:To establish whether small incision cataract surgery with phacoemulsification decreases the risk of acute suprachoroidal hemorrhage (ASCH) compared with traditional nucleus expression by extracapsular cataract extraction (ECCE). SETTING:St. Erik Eye Hospital, Stockholm, Sweden. METHODS:A retrospective study w...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(98)80133-8
更新日期:1998-06-01 00:00:00
abstract:PURPOSE:To evaluate the role of intravitreal bevacizumab, an anti-vascular endothelial growth factor agent, injected at the time of cataract surgery on the postoperative progression of diabetic retinopathy (DR) and diabetic maculopathy. SETTING:Tertiary-care eye specialty hospital, Dhahran, Kingdom of Saudi Arabia. M...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jcrs.2008.09.019
更新日期:2009-01-01 00:00:00
abstract:PURPOSE:To assess the repeatability and validity of lens densitometry derived from the Pentacam Scheimpflug imaging system. SETTING:Eye Clinic, Queensland University of Technology, Brisbane, Australia. METHODS:This prospective cross-sectional study evaluated 1 eye of subjects with or without cataract. Scheimpflug mea...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2009.03.017
更新日期:2009-07-01 00:00:00
abstract::We describe a technique that prevents the Argentinean flag sign in white cataract. The technique is based on the intumescent cataract having 2 rather than 1 pressurized compartments within the crystalline lens, the anterior and the posterior. The pressure that pushes the nucleus upward, which is the movement responsib...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2012.07.002
更新日期:2012-09-01 00:00:00
abstract:PURPOSE:To assess endothelial damage induced by poly(methyl methacrylate) (PMMA) intraocular lenses (IOLs) coated with a fluorocarbon polymer, Teflon AF, to make them highly hydrophobic. SETTING:Department of Ophthalmology. Hôtel-Dieu Hospital, Paris, France. METHODS:Ten Teflon-coated and 10 uncoated PMMA IOLs were u...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(97)80073-9
更新日期:1997-09-01 00:00:00
abstract:UNLABELLED:We describe a technique that uses the vitrector to perform successful lens aspiration and posterior chamber intraocular lens (IOL) implantation in children with spherophakia and anterior lens subluxation. After an anterior chamber maintainer is placed, the ocutome is introduced through a limbal incision to p...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2012.05.001
更新日期:2012-07-01 00:00:00
abstract:PURPOSE:To examine the optical quality of healthy presbyopic eyes before and after implantation of the pseudoaccommodating AcrySof ReSTOR Natural intraocular lens (IOL) (Alcon Laboratories) by measuring visual acuity and wavefront aberrations. SETTING:University of Valencia, Fernández-Vega Ophthalmological Institute, ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2008.01.017
更新日期:2008-05-01 00:00:00
abstract:PURPOSE:To evaluate the reduction in the anterior capsule opening after phacoemulsification, continuous curvilinear capsulorhexis, and implantation of 1 of 2 acrylic intraocular lenses (IOLs). SETTING:Department of Ophthalmology, Vejle Hospital, Vejle, Denmark. METHODS:Eighty-four patients (84 eyes) were included in ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jcrs.2007.01.020
更新日期:2007-05-01 00:00:00
abstract:PURPOSE:To objectively evaluate the image quality obtained with toric intraocular lenses (IOLs) when misaligned from the intended axis. SETTING:University Eye Clinic and the Department of Industrial and Information Engineering, University of Trieste, Trieste, Italy. DESIGN:Experimental study. METHODS:An experimental...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2017.10.053
更新日期:2018-03-01 00:00:00
abstract::We report 3 cases of bilateral piggyback lens implantation in which late hyperopic shift occurred associated with Elschnig pearl formation in the peripheral interface between the 2 lenses. ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(99)00034-6
更新日期:1999-06-01 00:00:00
abstract:PURPOSE:To evaluate the long-term response of 6 types of 3-piece intraocular lenses (IOLs) by assessing the cellular reaction on the anterior IOL surface, the behavior of posterior and anterior capsule fibrosis, and flare. SETTING:Department of Ophthalmology, Medical School, University of Vienna, Vienna, Austria. MET...
journal_title:Journal of cataract and refractive surgery
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0886-3350(01)01122-1
更新日期:2002-01-01 00:00:00
abstract::The prophylactic intraoperative use of mitomycin-C (MMC) to prevent haze and scarring after excimer laser surface ablation (phototherapeutic/photorefractive keratectomy [PTK/PRK]) in an eye with a previous laser in situ keratomileusis (LASIK) flap buttonhole with epithelial ingrowth is described. A well-centered butto...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2005.06.035
更新日期:2005-10-01 00:00:00
abstract::Phakic intraocular lens (IOL) implantation is an increasingly popular option in surgical correction of refractive error. To date, reports of long-term morbidity are infrequent in the literature. We encountered 3 patients who experienced corneal decompensation and cataract progression following angle-fixated anterior c...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2005.04.031
更新日期:2005-11-01 00:00:00
abstract:PURPOSE:To describe a method for optimizing the treatment of astigmatism using vector analysis of both refractive and corneal topographic values. SETTING:Cheltenham Eye Centre, Melbourne, Australia. METHODS:This study evaluated a method of vector analysis for planning surgery that uses both preoperative topographic a...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(97)80153-8
更新日期:1997-01-01 00:00:00
abstract::We reviewed the medical records of 1,726 eyes consecutively operated on with extracapsular cataract extraction to examine the incidence of and the risk factors for retinal detachment (RD). In Denmark, both diagnoses and deaths are registered centrally; therefore, a complete follow-up was achieved in each case and actu...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(13)80333-1
更新日期:1993-11-01 00:00:00
abstract:UNLABELLED:We present a 58-year-old man who had cataract surgery in his right eye 8 months after femtosecond laser intrastromal presbyopia treatment (Intracor). The intraocular lens (IOL) power was calculated using the standard optical biometry data and the Holladay I formula without adjusting factors. Routine cataract...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2012.04.023
更新日期:2012-07-01 00:00:00
abstract:PURPOSE:To evaluate the efficacy and safety of phenylephrine 1.0%-ketorolac 0.3% (Omidria) for maintenance of mydriasis during, and reduction of ocular pain after, cataract surgery. SETTING:Twenty centers in the United States and the Netherlands. DESIGN:Prospective randomized clinical trials. METHODS:Patients having...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.jcrs.2015.10.053
更新日期:2015-10-01 00:00:00