Abstract:
PURPOSE:To examine the role of high vacuum and aspiration settings on efficiency using a transversal ultrasound (US) machine. SETTING:John A. Moran Eye Center Laboratory, University of Utah, Salt Lake City, Utah, USA. DESIGN:Experimental study. METHODS:Porcine lens nuclei were incubated in formalin for 2 hours and then cut into 2.0 mm cubes. Phacoemulsification was performed using the Whitestar Signature machine. Settings were bottle height 50 cm, on-time 6 milliseconds, and off-time 6 milliseconds. One hundred percent power was used for all 240 runs. Tested parameters were aspiration of 50 mL/min and 60 mL/min and vacuum of 500, mm Hg, 600 mm Hg, and 650 mm Hg. RESULTS:With continuous US, increasing aspiration from 50 mL/min to 60 mL/min significantly increased efficiency (23%). Increasing vacuum from 500 mm Hg to 650 mm Hg and from 600 mm Hg to 650 mm Hg significantly increased efficiency (20.2% and 13.6%, respectively). Higher vacuum and aspiration parameters did not influence the incidence of chatter events. In the micropulse US group, there was no significant efficiency increase with increasing vacuum or aspiration levels. There was a significant efficiency increase of continuous over micropulse US at an aspiration setting of 60 mL/min and vacuum settings of 600 mm Hg and 650 mm Hg. CONCLUSIONS:As aspiration and vacuum increased, efficiency increased under continuous transverse US. No significant efficiency improvement occurred at high aspiration and vacuum settings under micropulse US. At 60 mL/min aspiration and more than 600 mm Hg vacuum, continuous power was significantly more efficient than micropulse transverse US.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Kabbara S,Heczko JB,Bernhisel AA,Barlow WR,Zaugg B,Pettey JH,Olson RJdoi
10.1016/j.jcrs.2018.05.031subject
Has Abstractpub_date
2018-11-01 00:00:00pages
1378-1383issue
11eissn
0886-3350issn
1873-4502pii
S0886-3350(18)30637-0journal_volume
44pub_type
杂志文章abstract:PURPOSE:To assess whether iris-claw intraocular lenses (IOLs) undergo gravitation-dependent changes in position and refraction. SETTING:Tertiary referral center, Bern, Switzerland. DESIGN:Observational case study. METHODS:Patients with a history of pars plana vitrectomy and IOL exchange with implantation of an aphak...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2016.07.033
更新日期:2016-10-01 00:00:00
abstract:PURPOSE:To implant a small-aperture intraocular lens (IOL) (IC-8) in eyes with severe corneal irregularities to reduce higher-order aberrations and provide better central visual acuity. SETTING:University Hospital, LMU Munich, Germany. DESIGN:Prospective nonrandomized interventional case series. METHODS:Eyes with se...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1097/j.jcrs.0000000000000045
更新日期:2020-02-01 00:00:00
abstract::The results of implanting 269 3M multifocal intraocular lenses are analyzed and compared with those of monofocal lenses. Visual acuity results were excellent. In the best case group, 98% of eyes obtained a distance visual acuity of 20/40 or better and 96% of best cases obtained a functional reading capacity without su...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(13)81044-9
更新日期:1991-09-01 00:00:00
abstract::A 22-year-old woman presented with pain, redness, watering, and decrease in vision in her left eye 15 days after laser in situ keratomileusis for myopia. Slitlamp examination showed a central full-thickness infiltrate with hyphate edges. Microscopic examination of corneal scrapings from the edge and underneath the fla...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(99)00459-9
更新日期:2000-04-01 00:00:00
abstract::Recent clinical studies indicate that flurbiprofen, a cyclooxygenase inhibitor, prevents miosis and breakdown of the blood-aqueous barrier during cataract surgery. Yet based on clinical and experimental data, some researchers do not agree that flurbiprofen prevents miosis. We conducted a double-blind clinical study of...
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(13)80013-2
更新日期:1993-09-01 00:00:00
abstract:PURPOSE:To evaluate incidence, features, risk factors, and prognosis of iridocyclitis after angle-supported phakic intraocular lens (IOL) implantation. SETTING:Private practice, Siena, Italy. METHODS:This retrospective analysis comprised 356 consecutive eyes of 212 patients. In myopic eyes, the ZSAL-4 IOL (205 eyes o...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2006.02.030
更新日期:2006-06-01 00:00:00
abstract:PURPOSE:To analyze the effect of asphericity of intraocular lenses (IOLs) on vertical coma aberration after implantation of spherical, spherically neutral, and aspheric IOLs. SETTING:Department of Ophthalmology, St. Thomas' Hospital, London, United Kingdom. METHOD:This observational study recruited patients from prev...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2009.08.024
更新日期:2010-02-01 00:00:00
abstract::The anterior chamber depth was measured in 15 eyes with sulcus placed (Group 1) and 12 eyes with bag placed (Group 2) IOGEL PC-12 lenses, and in 11 eyes with bag placed IOGEL 1103 lenses (Group 3). The mean anterior chamber depth was 3.29 mm in Group 1, 4.17 mm in Group 2, and 4.16 mm in Group 3. The difference betwee...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(13)81017-6
更新日期:1990-11-01 00:00:00
abstract:PURPOSE:To examine the safety and efficacy of myopic keratomileusis in situ (automated lamellar keratoplasty) using an automated microkeratome. SETTING:Jules Stein Eye Institute and the Department of Ophthalmology, UCLA School of Medicine, Los Angeles, California. METHODS:A retrospective study was done on 135 consecu...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(96)80145-3
更新日期:1996-12-01 00:00:00
abstract:PURPOSE:To determine whether preoperative counseling on possible intraoperative visual perceptions during cataract surgery helps reduce the patients' fear during surgery. SETTING:Aravind Eye Hospital, Madurai, India. DESIGN:Randomized masked clinical trial. METHODS:Patients having phacoemulsification under topical a...
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.2010.11.041
更新日期:2011-05-01 00:00:00
abstract:PURPOSE:To determine the physical and mechanical conditions of an impacting air bag that causes corneal rupture in a post-radial keratotomy (RK) eye using a simulation model of the human eye. SETTING:Numerical simulation study on a computer. METHODS:The simulations were performed by a computer using the finite elemen...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(01)00966-x
更新日期:2001-11-01 00:00:00
abstract::Surgery is a major source of errors in patient care. Preventing complications from surgical errors in the operating room is estimated to lead to reduction of up to 41,846 readmissions and save $620.3 million per year. It is now established that poor technical skill is associated with an increased risk of severe advers...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1097/j.jcrs.0000000000000322
更新日期:2020-07-13 00:00:00
abstract:PURPOSE:To compare the postoperative outcomes between femtosecond laser-assisted cataract surgery (FLACS) and conventional phacoemulsification in eyes with shallow anterior chamber depth (ACD). SETTING:Eye Clinic, NEUROFARBA Department, University of Florence, Italy. DESIGN:Prospective case series. METHODS:Forty eye...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1097/j.jcrs.0000000000000341
更新日期:2020-12-01 00:00:00
abstract:PURPOSE:To evaluate the long-term effects of excimer laser treatment for ametropia after surgical treatment of rhegmatogenous retinal detachment (RRD) with scleral buckles. SETTING:Helsinki University Eye Hospital, Helsinki, Finland. METHODS:Ten patients (10 eyes) who had 1 or more surgeries for RRD followed by refra...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2007.06.023
更新日期:2007-10-01 00:00:00
abstract:PURPOSE:To assess the possibility of deriving an optimum intraocular lens (IOL) power after previous successful trabeculectomy. SETTING:Chang Gung Memorial Hospital, Linko, Taiwan. METHODS:The retrospective study included 1 eye of 22 patients who had cataract surgery after successful trabeculectomy performed by 1 sur...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2004.05.016
更新日期:2004-12-01 00:00:00
abstract:PURPOSE:To estimate ophthalmologist-level variation in cataract surgery billing and evaluate patient and ophthalmologist characteristics associated with complex cataract surgery coding. SETTING:Cross-sectional study. DESIGN:Retrospective case series. METHODS:Medicare beneficiaries aged 65 years or older who had cata...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2019.06.008
更新日期:2019-11-01 00:00:00
abstract:PURPOSE:To study the incidence of and risk factors for pupillary capture after transscleral fixation of a posterior chamber intraocular lens (PC IOL) for dislocated IOLs. SETTING:Department of Ophthalmology, Kyungpook National University Hospital, Daegu, South Korea. DESIGN:Retrospective case series. METHODS:Charts ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2016.05.006
更新日期:2016-08-01 00:00:00
abstract:PURPOSE:To evaluate transient increases in intraocular pressure (IOP) after use of high-viscosity viscoelastic agents in cataract surgery. SETTING:Military Hospital, Ulm, Germany. METHODS:In a prospective, randomized study, we evaluated IOP following cataract surgery using two different viscoelastic substances (Healo...
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(96)80224-0
更新日期:1996-03-01 00:00:00
abstract:PURPOSE:To prospectively evaluate the no-history method for intraocular lens (IOL) power calculation in 15 cataractous eyes that had previous myopic laser in situ keratomileusis (LASIK) and for which the pre-LASIK K-readings were not available. SETTING:Private practice, Lynwood, California, USA. METHODS:The predicted...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2006.08.045
更新日期:2007-01-01 00:00:00
abstract:PURPOSE:To assess the effect of preoperative tear function on early changes in functional visual acuity (FVA) after laser in situ keratomileusis (LASIK). SETTING:Minamiaoyama Eye Clinic, Tokyo, Japan. METHODS:This prospective single-center study assessed the effect of preoperative and postoperative tear functions on ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2004.02.086
更新日期:2004-11-01 00:00:00
abstract:PURPOSE:To study the pattern of postoperative complications following extracapsular cataract extraction (ECCE) with intraocular lens (IOL) implantation in pediatric eyes. SETTING:Tertiary eye care center, New Delhi, India. METHODS:A retrospective analysis of 39 eyes of 28 children referred for complications after ECC...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(99)00296-5
更新日期:1999-12-01 00:00:00
abstract:PURPOSE:To compare the effect of four commercially available viscoelastic agents on postoperative intraocular pressure (IOP). SETTING:Four outpatient sites. METHODS:Sixty-nine patients having routine extracapsular cataract extraction were enrolled in the study; 54 were available for a 3 month follow-up examination. T...
journal_title:Journal of cataract and refractive surgery
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/s0886-3350(96)80199-4
更新日期:1996-09-01 00:00:00
abstract:PURPOSE:To analyze changes in new biomechanical descriptors with myopic femtosecond laser-assisted laser in situ keratomileusis (LASIK), compare them with the biomechanical response after photorefractive keratectomy (PRK) with similar levels of myopic ablation, and evaluate correlations between changes in custom variab...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2013.11.030
更新日期:2014-06-01 00:00:00
abstract:PURPOSE:To report a case series of anterior uveitis after laser in situ keratomileusis (LASIK) and the incidence of anterior uveitis at a mean of 3 years. SETTING:Centro Medico Docente La Trinidad and Clinica Oftalmologica Centro Caracas, Caracas, Venezuela. METHODS:Five refractive surgeons and 18488 eyes that had su...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(02)01364-0
更新日期:2002-10-01 00:00:00
abstract:PURPOSE:To assess the potential effect of surface light scattering on light transmittance of 1-piece hydrophobic acrylic intraocular lenses (IOLs) with or without a blue-light filter. SETTING:John A. Moran Eye Center, University of Utah, Salt Lake City, Utah, USA. DESIGN:Experimental study. METHODS:Intraocular lense...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2013.05.050
更新日期:2014-01-01 00:00:00
abstract::A 77-year-old woman had uneventful phacoemulsification. Postoperative examination revealed that chloramphenicol ointment instilled in the conjunctival fornix had entered the anterior chamber and smeared the intraocular lens (IOL). Immediate surgical removal of the ointment with IOL exchange was performed. The eye sett...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(02)01503-1
更新日期:2003-03-01 00:00:00
abstract::In 8 cases that presented with symptomatic posterior chamber IOL subluxation, a McCannel polypropylene (Prolene) suture was used with the Siepser slipknot technique to successfully refixate the IOLs to the iris. There were no intraoperative complications, and a round pupil was preserved in all cases. ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2003.10.025
更新日期:2004-06-01 00:00:00
abstract:PURPOSE:To evaluate the 12-month U.S. phase II clinical trial results of the Crystalens AT-45 (eyeonics, Inc.) intraocular lens (IOL) used to provide uncorrected distance, intermediate, and near visual acuities in patients having cataract extraction and to compare in a substudy the contrast sensitivity and near visual ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jcrs.2006.02.007
更新日期:2006-05-01 00:00:00
abstract:UNLABELLED:We describe a technique for sutureless intrascleral fixation of a 3-piece intraocular lens (IOL) and custom silicone iris prosthesis complex to address the optical and functional issues of aphakia and aniridia, as well as to restore excellent cosmesis. The 3-piece IOL is anchored to the iris prosthesis using...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2014.09.015
更新日期:2014-11-01 00:00:00
abstract::A 48-year-old man with a history of myopic laser in situ keratomileusis (LASIK) had selective laser trabeculoplasty (SLT) for the treatment of glaucoma in the right eye. He subsequently developed grade 2 diffuse lamellar keratitis (DLK). He then elected to have SLT in the left eye and developed grade 1 DLK. To our kno...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2009.11.024
更新日期:2010-05-01 00:00:00