Abstract：
PURPOSE:To compare 2 ultrasound (US) frequencies for phacoemulsification for moderate to hard cataract to determine a frequency that makes phacoemulsification safer and more efficacious. SETTING:Post Graduate Institute of Medical Education and Research, New Delhi, India. DESIGN:Randomized controlled trial. METHODS:Patients with grade 4.0 to 6.9 senile cataract were randomized to 2 groups. Group A had lower frequency (28 kHz) phacoemulsification, and Group B had higher frequency (42 kHz) phacoemulsification. The effective phacoemulsification time (EPT) and estimated fluid usage (EFU) were compared intraoperatively. The endothelial parameters were assessed over 1 year. RESULTS:Both groups comprised 80 patients. The groups were matched for age (P = .533), sex (P = .263), and nuclear grade (nuclear color, P = .496; nuclear opalescence, P = .622). Group B had significant reductions in EPT (P = .008) and EFU (P = .004) compared with Group A. Postoperatively, the endothelial cell density (ECD) was significantly higher in Group B at 1 month (P = .004), 3 months (P = .003), 6 months (P = .004), 9 months (P = .002), and 1 year (P = .003). The percentages of ECD loss were also significantly lower in Group B; the difference was statistically significant up to 1 year postoperatively even after adjustments for age, grade of cataract, EPT, and EFU. CONCLUSION:Higher frequency phacoemulsification was associated with a lower EPT and EFU as well as better endothelial preservation than a lower frequency.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Dewan T,Malik PK,Kumari Rdoi
10.1016/j.jcrs.2019.04.015subject
Has Abstractpub_date
2019-09-01 00:00:00pages
1285-1293issue
9eissn
0886-3350issn
1873-4502pii
S0886-3350(19)30292-5journal_volume
45pub_type
杂志文章,随机对照试验abstract：:A patient with long-standing ankylosing spondylitis and chronic uveitis needed cataract extraction in his only eye. Extensive spinal deformities, including cervical kyphosis, prevented him from being positioned satisfactorily for surgery using a routine head-end or temporal position for the surgeon. The best possible ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(00)00596-4
更新日期：2000-08-01 00:00:00
abstract：PURPOSE:To compare the effectiveness of 2 medications commonly used to prevent intraocular pressure (IOP) elevation in the early period after cataract surgery. SETTING:Palo Alto Veterans Affairs Health Care System, Palo Alto, California, USA. METHODS:This prospective study comprised 202 eyes of patients scheduled for...
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(98)80172-7
更新日期：1998-11-01 00:00:00
abstract：:The procedure used for an anterior capsulotomy is extremely important for successful in-the-bag intraocular lens insertion. An incision line in the extreme periphery may obscure the margin of the residual anterior capsule and make it difficult to confirm the position of the implanted lens. I describe a U-shaped anteri...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(87)80079-2
更新日期：1987-05-01 00:00:00
abstract：:The ocular response analyzer (ORA) (Reichert, Inc.) was used in the case of a middle-aged man who developed unilateral corneal ectasia after bilateral laser in situ keratomileusis (LASIK). The preoperative refraction was similar in the 2 eyes. Post-LASIK ectasia was central in the left eye; topography was oblate in th...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2007.11.018
更新日期：2008-03-01 00:00:00
abstract：:The excimer laser is potentially capable of achieving wide area central corneal reprofiling because of its extreme precision and limited penetration into adjacent tissues. A beam modifying system designed for this application is described. Initial clinical studies in monkeys and in ten human patients with blind eyes w...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(89)80055-0
更新日期：1989-07-01 00:00:00
abstract：PURPOSE:To evaluate findings of reverse pupillary block after scleral-fixated sutured posterior chamber intraocular lens (PC IOL) implantation using anterior segment optical coherence tomography (AS-OCT) and report a possible association with postoperative complications. SETTING:Department of Ophthalmology, Kanazawa U...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2009.04.030
更新日期：2009-09-01 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 monitor the change in the area of laser posterior capsulotomy over time to determine whether and when the area becomes stable. SETTING:Taipei Municipal Yang-Ming Hospital, Taipei, Taiwan, Republic of China. METHODS:This prospective study comprised 53 eyes (46 patients) with posterior capsule opacification ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(00)00645-3
更新日期：2001-04-01 00:00:00
abstract：:A technique for phacoemulsification that can be used with or without capsulorhexis and that allows surgery to be performed at the 12 o'clock position is described. Following central sculpting, the nucleus is tipped superiorly to the level of the iris plane with a second instrument and the phacoemulsification tip. The ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)81054-1
更新日期：1991-09-01 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：:Subluxated cataractous and clear lenses are commonly treated by limbal or pars plana lensectomy followed by primary or secondary intraocular lens (IOL) implantation. Adjunctive capsular prosthetic devices have facilitated lens removal and IOL centration in these challenging cases but have also added complexity and pot...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2009.05.019
更新日期：2009-10-01 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：:We describe 2 women with high myopia of -12.0 and -18.0 diopters who presented with myopic macular hemorrhages 1 and 4 days, respectively, after being treated by laser in situ keratomileusis (LASIK). One hemorrhage was related to a pre-existing choroidal neovascularization and the other to the presence of lacquer crac...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(00)00313-8
更新日期：2000-06-01 00:00:00
abstract：:Positive pressure during cataract surgery can adversely affect the clinical outcome if the surgeon is unprepared. A variety of surgical maneuvers are described, including dry insertion of the phacoemulsification needle, capsule protection with the second instrument, dry cortical aspiration in an ophthalmic viscosurgic...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2006.06.011
更新日期：2006-09-01 00:00:00
abstract：:We report a case of bilateral infectious keratitis occurring as a complication of bilateral simultaneous laser in situ keratomileusis enhancement procedures. Corneal scraping from the interface of both eyes grew Staphylococcus aureus. The infection cleared after treatment with fortified cefazolin, fortified gentamicin...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(01)01232-9
更新日期：2002-04-01 00:00:00
abstract：:A lenticule of intrastromal corneal tissue was cut together with 2 small incisions of 3.0 mm using a low-energy femtosecond laser system, FEMTO LDV Z8; 1 incision led to the posterior plane and 1 to the anterior, allowing dissection of the lenticule. When needed, recentering of the treatment area was possible without ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1097/j.jcrs.0000000000000236
更新日期：2020-09-01 00:00:00
abstract：PURPOSE:To compare patient-reported tolerability, impact on quality of life, interference with activities of daily life, and ocular surface toxicity of branded nepafenac 0.3% and generic ketorolac 0.5% after cataract surgery. SETTING:Harvard Eye Associates, Laguna Hills, California, and the Cincinnati Eye Institute, O...
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.2018.08.039
更新日期：2019-02-01 00:00:00
abstract：PURPOSE:To determine the feasibility of using directed bipolar diathermy to eliminate or reduce the formation of new cortical lens material following phacoemulsification in a rabbit model. SETTING:Department of Research & Development, Bausch & Lomb Surgical, and Department of Ophthalmology, St. Louis University, St. L...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(01)01256-1
更新日期：2002-05-01 00:00:00
abstract：PURPOSE:To evaluate and compare the tear-film dynamics in normal eyes and in eyes with mild dry-eye symptoms using a new noninvasive optical method based on a double-pass instrument. SETTING:Hospital Universitario Virgen de la Arrixaca, Murcia, Spain. DESIGN:Evaluation of diagnostic test or technology. METHODS:Dynam...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2011.03.036
更新日期：2011-08-01 00:00:00
abstract：:Injection molded poly(methyl methacrylate) (IM-PMMA), lathe-cut PMMA (LC-PMMA), heparin surface modified PMMA (HSM-PMMA), silicone, and polyhydroxyethyl methacrylate (polyHEMA) intraocular lenses (IOLs) were incubated with platelets, granulocytes, mouse macrophage-like RAW 264.7 cells and mouse fibrosarcoma L929 cells...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)80900-5
更新日期：1992-05-01 00:00:00
abstract：PURPOSE:To determine whether donor eyes had previous refractive surgery using Orbscan (Bausch & Lomb Surgical) corneal topography. SETTING:Lions Eye Bank of Oregon, Portland, Oregon, USA, and Maisonneuve-Rosemont, Hospital, Montreal, Quebec, Canada. METHODS:Orbscan corneal topographies of 50 donor eyes from the Lions...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2005.12.035
更新日期：2006-02-01 00:00:00
abstract：:Small incision cataract surgery has several advantages over conventional surgery, including faster postoperative visual rehabilitation. We evaluated 100 consecutive cases of no-stitch, small incision surgery with a square sclerocorneal tunnel and a flexible intraocular lens. Permanent self-sealing of the wound seemed ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)80234-9
更新日期：1994-09-01 00:00:00
abstract：PURPOSE:To evaluate the intraocular pressure (IOP) change and associated factors 6 months after phacoemulsification in eyes with primary angle-closure suspect (PACS) and eyes with primary angle closure (PAC) that had no medical therapy. SETTING:Singapore National Eye Center, Singapore, Singapore. DESIGN:Retrospective...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2017.03.031
更新日期：2017-06-01 00:00:00
abstract：PURPOSE:Previous studies have reported conflicting results on the influence of seasons on post-cataract surgery endophthalmitis incidences. This study aimed to investigate the seasonality associated with the incidence of postoperative endophthalmitis, and to evaluate its association with climate variables in South Kore...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2019.07.022
更新日期：2019-12-01 00:00:00
abstract：PURPOSE:To evaluate the effect of genipin, a natural crosslinker, on porcine corneas. SETTING:Department of Ophthalmology, Universidad Nacional de Colombia, Bogota, Colombia. METHODS:Corneal strips (12.0 mm x 2.3 mm) were harvested from porcine eyes and treated by incubation with genipin at concentrations of 1.00%, 0...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2009.11.003
更新日期：2010-04-01 00:00:00
abstract：PURPOSE:To report the results of transscleral implantation of foldable intraocular lenses (IOLs). SETTING:Department of Ophthalmology Dokuz Eylül University School of Medicine, Izmir, Turkey. METHODS:Twenty eyes of 20 patients had transscleral fixation of a foldable IOL combined with conventional 3-port pars plana vi...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2003.09.050
更新日期：2004-04-01 00:00:00
abstract：PURPOSE:To calculate theoretically the magnitude of the excess area between the lower surface of the flap and the underlying ablated stroma. METHODS:On the initial assumptions of a nonextensible flap and a spherical cornea, flap and ablated stromal areas were determined as a function of myopic correction in the range ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(02)01636-x
更新日期：2002-12-01 00:00:00
abstract：PURPOSE:To compare the efficacy of low- and high-molecular-weight sodium hyaluronate in protecting corneal endothelial cells during phacoemulsification. SETTING:Miyata Eye Hospital, Miyakonojo, Miyazaki, Japan. METHODS:One hundred forty-nine eyes of 136 cataract patients were randomly assigned to have cataract surger...
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(02)01540-7
更新日期：2002-09-01 00:00:00
abstract：:We received approval from the U.S. implant Food and Drug Administration and the University's Institutional Review Board to the Artisan lens (Ophtec BV) in both eyes of a patient who was aphakic and had megalocornea. No other intraocular lens would easily solve this patient's need because of the large anterior segment....
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2005.12.060
更新日期：2006-03-01 00:00:00
abstract：PURPOSE:To compare near vision and quality of vision after controlling for pseudoaccommodation in patients with single-optic accommodating intraocular lenses (IOLs) or monofocal IOLs targeted for mini-monovision. SETTING:Clinical practice. DESIGN:Prospective randomized controlled clinical trial. METHODS:Patients wer...
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.2012.08.059
更新日期：2013-01-01 00:00:00
