Abstract:
PURPOSE:To examine whether clinically significant differences exist in corneal elevation data from a sampling of countries worldwide. SETTING:International multicenter. DESIGN:Evaluation of diagnostic test or technology. METHODS:One randomly selected eye of normal adults from 8 countries spanning 6 continents was examined using the Pentacam Eye Scanner. Anterior and posterior elevations were measured at the apex and thinnest point. Differences between countries were assessed by Kruskal-Wallis. Normative thresholds were defined according to the Tukey method. RESULTS:The study examined 1 eye of 555 patients. Median elevations were similar across countries. Upper limits of normal for collective international data were 3.5 μm, 6.0 μm, 7.5 μm, and 13.5 μm at the anterior apex, anterior thinnest point, posterior apex, and posterior thinnest point, respectively. These and country-specific thresholds were similar to normal values from previous data; however, country-specific thresholds flagged additional eyes in China, Egypt, and India. Those thresholds were 4.5 μm at the anterior thinnest point (China and Egypt), 7.4 μm at the posterior apex (India), and 11.0 μm and 12.0 μm at the posterior thinnest point (China and Egypt, respectively). CONCLUSIONS:In general, international variations were clinically insignificant; thus, current screening guidelines maintained their applicability. Notable exceptions were China, Egypt, and India, where country-specific thresholds may better reflect the test populations and minimize potential false negative results from screening. FINANCIAL DISCLOSURE:No author has a financial or proprietary interest in any material or method mentioned. Additional disclosures are found in the footnotes.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Feng MT,Belin MW,Ambrósio R Jr,Grewal SP,Yan W,Shaheen MS,Jordon CA,McGhee C,Maeda N,Neuhann TH,Dick HB,Steinmueller Adoi
10.1016/j.jcrs.2011.04.030subject
Has Abstractpub_date
2011-10-01 00:00:00pages
1817-21issue
10eissn
0886-3350issn
1873-4502pii
S0886-3350(11)01080-7journal_volume
37pub_type
杂志文章,多中心研究,随机对照试验abstract:PURPOSE:To assess the effectiveness of using anterior chamber irrigation of unpreserved lidocaine 1% as anesthesia during cataract surgery. SETTING:Private group ophthalmology practice. METHODS:This study prospectively evaluated 1000 of 1012 consecutive eyes having temporal corneal incision cataract surgery to determ...
journal_title:Journal of cataract and refractive surgery
pub_type: 临床试验,杂志文章
doi:10.1016/s0886-3350(97)80212-x
更新日期:1997-05-01 00:00:00
abstract::We evaluated two topical cyclo-oxygenase inhibitors (COIs), 0.03% flurbiprofen and 1% indomethacin, for their ability to prevent pseudophakic cystoid macular edema (CME). The study was a randomized, double-masked, vehicle-controlled, parallel group, clinical trial for six months at eight sites in Canada and two in Ger...
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(13)80484-1
更新日期:1995-01-01 00:00:00
abstract::To evaluate the biocompatibility of various materials including a poly(2-hydroxyethyl methacrylate [HEMA])/(6-hydroxyhexyl methacrylate [HOHEXMA]) hydrophilic hydrogel intraocular lens (IOL) (Hydroview, Bausch & Lomb). Department of Ophthalmology, Wakayama Medical University, Wakayama, Japan. Ten opacified anterior ca...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(02)01988-0
更新日期:2003-06-01 00:00:00
abstract::A multizone/multipass photorefractive keratectomy (MP-PRK) technique was used to treat 315 eyes with the 193 nm VISX 20/20 excimer laser. Algorithms were developed to treat the full range of myopia, including 170 low myopic eyes (-1.0 to -6.0 diopters [D]), 105 moderately myopic eyes (-6.0 to -10.0 D), and 40 highly m...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(13)80559-7
更新日期:1995-11-01 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 evaluate whether photorefractive keratectomy (PRK) for moderate myopia using a solid-state laser with a wavelength of 213 nm alters the corneal endothelial cell density. SETTING:University refractive surgery center. METHODS:The corneal endothelium was analyzed preoperatively and 1, 6, and 12 months postope...
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.2007.06.042
更新日期:2007-11-01 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 investigate whether topical diclofenac sodium 0.1% solution (Voltaren Ophthalmic) is as efficacious as topical ketorolac tromethamine 0.5% solution (Acular) in the treatment of established, chronic cystoid macular edema (CME) after uneventful phacoemulsification cataract extraction with posterior chamber int...
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(03)00233-5
更新日期:2003-12-01 00:00:00
abstract:PURPOSE:To evaluate the influence of a capsular bending ring (CBR) or tension ring (CTR) on capsular bag shrinkage. SETTING:Department of Ophthalmology, Johannes Gutenberg-University, and Department of Medical Biometry, Epidemiology and Informatics, University of Mainz, Mainz, Germany. METHODS:In 92 eyes of 92 patien...
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.2005.06.046
更新日期:2005-10-01 00:00:00
abstract::Corneal collagen crosslinking (CXL) with riboflavin and ultraviolet-A light is a method for treating progressive keratectasia. The currently accepted treatment parameters induce collagen crosslinking in the anterior 250 to 350 microm of corneal stroma. To protect the endothelium, CXL inclusion criteria require a minim...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2008.10.060
更新日期:2009-04-01 00:00:00
abstract:PURPOSE:To evaluate and compare the incidence of cyanopsia using the neutralization method in eyes in which clear or yellow intraocular lenses (IOLs) were implanted. SETTING:Miyata Eye Clinic, Hiroshima, Japan. DESIGN:Retrospective comparative study. METHODS:Patients who had cataract surgery with the implantation of...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2014.07.040
更新日期:2015-04-01 00:00:00
abstract:PURPOSE:To evaluate whether the soft-shell technique using Viscoat (sodium hyaluronate 3%-chondroitin sulfate 4%) and Hyal-2000 (sodium hyaluronate 1%) reduces corneal endothelial cell damage during cataract surgery. SETTING:Department of Ophthalmology, Kangnam St. Mary's Hospital, Seoul, Korea. METHODS:The nuclear o...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2004.02.089
更新日期:2004-11-01 00:00:00
abstract:PURPOSE:To evaluate the agreement of ocular measurements obtained with a new optical biometer (AL-Scan) and a previously validated optical biometer (Lenstar). SETTING:Eye Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China. DESIGN:Prospective observational cross-sectional study. METHODS:For a comprehens...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2015.05.042
更新日期:2016-01-01 00:00:00
abstract:PURPOSE:To evaluate and compare the predictability and safety of immediate small-incision lenticule extraction, also known as SMILE, after suction loss during the procedure with those of uneventful small-incision lenticule extraction. SETTING:Nunemiso Eye Center, Seoul, South Korea. DESIGN:Retrospective case series. ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2016.12.034
更新日期:2017-04-01 00:00:00
abstract:PURPOSE:To investigate the effect of distilled deionized water (DDW) on lens epithelial cells (LECs) attached to the lens capsule. SETTING:Wound Healing Research Laboratory, Center for Vision Research, Westmead Hospital, Sydney, NSW, Australia. METHODS:Anterior capsulotomy specimens taken during routine cataract surg...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2004.01.028
更新日期:2004-05-01 00:00:00
abstract:PURPOSE:To evaluate the effect of a fixed combination of brimonidine-timolol on intraocular pressure (IOP) after phacoemulsification cataract surgery. SETTING:Department of Ophthalmology, Patras University Hospital, Patras, Greece. DESIGN:Prospective randomized comparative case series. METHODS:Patients scheduled for...
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.2010.08.046
更新日期:2011-02-01 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:PURPOSE:To demonstrate an analytical method to compare the actual and intended refraction after cataract surgery that allows incorporation of refractive surgical effects. SETTING:Corneal and External Eye Disease Service, Royal Liverpool University Hospital, Liverpool, United Kingdom. METHODS:The actual postoperative ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(03)00418-8
更新日期:2003-11-01 00:00:00
abstract:PURPOSE:To describe 7 patients who developed ectasia following laser in situ kerato-mileusis (LASIK). SETTING:Instituto de la Visión, Buenos Aires, Argentina. METHODS:In this retrospective study of 7 patients, visual acuity, refraction, pachymetry, and corneal topography were examined before and after the refractive ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(01)00799-4
更新日期:2001-09-01 00:00:00
abstract:PURPOSE:To determine the ability of the limulus amoebocyte lysate (LAL) assay and the in vitro pyrogen test (IPT) to detect pyrogens adsorbed to intraocular lenses (IOLs). SETTING:Berlin Eye Research Institute, Berlin, Germany. METHODS:Fifteen of each of the following IOLs were used: MicroSil MS 612 ASP, AcrySof SA60...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2009.03.012
更新日期:2009-07-01 00:00:00
abstract::We present the case of a 56-year-old woman with moderate myopia and bilateral cataract who had cataract extraction and intraocular lens (IOL) implantation. Due to the patient's desire for spectacle independence, a trifocal IOL with toric correction for astigmatism was implanted. During the follow-up, it became obvious...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2016.02.001
更新日期:2016-03-01 00:00:00
abstract:PURPOSE:To compare the extent of corneal endothelial cell loss and pachymetry changes in 2 age-based groups of patients who had cataract removal by AquaLase (Alcon) phacoemulsification in 1 eye and NeoSoniX (Alcon) phacoemulsification in the contralateral eye. SETTING:Department of Ophthalmology, University Hospital, ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2007.10.033
更新日期:2008-03-01 00:00:00
abstract:PURPOSE:To evaluate the efficacy of epithelial-disruption collagen crosslinking (CXL) for progressive keratoconus using a corneal disruptor device and a riboflavin solution designed for a transepithelial technique. SETTING:Magna Graecia University Eye Clinic, Catanzaro, Italy. DESIGN:Prospective comparative case seri...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2013.05.022
更新日期:2013-08-01 00:00:00
abstract::We describe a variation of stop and chop phacoemulsification. During chopping the chopper's vertical element is depressed posteriorly toward the optic nerve and is placed well within the capsulorhexis margin, leading to in situ chopping. Each fragment is continuously chopped, and the small pieces are stuffed inside th...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章,评审
doi:10.1016/s0886-3350(96)80003-4
更新日期:1996-06-01 00:00:00
abstract:PURPOSE:To theoretically compare the corneal stress distribution of laser in situ keratomileusis (LASIK) with the stress distribution of small-incision lenticule extraction. SETTING:Cleveland Clinic Cole Institute, Cleveland, and The Ohio State University, Columbus, Ohio, USA. DESIGN:Computational modeling study. ME...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2013.08.065
更新日期:2014-06-01 00:00:00
abstract:PURPOSE:To assess visual acuity tolerance to defocus caused by residual refractive errors after clear lens extraction (CLE) with apodized diffractive intraocular lens (IOL) implantation. SETTING:Fernández-Vega Ophthalmological Institute, Oviedo, Spain. METHODS:In this prospective study, 150 eyes of 75 consecutive pat...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2007.10.020
更新日期:2008-02-01 00:00:00
abstract::The accuracy of intraocular lens (IOL) power calculation was evaluated in a multicenter study of 822 IOL implantations using the Binkhorst II, Sanders/Retzlaff/Kraff (SRK I, SRK II, SRK/T), Holladay, and Olsen formulas. All but the first of these were optimized in retrospect with calculation of the SRK A-constant, the...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章,多中心研究
doi:10.1016/s0886-3350(13)80140-x
更新日期:1995-05-01 00:00:00
abstract:PURPOSE:To report the outcomes of implantation of intraocular lenses (IOLs) with a prosthetic iris to correct traumatic iris deficiency. SETTING:Department of Ophthalmology, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada. DESIGN:Case series. METHODS:The medical records of consecutive p...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2010.10.038
更新日期:2011-03-01 00:00:00
abstract:PURPOSE:To evaluate the levels of ischemia-modified albumin (IMA) in relation to oxidant-antioxidant profiles in the serum, aqueous, and lens in cataract patients. SETTING:Department of Ophthalmology, Menoufia University, Shebin El Kom, Menoufia, Egypt. DESIGN:Prospective case series. METHODS:Patients were divided i...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2017.10.051
更新日期:2018-02-01 00:00:00
abstract:PURPOSE:To determine the clinical outcomes of isolated Descemet membrane transplantation (ie, Descemet membrane endothelial keratoplasty [DMEK]) in phakic eyes. SETTING:Tertiary referral center. DESIGN:Cohort study. METHODS:Phakic eyes from a larger group of consecutive eyes that had DMEK for Fuchs endothelial dystr...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2011.11.038
更新日期:2012-05-01 00:00:00