Abstract:
PURPOSE:To demonstrate the use of polar value analysis of surgically induced astigmatism (SIA). SETTING:Department of Ophthalmology, Arhus University Hospital, Arhus, Denmark. METHODS:Univariate polar value analysis of SIA was demonstrated for a single patient and for aggregate data. Bivariate polar value analysis was performed for aggregate data. RESULTS:The meridional polar value AKP expresses the surgically induced flattening, while the oblique polar value AKP(+45) indicates the torque. This pair of polar values characterizes a regular astigmatism completely. In bivariate polar value analysis, the average SIA is the combined mean for AKP and AKP(+45), while the spread is a confidence area delineated by an ellipse. CONCLUSIONS:Univariate and bivariate polar value analyses, together with the surgically induced change in spherical equivalent power, yield an exact description of surgically induced change following refractive procedures.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Naeser K,Hjortdal Jdoi
10.1016/s0886-3350(00)00799-9subject
Has Abstractpub_date
2001-01-01 00:00:00pages
86-94issue
1eissn
0886-3350issn
1873-4502pii
S0886-3350(00)00799-9journal_volume
27pub_type
杂志文章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: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 determine the accuracy, repeatability, and reproducibility of measurement of lateral dimensions using the Artemis (Ultralink LLC) very high-frequency (VHF) digital ultrasound (US) arc scanner. SETTING:London Vision Clinic, London, United Kingdom. METHODS:A test object was measured first with a micrometer a...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2006.07.017
更新日期:2006-11-01 00:00:00
abstract:PURPOSE:To determine the predictability and consistency of corneal flap thickness, flap diameter, and hinge length with the modern 100 microm head of the Moria LSK-One manual microkeratome. SETTING:Private clinic, office-based practice. METHODS:Forty-two consecutive eyes with no previous surgery having thin flap lase...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2004.10.056
更新日期:2005-06-01 00:00:00
abstract::Posterior-assisted levitation is used to retrieve and levitate a sinking nucleus in cataract surgery associated with posterior capsule rupture. After the nucleus is levitated in the anterior chamber, the intraocular lens (IOL) scaffold procedure helps emulsify the nuclear remnants with the phacoemulsification probe an...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2017.06.004
更新日期:2017-07-01 00:00:00
abstract:PURPOSE:To evaluate visual acuity, refractive outcomes, and anterior corneal higher-order aberrations (HOAs) after myopic laser in situ keratomileusis (LASIK) with uneventful single femtosecond laser pass versus double pass performed for intraoperative suction loss. SETTING:Private refractive surgery center, Valencia,...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2011.06.027
更新日期:2012-01-01 00:00:00
abstract:PURPOSE:The use of monochromatic light in the assessment of intraocular lenses (IOLs) has been criticized for not representing the real-world situation. This study aimed to measure and compare the image quality of 3 extended depth-of-focus (EDOF) IOL models in monochromatic and polychromatic light. SETTING:David J App...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1097/j.jcrs.0000000000000037
更新日期:2020-01-01 00:00:00
abstract:PURPOSE:To evaluate noncorneal astigmatism after implantation of a one-piece, plate-haptic silicone or one-piece poly(methyl methacrylate) PMMA intraocular lens (IOL). SETTING:Klinik und Poliklinik für Augenheilkunde der Universität Regensburg, Germany. METHODS:After a follow-up of at least 3 months, the degree of po...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(97)80117-4
更新日期:1997-11-01 00:00:00
abstract:PURPOSE:To evaluate the safety and complication rates of excimer laser photorefractive keratectomy (PRK). SETTING:Assutah Laser Center, Tel-Aviv, Israel. METHODS:This retrospective study evaluated the complication rate after PRK in 825 consecutive patients who had PRK for myopia and had a follow-up of at least 12 mon...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(97)80311-2
更新日期:1997-10-01 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 evaluate corneal endothelium morphology and function after phacoemulsification using different viscoelastics. SETTING:Eye Clinic, University of Trieste, Italy. METHODS:This prospective, randomized study included results of preoperative and postoperative (7, 30, and 90 days) examinations of 66 patients sche...
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(97)80190-3
更新日期:1997-04-01 00:00:00
abstract::A patient with bilateral Salzmann's nodular degeneration developed a myopic shift of 9 diopters in the right eye and 5 diopters in the left eye after removal of his nodules. This previously unreported complication of removal of peripheral corneal pathology is discussed in light of our current understanding of keratore...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(13)80658-x
更新日期:1994-11-01 00:00:00
abstract:PURPOSE:To determine the effect of ophthalmic viscosurgical devices (OVDs) and irrigation/aspiration (I/A) settings on free radical development during phacoemulsification. SETTING:Department of Ophthalmology, Nippon Medical School, Tokyo, Japan. METHODS:Free radicals were detected by the electron spin resonance (ESR)...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2006.04.026
更新日期:2006-09-01 00:00:00
abstract:PURPOSE:To compare the intended versus the resultant thickness of laser in situ keratomileusis (LASIK) flaps created with a new femtosecond laser and to report the 3-month postoperative refractive outcomes. SETTING:Wellington Eye Clinic, Dublin, Ireland. DESIGN:Retrospective consecutive case series. METHODS:A consec...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2012.10.041
更新日期:2013-03-01 00:00:00
abstract:PURPOSE:To describe a no-history method of estimating the effective lens position (ELP) for double-K intraocular lens (IOL) power calculation in eyes that had previous refractive surgery. SETTING:Departments of Ophthalmology, Taipei Medical University Hospital and Taipei City Hospital, Taipei, Taiwan. METHODS:The cor...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2008.08.030
更新日期:2008-12-01 00:00:00
abstract::We report 2 cases of postoperative intraocular pressure (IOP) elevation in secondary piggyback intraocular lens (IOL) implantation without history of glaucoma or ocular hypertension. A 74-year-old woman with myopic pseudophakia and a 68-year-old man with hyperopic pseudophakia received secondary piggyback AcrySof IOL ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2005.06.034
更新日期:2005-09-01 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::Recently, scleral fixation has been used in posterior chamber intraocular lens implantation in the absence of the posterior capsule. Fixation is achieved with a suture through the ciliary sulcus and sclera at a horizontal or vertical position. To achieve good functional results, the optical portion of the lens must li...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(13)80585-8
更新日期:1994-05-01 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 evaluate a commercially available neural network program for calculation of photorefractive keratectomy treatment nomograms. SETTING:University referral refractive surgery clinic. METHODS:PRK/LASIK Brain, a commercial neural network computer program, was trained using the demographics, preoperative clinica...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(98)80043-6
更新日期:1998-07-01 00:00:00
abstract::The Galand lens is a closed J-loop implant for capsular-bag fixation. We present a retrospective study of 214 eyes implanted with this lens. Eyes were examined at three months, six months, one year, and two years after surgery. Results indicate that 82.2% of eyes obtained a visual acuity of 20/40 or better at two year...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(86)80028-1
更新日期:1986-03-01 00:00:00
abstract:PURPOSE:To evaluate the safety of a new suprachoroidal device, the Cypass micro-stent, for the surgical treatment of open-angle glaucoma (OAG) implanted in conjunction with cataract surgery. SETTING:Multicenter clinical study. DESIGN:Prospective interventional case series. METHODS:This is an interim report of an ong...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jcrs.2012.10.040
更新日期:2013-03-01 00:00:00
abstract:PURPOSE:To test the accuracy and reliability of the first-generation prototype of Tracey-1, a ray-tracing refractometer. SETTING:Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, USA. METHODS:The refractive spherical equivalent (SE) and astigmatism measured by Tracey-1, subjective manifest refraction ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(01)01103-8
更新日期:2002-02-01 00:00:00
abstract:PURPOSE:To evaluate the performance of the microincision Acri. Smart 46S intraocular lens (IOL) (Acri.Tec) in pediatric cataract surgery. SETTING:Department of Ophthalmology, Ludwig-Maximilians University, Munich, Germany. METHODS:Thirty-two consecutive eyes of 22 children who had cataract surgery with planned IOL im...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2007.11.032
更新日期:2008-04-01 00:00:00
abstract:PURPOSE:To evaluate forward light scattering and straylight in single-piece hydrophobic acrylic intraocular lenses (IOLs) (Acrysof) removed from cadaver eyes and design- and power-matched controls, as well as the effect of subsurface nanoglistenings on other optical quality and performance indicators. SETTING:John A. ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2015.07.043
更新日期:2016-01-01 00:00:00
abstract::We report the results of a prospective study that evaluated the efficacy, predictability, and safety of excimer laser photorefractive keratectomy (PRK) to correct residual myopia after radial keratotomy (RK). Using a 193 nm excimer laser, we performed PRK on ten undercorrected myopic eyes that had previous RK surgery....
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(13)80224-6
更新日期:1994-09-01 00:00:00
abstract::Extracapsular cataract extraction with posterior chamber intraocular lens implantation was performed in five phakic eyes filled with silicone oil following vitreoretinal surgery. Silicone oil migration was prevented during surgery using an anterior chamber maintaining system and a self-sealed corneoscleral tunnel inci...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(96)80032-0
更新日期:1996-05-01 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::A 66-year-old Chinese man developed corneal endothelial decompensation after intraocular lens (IOL) repositioning using intracameral epinephrine was performed. The presentation was compatible with toxic endothelial cell destruction syndrome, which is caused by prolonged, direct exposure of the corneal endothelium to r...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2008.05.059
更新日期:2008-11-01 00:00:00
abstract:PURPOSE:To determine whether sutureless small incision cataract surgery reduces induced astigmatism over the long term. SETTING:University Eye Hospital, Vienna, Austria. METHODS:In a prospective study, we investigated surgically induced astigmatism in 63 cases of no-stitch, small incision cataract surgery with a 4.0 ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(97)80180-0
更新日期:1997-04-01 00:00:00