Decentration of photorefractive keratectomy ablation zones after excimer laser surgery for myopia.

Abstract:

PURPOSE:To devise a method for measuring excimer laser photorefractive keratectomy (PRK) ablation zone decentration. SETTING:Excimer Laser Clinic, Sunderland Eye Infirmary, Sunderland Tyne and Wear, England. METHODS:Fifty-three eyes of 53 consecutive patients having PRK for a spherical myopic refractive error were studied. Preoperative and postoperative corneal topographic maps and differential subtraction maps were produced for each cornea. Using these maps, the distance between ablation zone centers and pupil centers was measured. All measurements were repeated by a second observer. RESULTS:Mean ablation zone decentration was 0.46 mm from the pupil center; 69% of cases decentered 0.50 mm or less. The difference between the two independent measurements was 0.05 +/- 0.06 mm (mean +/- SD). A trend toward superonasal displacement was noted. CONCLUSION:This simple method of measuring zone decentration can be used to compare the refractive results of PRK with those of other procedures.

authors

Webber SK,McGhee CN,Bryce IG

doi

10.1016/s0886-3350(96)80239-2

subject

Has Abstract

pub_date

1996-04-01 00:00:00

pages

299-303

issue

3

eissn

0886-3350

issn

1873-4502

pii

S0886-3350(96)80239-2

journal_volume

22

pub_type

杂志文章
  • Dual intraocular lens implantation: Monofocal lens in the bag and additional diffractive multifocal lens in the sulcus.

    abstract:PURPOSE:To evaluate a new diffractive multifocal intraocular lens (IOL) as an additional (add-on) IOL for sulcus-based implantation. SETTING:Augenklinik am Neumarkt, Köln, Germany. METHODS:In this prospective study, cataract patients had phacoemulsification and IOL implantation. After phacoemulsification, an aspheric...

    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.2009.07.014

    authors: Gerten G,Kermani O,Schmiedt K,Farvili E,Foerster A,Oberheide U

    更新日期:2009-12-01 00:00:00

  • A matched case-control study of the clinical, economic, and patient-reported outcomes of cystoid macular edema complicating phacoemulsification surgery.

    abstract:PURPOSE:To assess the visual outcomes of pseudophakic cystoid macular edema (CME) as compared with age- and copathology-matched control subjects, the costs of treatment and follow-up, and the patient-reported outcomes using the new Cat-patient-reported outcome measures (PROM) 5 questionnaire. SETTING:West Suffolk Hosp...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1097/j.jcrs.0000000000000192

    authors: Sanders FWB,Lowin P,Gupta N,Roberts HW

    更新日期:2020-06-01 00:00:00

  • Anterior periocular anesthesia: five years experience.

    abstract::Safe, effective administration of local anesthesia prior to ocular surgery is a primary concern of ophthalmologists and variations in the technique and method of delivering anesthesia have been developed. Retrobulbar anesthesia, although considered safe and effective, can have serious complications. Using periocular a...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/s0886-3350(13)80861-9

    authors: Bloomberg LB

    更新日期:1991-07-01 00:00:00

  • Visual outcomes and optical performance with a monofocal intraocular lens and a new-generation single-optic accommodating intraocular lens.

    abstract:PURPOSE:To compare the visual acuity outcomes and the ocular and intraocular optical quality in patients with a monofocal intraocular lens (IOL) or a new-generation single-optic accommodating IOL. SETTING:Vissum Corporation, Alicante, Spain. DESIGN:Comparative case series. METHODS:Consecutive eyes of bilateral catar...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/j.jcrs.2010.04.040

    authors: Alió JL,Piñero DP,Plaza-Puche AB

    更新日期:2010-10-01 00:00:00

  • Analysis of centration of Intacs segments implanted with a femtosecond laser.

    abstract:PURPOSE:To analyze the centration of intrastromal ring segments (Intacs, Addition Technology, Inc.) implanted using a femtosecond laser in eyes with keratoconus. SETTING:Kudret Eye Hospital, Ankara, Turkey. METHODS:In a retrospective noncomparative case series, the distance of deviation of the intrastromal ring segme...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/j.jcrs.2006.11.007

    authors: Ertan A,Kamburoğlu G

    更新日期:2007-03-01 00:00:00

  • Ocular anterior segment changes in pregnancy.

    abstract:PURPOSE:To evaluate the changes occurring in the cornea, anterior segment anatomy, and intraocular pressure (IOP) in pregnant women. SETTING:Department of Ophthalmology, Assaf Harofeh Medical Center, Zerifin, Israel. DESIGN:Prospective single-center comparative study. METHODS:The Ocular Response Analyzer dynamic bid...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/j.jcrs.2014.02.042

    authors: Goldich Y,Cooper M,Barkana Y,Tovbin J,Lee Ovadia K,Avni I,Zadok D

    更新日期:2014-11-01 00:00:00

  • Customized corneal crosslinking for treatment of progressive keratoconus: Clinical and OCT outcomes using a transepithelial approach with supplemental oxygen.

    abstract:PURPOSE:To evaluate the outcomes of customized corneal crosslinking (CXL) for treatment of progressive keratoconus (KC) using a transepithelial approach with supplemental oxygen. SETTING:Siena Crosslinking Center, Siena, Italy. DESIGN:Prospective interventional case series. METHODS:Twenty-seven eyes of 24 patients (...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1097/j.jcrs.0000000000000347

    authors: Mazzotta C,Sgheri A,Bagaglia SA,Rechichi M,Di Maggio A

    更新日期:2020-12-01 00:00:00

  • New method of targeting vectors to treat astigmatism.

    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

    authors: Alpins NA

    更新日期:1997-01-01 00:00:00

  • Pharmacotherapy of photorefractive keratectomy.

    abstract:PURPOSE:To compare the pharmacotherapeutic practices of high-volume photorefractive keratectomy (PRK) surgeons with suggested practices gleaned from the current literature. SETTING:York Finch Eye Associates, Toronto, Canada. METHODS:Seventy-five ophthalmic surgeons believed by the authors to do a high-volume of PRKs ...

    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)80116-7

    authors: Arshinoff SA,Mills MD,Haber S

    更新日期:1996-10-01 00:00:00

  • The 45 degree tilt: improvement in surgical ergonomics.

    abstract::The ergonomics of ocular surgery has received little attention even though the usual positioning of the patient and surgeon during traditional cataract surgery places the surgeon at risk for back, neck, and arm strain. The recent development of the temporal cataract incision allows the operating microscope to be tilte...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/s0886-3350(99)80122-9

    authors: Wallace RB 3rd

    更新日期:1999-02-01 00:00:00

  • Safety and efficacy of an intraocular Fresnel prism intraocular lens in patients with advanced macular disease: initial clinical experience.

    abstract:PURPOSE:To perform a pilot study of a new in-the-bag Fresnel prism intraocular lens (IOL) designed to deviate the image from diseased to healthy retina in eyes with bilateral age-related macular degeneration (AMD). SETTING:Anterior segment subspeciality practice, Pretoria, South Africa. DESIGN:Prospective nonmasked t...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 临床试验,杂志文章

    doi:10.1016/j.jcrs.2013.10.049

    authors: Potgieter FJ,Claoué CM

    更新日期:2014-07-01 00:00:00

  • Low-dose tissue plasminogen activator in the management of anterior chamber fibrin formation.

    abstract:PURPOSE:To investigate the efficacy of tissue plasminogen activator (tPA) in the treatment of severe fibrinous anterior chamber reactions after intraocular surgery. SETTING:Ophthalmology Department, AHEPA University Hospital, Thessaloniki, Greece. METHODS:The study comprised routine surgical and postoperative cases s...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/s0886-3350(02)01813-8

    authors: Georgiadis N,Boboridis K,Halvatzis N,Ziakas N,Moschou V

    更新日期:2003-04-01 00:00:00

  • Intraocular metallic-appearing foreign bodies after phacoemulsification.

    abstract::Intraocular metallic-appearing foreign bodies in the anterior segment were seen in six eyes after cataract extraction by two-handed phacoemulsification. These fragments produced no symptoms and had no clinically significant effect on visual function. Similar-appearing foreign bodies were experimentally produced by app...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/s0886-3350(96)80078-2

    authors: Braunstein RE,Cotliar AM,Wirostko BM,Gorman BD

    更新日期:1996-11-01 00:00:00

  • Oil-drop cataracts.

    abstract::The oil-drop cataract is a common yet often overlooked cause of progressive vision loss. Although the nuclear change can be subtle on slitlamp biomicroscopic examination, retinoscopy reveals the classic oil droplet silhouetted against the red reflex. We present seven patients with oil-drop cataracts referred for neuro...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/s0886-3350(13)80962-5

    authors: Heher KL,Stark WJ,Miller NR

    更新日期:1993-03-01 00:00:00

  • Corneal transillumination: technique to detect big bubble in deep anterior lamellar keratoplasty.

    abstract::Deep anterior lamellar keratoplasty is a widely adopted technique to treat pathologies of the cornea without endothelial cell involvement. This technique has several advantages including longer graft survival without endothelial rejection and lower doses of steroid administration. A transillumination technique was use...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1097/j.jcrs.0000000000000369

    authors: Estrin DA,Szuster NM,Szuster EA

    更新日期:2020-08-03 00:00:00

  • Role of laser refractive surgery in cross-subsidization of nonprofit humanitarian eyecare and the burden of uncorrected refractive error in Nepal: Pilot project.

    abstract:PURPOSE:To establish a refractive surgery unit at Tilganga Institute of Ophthalmology through support from international donations and provide knowledge transfer for doctors and management to make the unit self-sustaining, nonprofit laser refractive surgery, and financial support for other eyecare projects at Tilganga....

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/j.jcrs.2018.05.023

    authors: Reinstein DZ,Carp GI,Pradhan KR,Engelfried C,Archer TJ,Heintz J,Tabin G,Gurung R,Ruit S

    更新日期:2018-08-01 00:00:00

  • Extracapsular cataract extraction and intraocular lens implantation in eyes filled with silicone oil.

    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

    authors: Weinberger D,Kremer I,Lichter H,Axer-Siegel R,Yassur Y

    更新日期:1996-05-01 00:00:00

  • Ophthalmic viscosurgical device-assisted incision modification for the big-bubble technique in deep anterior lamellar keratoplasty.

    abstract:UNLABELLED:We describe several simple modifications of the big-bubble technique to improve surgeon comfort and reduce the risk for complications, with emphasis on our ophthalmic viscosurgical device (OVD)-assisted incision technique. By coating the overlying stroma with OVD prior to entering the big bubble, space is ma...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/j.jcrs.2011.09.014

    authors: Goshe J,Terry MA,Shamie N,Li J

    更新日期:2011-11-01 00:00:00

  • Changes in macular vasculature after uncomplicated phacoemulsification surgery: Optical coherence tomography angiography study.

    abstract:PURPOSE:To use optical coherence tomography (OCT) angiography and a split-spectrum amplitude-decorrelation angiography algorithm to evaluate the changes in the macular vascular system after uncomplicated phacoemulsification. SETTING:Department of Ophthalmology, Eye and and Ear, Nose, and Throat Hospital of Fudan Unive...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/j.jcrs.2018.02.014

    authors: Zhao Z,Wen W,Jiang C,Lu Y

    更新日期:2018-04-01 00:00:00

  • Complication and failure rates after corneal crosslinking.

    abstract:PURPOSE:To evaluate the complication rate of corneal crosslinking (CXL) for primary keratectasia and to develop recommendations for avoiding complications. SETTING:Institut für Refraktive und Ophthalmo-Chirurgie, Zurich, Switzerland. METHODS:In a prospective study, eyes with verified progressive keratectasia had stan...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/j.jcrs.2009.03.035

    authors: Koller T,Mrochen M,Seiler T

    更新日期:2009-08-01 00:00:00

  • Simple method for accurate alignment in toric phakic and aphakic intraocular lens implantation.

    abstract::A simple technique for the accurate surgical alignment of toric phakic and aphakic intraocular lenses (IOLs) is described. The mathematical relationship between toric misalignment and cylinder error is reviewed to demonstrate the importance of toric lens alignment in the setting of increased rotational stability with ...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/j.jcrs.2008.04.041

    authors: Ma JJ,Tseng SS

    更新日期:2008-10-01 00:00:00

  • Prospective visual evaluation of apodized diffractive intraocular lenses.

    abstract:PURPOSE:To evaluate distance, intermediate, and near visual performance in patients who had multifocal apodized diffractive intraocular lens (IOL) implantation. SETTING:Fernández-Vega Ophthalmological Institute, Oviedo, Spain. METHODS:The best corrected distance visual acuity, best distance-corrected near visual acui...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/j.jcrs.2007.03.034

    authors: Alfonso JF,Fernández-Vega L,Baamonde MB,Montés-Micó R

    更新日期:2007-07-01 00:00:00

  • Continuous curvilinear capsulorhexis with use of an endoscope.

    abstract::We describe a technique for creating a continuous curvilinear capsulorhexis (CCC) using an endoscope. Three 2.0 mm limbal incisions 120 degrees apart were made in 4 cadaver eyes. The anterior capsule was stained with trypan blue 0.1% (Vision Blue). Under endoscopic visualization, a CCC was attempted in each of the 4 g...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/j.jcrs.2003.09.051

    authors: Moore JE,Herath GD,Sharma A

    更新日期:2004-05-01 00:00:00

  • Functional vision with cataracts of different morphologies: comparative study.

    abstract:PURPOSE:To evaluate the influence of cataract morphology on the functional vision of patients with age-related cataract and normal macular function and compare subjectively perceived functional impairments to distance visual acuity, reading acuity, and maximum reading speed between cataract types. SETTING:Department o...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/j.jcrs.2004.01.038

    authors: Stifter E,Sacu S,Weghaupt H

    更新日期:2004-09-01 00:00:00

  • Technique for measuring laser in situ keratomileusis flap thickness using the IntraLase laser.

    abstract::Measurement of laser in situ keratomileusis flap thickness is required to estimate residual bed thickness. Historically, flap thickness has been assumed, estimated based on microkeratome head labeling, guessed based on flap handling characteristics, or calculated by subtraction pachymetry. We describe a method for mea...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/j.jcrs.2006.01.003

    authors: Eisner RA,Binder PS

    更新日期:2006-04-01 00:00:00

  • Corneal crosslinking: riboflavin concentration in corneal stroma exposed with and without epithelium.

    abstract:PURPOSE:To evaluate intrastromal concentrations of riboflavin with and without epithelium to ensure the efficacy and safety of corneal crosslinking (CXL) by the standard and transepithelial procedures. SETTING:Department of Ophthalmology and Department of Pharmacology G. Segre, Siena University, Siena, Italy. METHODS...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/j.jcrs.2009.01.009

    authors: Baiocchi S,Mazzotta C,Cerretani D,Caporossi T,Caporossi A

    更新日期:2009-05-01 00:00:00

  • Effect of intraocular lens design on neodymium:YAG laser capsulotomy rates.

    abstract:PURPOSE:To compare the effect of 2 poly(methyl methacrylate) (PMMA), 1-piece biconvex intraocular lens (IOL) designs on the cumulative frequency of neodymium:YAG (Nd:YAG) laser posterior capsulotomy. SETTING:Department of Ophthamology, Mayo Clinic, Rochester, Minnesota, USA. METHODS:This retrospective study evaluated...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/s0886-3350(98)80019-9

    authors: Erie JC,Hardwig PW,Hodge DO

    更新日期:1998-09-01 00:00:00

  • Subjective difficulty of each stage of phacoemulsification cataract surgery performed by basic surgical trainees.

    abstract:PURPOSE:To measure the relative difficulty of each stage of phacoemulsification surgery performed by basic surgical trainees. SETTING:Mater Misericordiae University Hospital, Dublin, Ireland. METHODS:This prospective study comprised 100 consecutive cases of phacoemulsification performed by 8 trainee surgeons over an ...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/j.jcrs.2006.01.045

    authors: Dooley IJ,O'Brien PD

    更新日期:2006-04-01 00:00:00

  • Hyaluronic acid combined with mannitol to improve protection against free-radical endothelial damage: experimental model.

    abstract:PURPOSE:To evaluate the protective properties of combined sodium hyaluronate 2% and mannitol 0.5% (Visiol) on the corneal endothelium in the presence of oxidative stress induced by hydrogen peroxide (H(2)O(2)). SETTING:Instituto Oftalmológico de Alicante, Universidad Miguel Hernández, Alicante, Spain. METHODS:This wa...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/j.jcrs.2004.11.055

    authors: Belda JI,Artola A,García-Manzanares MD,Ferrer C,Haroun HE,Hassanein A,Baeyens V,Munoz G,Alió JL

    更新日期:2005-06-01 00:00:00

  • Relationship between minimum corneal thickness and refractive state, keratometry, age, sex, and left or right eye in refractive surgery candidates.

    abstract:PURPOSE:To evaluate the relationship between the thinnest point in corneal thickness and the refractive state, keratometry, age, sex, and the ocular side. SETTING:Eye clinics in Germany and Austria and the Department of Ophthalmology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany. DESIGN:Cross-section...

    journal_title:Journal of cataract and refractive surgery

    pub_type: 杂志文章

    doi:10.1016/j.jcrs.2011.06.033

    authors: Linke SJ,Steinberg J,Eddy MT,Richard G,Katz T

    更新日期:2011-12-01 00:00:00