Abstract：
PURPOSE:To develop a technique to quantify biomechanical changes in the cornea after microkeratome incisions as would be performed in laser in situ keratomileusis. SETTING:St Thomas' Hospital, London, and the Wolfson School of Mechanical and Manufacturing Engineering, Loughborough University, Loughborough, United Kingdom. METHODS:Corneal displacements of whole sheep eyes were studied under hydrostatic loading using electronic speckle pattern interferometry before and after microkeratome incisions. RESULTS:After hydrostatic loading, there was a 20.7% increase in corneal displacement in corneas with microkeratome incisions compared to unoperated corneas; this was statistically significant (P=.0068, unpaired t test). CONCLUSIONS:Results show that in the formation of the microkeratome flap, collagen fibers are severed and minimal biomechanical loading is distributed through the flap. Corneal biomechanical integrity is compromised after microkeratome incisions.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Jaycock PD,Lobo L,Ibrahim J,Tyrer J,Marshall Jdoi
10.1016/j.jcrs.2004.10.038subject
Has Abstractpub_date
2005-01-01 00:00:00pages
175-84issue
1eissn
0886-3350issn
1873-4502pii
S0886-3350(04)01050-8journal_volume
31pub_type
杂志文章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 evaluate an algorithm for corneal power estimation in intraocular lens (IOL) power calculation after myopic laser refractive surgery using direct corneal measurements. SETTING:International Vision Correction Research Centre, University of Heidelberg, Heidelberg, Germany. METHODS:Corneal parameters in norma...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2009.07.011
更新日期：2010-01-01 00:00:00
abstract：:Two patients with active iritis developed cataracts and had successful cataract surgery with implantation of a Collamer (Staar Surgical, AG) intraocular lens (IOL). Both patients developed severe bilateral uveitis, which in 1 patient was refractory to control. Different IOL materials have been used in iritis patients ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(03)00329-8
更新日期：2003-12-01 00:00:00
abstract：:We report the case of a 30-year-old woman with recent onset of unilateral iris distortion and glaucoma that was noticed following uneventful laser in situ keratomileusis (LASIK). The corneal endothelium in the right eye appeared normal with the slitlamp microscope, and LASIK-related anterior segment ischemia was initi...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2007.12.047
更新日期：2008-05-01 00:00:00
abstract：PURPOSE:To compare the 12-month postoperative quality of vision and visual performance of 2 different refractive rotationally asymmetric multifocal intraocular lenses (IOLs). SETTING:Cathedral Eye Clinic, Belfast, Northern Ireland, United Kingdom. DESIGN:Retrospective case series. METHODS:Refractive lens exchange (R...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2017.05.039
更新日期：2017-08-01 00:00:00
abstract：UNLABELLED:We describe a case of unilateral corneal ectasia in a 26-year-old man following small-incision lenticule extraction. The preoperative corneal topography was normal, with a minimum corneal thickness of 511 μm and 513 μm in the right eye and left eye, respectively. Lenticules of 85 μm and 82 μm were fashioned ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2015.08.006
更新日期：2015-09-01 00:00:00
abstract：PURPOSE:To assess whether laser in situ keratomileusis (LASIK) assisted by corneal topography can successfully treat corneal irregularities or irregular astigmatism in patients with previous ocular surgery or ocular trauma. SETTING:University Eye Hospital, Klinikum Mannheim, Mannheim, Germany. METHODS:In a prospectiv...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(98)80196-x
更新日期：1998-02-01 00:00:00
abstract：PURPOSE:To analyze anterior segment structure changes during accommodative stimuli after monofocal intraocular lens (IOL) implantation using 2 ultrasound biomicroscopy (UBM) systems. SETTING:Department of Ophthalmology, University of Verona, Verona, Italy. METHODS:Twenty-six eyes (23 patients) with 1 of 4 monofocal I...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2008.02.018
更新日期：2008-06-01 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：: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：UNLABELLED:We describe a technique that uses flexible iris hooks to dilate and stabilize the capsular bag in a patient with a very deep set and small eye, narrow palpebral fissure, shallow anterior chamber, and very small pupil, who was scheduled for routine phacoemulsification for a white cataract. At the time of iris...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2014.07.009
更新日期：2014-09-01 00:00:00
abstract：:A prospective study of function and fixation was done on 40 patients implanted with small incision poly(methyl methacrylate), single piece, biconvex intraocular lenses after in situ phacoemulsification cataract extraction via a continuous curvilinear capsulorhexis. A 5.0 mm circular optic (Pharmacia 740 P), 14 mm leng...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)80919-4
更新日期：1992-03-01 00:00:00
abstract：PURPOSE:To correlate cycloplegic subjective refraction with cycloplegic autorefractometry in eyes that have had laser in situ keratomileusis (LASIK). SETTING:Vlemma Eye Institute, Athens, Greece. METHODS:Subjective refraction and autorefractometry under cycloplegia were performed in 73 eyes of 46 patients 1, 6, and 1...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(02)01743-1
更新日期：2003-01-01 00:00:00
abstract：PURPOSE:To measure the rheological behaviour of artificial tears to gain insight into the potential role of rheology in predicting the efficacy of artificial tear solutions for the treatment of dry eye disease (DED). SETTING:Research laboratories of I-MED Pharma, Canada, Rohn and Associates, Inc., New Jersey, and Hyda...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1097/j.jcrs.0000000000000507
更新日期：2020-11-30 00:00:00
abstract：:We report a case of nanophthalmos with intractable secondary glaucoma. Bilateral cataract extraction with intraocular lens implantation was used as definitive treatment for the chronic angle-closure glaucoma. The changes in angle and ciliary body anatomy were well documented with preoperative and postoperative Pentaca...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2006.02.051
更新日期：2006-06-01 00:00:00
abstract：PURPOSE:To investigate the penetration of topically applied levofloxacin 0.5% and ofloxacin 0.3% eyedrops into the aqueous humor of patients having cataract surgery. SETTING:Hochkreuzklinik Eye Hospital, Bonn, Germany. METHODS:In this randomized, investigator-masked study, 69 patients received 4 drops of either levof...
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/j.jcrs.2004.12.063
更新日期：2005-07-01 00:00:00
abstract：PURPOSE:To investigate if a combination of topical nonsteroid anti-inflammatory drugs (NSAIDs) and steroids were superior in controlling early postoperative inflammation after cataract surgery compared with topical NSAIDs alone and with dropless surgery where a subtenon depot of steroid was placed during surgery. SETT...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1097/j.jcrs.0000000000000455
更新日期：2020-10-16 00:00:00
abstract：:This report details the case of a 65-year-old man with advanced cataract in which there was a large discrepancy between the K-readings taken with a keratometer and those taken with a TMS-1 videokeratoscope. It was suspected the discrepancy was caused by the advanced cataract in the presence of a dilated pupil. Repeat ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(96)80155-6
更新日期：1996-12-01 00:00:00
abstract：PURPOSE:To compare the outcomes of mechanical and femtosecond laser-assisted tunnel creation for intrastromal corneal ring segment (ICRS) implantation in eyes with keratoconus. SETTING:Kartal Training and Research Hospital, Istanbul, Turkey. METHODS:In this prospective study, consecutive eyes with keratoconus were ra...
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.2010.04.028
更新日期：2010-09-01 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：UNLABELLED:We present a new option for visual rehabilitation of patients with advanced macular degeneration and evaluate the outcomes in the first 8 patients who had implantation of the ciliary sulcus-fixated macular add-on intraocular lens (IOL) (Scharioth Macula Lens) at our institute. The surgical technique for impl...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2015.07.018
更新日期：2015-08-01 00:00:00
abstract：:We report a case in which the capsular bag with an intraocular lens (IOL) and a capsular tension ring (CTR) dislocated into the vitreous. The dislocated foldable posterior chamber IOL and CTR were removed with a pars plana vitrectomy and exchanged with a scleral-fixated IOL. No complications occurred intraoperatively ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2006.05.016
更新日期：2006-10-01 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：PURPOSE:To evaluate the safety and efficacy of a single perioperative sub-Tenon's injection of triamcinolone following cataract surgery and its effect on the incidence of early pseudophakic cystoid macular edema (CME). SETTING:Ophthalmology Department, Queen's Medical Centre University Hospital, Nottingham. United Kin...
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.2005.12.102
更新日期：2006-03-01 00:00:00
abstract：PURPOSE:To compare ocular performance and quality of vision in pseudophakic eyes with an aspherical intraocular lens (IOL) or a conventional spherical IOL. SETTING:Bretonneau University Hospital, Tours, France. METHODS:Twenty patients (40 eyes) were randomly divided in 2 equal groups to bilaterally receive the aspher...
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.2006.10.035
更新日期：2007-02-01 00:00:00
abstract：PURPOSE:To evaluate the visual results and complications of angle-supported phakic intraocular lenses (IOLs) to correct myopia associated with early-stage keratoconus. SETTING:Private practice, Siena, Italy. METHODS:In a prospective noncomparative single-surgeon interventional case series, outcomes in 12 consecutive ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(03)00346-8
更新日期：2003-08-01 00:00:00
abstract：PURPOSE:To compare the outcome of phacotrabeculectomy with implantation of poly(methyl methacrylate) (PMMA) or foldable silicone intraocular lenses (IOLs). METHODS:Thirty patients were randomized to receive a 5.5 mm PMMA IOL through a 5.0 mm incision or a foldable silicone IOL (Allergan SI-30) through a 3.2 mm incisio...
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(00)00478-8
更新日期：2000-10-01 00:00:00
abstract：PURPOSE:To examine differences in efficacy, accuracy, safety, and changes in aberrations between femtosecond and mechanical microkeratome laser in situ keratomileusis (LASIK) for myopia. SETTING:Department of Ophthalmology, Shanghai First People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China. ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章,meta分析
doi：10.1016/j.jcrs.2011.05.043
更新日期：2011-12-01 00:00:00
abstract：PURPOSE:To assess how intraocular lens (IOL) formula choice affects refractive outcomes after cataract surgery using IOLMaster biometry. SETTING:Department of Ophthalmology, Gloucestershire Hospitals NHS Foundation Trust, Cheltenham, United Kingdom. DESIGN:Database study. METHODS:Hypothetical prediction errors were ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2010.07.032
更新日期：2011-01-01 00:00:00
abstract：PURPOSE:To assess the degree of capsular bag opacification in human cadaver eyes with silicone intraocular lenses (IOLs), specifically comparing the differences between round-edged IOLs and modern square-edged IOLs. SETTING:John A. Moran Eye Center, University of Utah, USA. DESIGN:Experimental study. METHODS:The eye...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2010.10.058
更新日期：2011-04-01 00:00:00
