Abstract:
PURPOSE:To determine the comparability and repeatability of corneal astigmatism measurements obtained with different devices and determine the interobserver variability of a new automated keratometer. SETTING:University Eye Clinic Maastricht, the Netherlands. DESIGN:Prospective cohort study. METHODS:The right eye of healthy subjects was examined with the following 6 devices: IOLMaster (automated keratometry), Lenstar (automated keratometry), SMI Reference Unit 3 (automated keratometry), Javal (manual keratometry), KR-1W (corneal topography), and Pentacam (Scheimpflug imaging). An experienced operator obtained 3 repeated measurements. An inexperienced operator obtained additional measurements with the SMI Reference Unit 3. Astigmatism vector analysis was used to determine the comparability, repeatability, and interobserver variability. RESULTS:Corneal astigmatism vectors measured by automated, manual, or simulated keratometry were comparable except for the Pentacam equivalent keratometry (K) (P<.001, repeated-measures analysis of variance [ANOVA]). The mean difference between the equivalent K and other K values was 0.18 to 0.29 diopter (D) (P<.05, Hotelling trace multivariate ANOVA). The mean differences between automated, manual, and simulated keratometry were small (≤0.12 D). The within-subject standard deviation ranged from 0.05 D @ 21 degrees (KR-1W) to 0.18 D @ 23 degrees (Lenstar). The SMI Reference Unit showed small mean differences and comparable repeatability between the experienced operator and the inexperienced operator. CONCLUSIONS:Vector analysis showed comparable corneal astigmatism measurements using automated, manual, and simulated keratometry. Pentacam equivalent K values were not comparable with those of the other keratometers. The repeatability of astigmatism magnitudes was acceptable; however, the repeatability of astigmatism meridians was moderate. The SMI Reference Unit showed good interobserver variability.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Visser N,Berendschot TT,Verbakel F,de Brabander J,Nuijts RMdoi
10.1016/j.jcrs.2012.05.036subject
Has Abstractpub_date
2012-10-01 00:00:00pages
1764-70issue
10eissn
0886-3350issn
1873-4502pii
S0886-3350(12)00894-2journal_volume
38pub_type
杂志文章abstract:PURPOSE:To understand, demonstrate, and further research the mechanisms of accommodation and presbyopia. SETTING:Private practice, Little Silver, New Jersey, USA. DESIGN:Experimental study. METHODS:The CAMA 2.0 computer-animated model of accommodation and presbyopia was produced in collaboration with an experienced ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2014.07.028
更新日期:2015-02-01 00:00:00
abstract:PURPOSE:To identify potential risk factors associated with post-cataract surgery bacterial endophthalmitis. SETTING:The John A. Moran Eye Center, Salt Lake City, Utah, USA. METHODS:This retrospective cohort study consisted of patients who had surgery for cataract(s) at this eye hospital. A 10% sampling of all patient...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2004.10.057
更新日期:2005-04-01 00:00:00
abstract::We report the case of a 54-year-old man who attended our emergency department complaining of severe floaters and decreased vision in his right eye. Seven days earlier, a dexamethasone intravitreal implant (Oxurdex) had been placed for a noninfectious posterior uveitis. Slitlamp examination showed the implant had penet...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2013.06.003
更新日期:2013-08-01 00:00:00
abstract:UNLABELLED:We present a technique that uses a near-point string to demonstrate the anticipated near point of multifocal and accommodating intraocular lenses (IOLs). Beads are placed on the string at distances corresponding to the near points for diffractive and accommodating IOLs. The string is held up to the patient's...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2016.04.003
更新日期:2016-05-01 00:00:00
abstract:PURPOSE:To compare the outgrowth of lens epithelial cells (LECs) on 3 types of intraocular lenses (IOLs) to determine the influence of lens material and lens design (optic edge) on this phenomenon. SETTING:Department of Ophthalmology, University of Vienna, Medical School, Vienna, Austria. METHOD:Ninety eyes scheduled...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(00)00861-0
更新日期:2001-06-01 00:00:00
abstract::Eighteen surgeons performed 166 consecutive epikeratoplasty procedures to correct myopia in 103 patients. Of this total, 147 (89%) were first surgeries and 19 (11%) were repeat surgeries. First surgery patients were divided into three subpopulations based on preoperative spherical equivalents (low -5.00 diopters [D] t...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(13)80869-3
更新日期:1990-01-01 00:00:00
abstract:PURPOSE:To determine the typical in vitro straylight levels for intraocular lenses (IOLs) of different materials and designs. SETTING:Abbott Medical Optics, Inc., Groningen, the Netherlands. DESIGN:Experimental study. METHODS:Two optical bench setups were used to determine baseline straylight levels of IOLs placed i...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2014.10.017
更新日期:2014-12-01 00:00:00
abstract::We report 3 cases of globe rupture after peribulbar anesthesia. We discuss the predisposing factors, presenting features, and visual outcome after this complication. Globe explosion is a severe complication of inadvertent intraocular injection during peribulbar anesthesia. Visual outcome after vitrectomy is generally ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(01)01034-3
更新日期:2002-03-01 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 compare results of intraocular lens (IOL) power calculation methods using different keratometry (K) values after myopic refractive surgery. SETTING:Seoul St. Mary's Hospital, Seoul, South Korea. DESIGN:Evaluation of diagnostic test or technology. METHODS:The IOL power of patients who had cataract surgery ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2013.04.045
更新日期:2013-11-01 00:00:00
abstract:PURPOSE:To report a case series of anterior uveitis after laser in situ keratomileusis (LASIK) and the incidence of anterior uveitis at a mean of 3 years. SETTING:Centro Medico Docente La Trinidad and Clinica Oftalmologica Centro Caracas, Caracas, Venezuela. METHODS:Five refractive surgeons and 18488 eyes that had su...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(02)01364-0
更新日期:2002-10-01 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 identify preoperative and intraoperative factors associated with a capsule complication; that is, a capsule tear or a zonular dehiscence during cataract surgery. SETTING:Ten ophthalmic surgery departments in Sweden. METHODS:A retrospective review of files of patients with a capsule complication and control...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jcrs.2009.05.026
更新日期:2009-10-01 00:00:00
abstract:PURPOSE:To compare corneal astigmatism measurements obtained using a new optical biometer (AL-Scan) and a standard biometer based on partial coherence interferometry (IOLMaster 500) for toric intraocular lens (IOL) selection. SETTING:Siriraj Hospital, Mahidol University, Bangkok, Thailand. DESIGN:Prospective comparat...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2014.06.029
更新日期:2015-02-01 00:00:00
abstract::There is an increasing interest in the use of the excimer laser in ophthalmology, particularly in refractive surgery. The argon fluoride (193 nm) excimer laser ablates tissue with a high degree of precision and without any mechanical or thermal damage to surrounding structures. In this study, the argon fluoride excime...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(13)80780-8
更新日期:1990-09-01 00:00:00
abstract::We present a patient who had decreased visual acuity and hypotony in the left eye 2 months after removal of an anterior chamber phakic intraocular lens (pIOL). Gonioscopy demonstrated a cyclodialysis cleft at the 6 o'clock position in the region of the IOL footplate, which was confirmed by ultrasound biomicroscopy. A ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2006.09.044
更新日期:2007-03-01 00:00:00
abstract::The management of malignant glaucoma involves either anterior vitrectomy with zonulectomy and iridectomy or 3-port core pars plana vitrectomy (PPV) by retinal surgeons. The proposed modification can be performed with reasonable success rates. In this technique, synechiolysis and anterior chamber irrigation is performe...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1097/j.jcrs.0000000000000519
更新日期:2020-11-23 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::Twenty-eight epikeratophakia procedures have been performed at the University of Minnesota since December 1985. This report describes several technique modifications and compares the refractive and visual outcome of these cases with the national results. There have been 17 aphakic cases (13 adult and four pediatric), ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(89)80091-4
更新日期:1989-05-01 00:00:00
abstract::We used the finite element method to evaluate different capsulotomy techniques. Nucleus expression was simulated in a computer model to visualize stress distribution in the anterior capsule. The finite element model demonstrated that the capsulorhexis edge is strong because of low and uniform stress distribution in th...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(13)80176-9
更新日期:1994-07-01 00:00:00
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 evaluate the cleavage plane, corneal cytoarchitecture, and cell vitality of separated corneal epithelial sheets created with 3 commonly used microkeratomes. SETTING:Laboratories of the Regensburg University Medical Center, Regensburg, Germany. METHODS:Mechanical separation of the epithelial layer in 10 por...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2008.06.028
更新日期:2008-10-01 00:00:00
abstract::We report a case of late-onset diffuse lamellar keratitis (DLK) in the left eye of a 56-year-old white woman 3 years after uneventful bilateral laser in situ keratomileusis (LASIK). Slitlamp examination revealed stage 3 DLK with diffuse, multifocal, dot-like, and granular haze in the interface. The DLK did not have an...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2004.05.054
更新日期:2005-02-01 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::A 31-year-old woman developed pain, decreased vision, and a corneal flap infiltrate 4 days following laser in situ keratomileusis (LASIK). Treatment with topical antibiotic agents did not improve the symptoms. Approximately 2 weeks after surgery, the patient was referred to Stanford University, with 20/400 visual acui...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2007.05.051
更新日期:2007-10-01 00:00:00
abstract::We report six-month results of the Summit Technology Myopic Keratomileusis Phase I multicenter study. Fifty-seven eyes of 57 patients had keratomileusis to correct high myopia. A microkeratome was used for the primary keratectomy and the excimer laser was used to ablate the stroma of the resected lenticle (cap) or the...
journal_title:Journal of cataract and refractive surgery
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1016/s0886-3350(13)80648-7
更新日期:1994-11-01 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:PURPOSE:To analyze the results of 1-way phacoemulsification and posterior chamber intraocular lens (IOL) implantation combined with trabeculectomy. SETTING:Department of Ophthalmology and Neurosurgery, University of Siena, Siena, Italy. METHODS:This retrospective study comprised 42 eyes of 36 patients with glaucoma a...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(99)00269-2
更新日期:1999-12-01 00:00:00
abstract::A 43-year-old man with high myopia developed unilateral pigmentary glaucoma with recurrent episodes of painless blurred vision in the left eye following uneventful phacoemulsification. Bilateral cataract surgery was performed with capsular bag implantation of a +4.00 diopter AcrySof MA60 intraocular lens (IOL) (Alcon ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2006.08.018
更新日期:2006-11-01 00:00:00
abstract::A 58-year-old woman had successful phacoemulsification with intraocular lens (IOL) implantation in January 2001. Two years later, nonpenetrating glaucoma surgery with mitomycin-C (MMC) 0.02% was performed for uncontrolled glaucoma. Two months later, opacification of the anterior IOL surface was observed. The IOL was r...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2006.07.038
更新日期:2007-01-01 00:00:00