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 (MR), and autorefraction (AR) (Nidek AR-3300) were compared in 58 pseudophakic eyes of 44 patients with a mean age of 69.95 years +/- 8.6 (SD). The astigmatic values obtained from Tracey-1 and computerized videokeratography were also compared. Astigmatism values were compared using power vector analysis. RESULTS:The mean SEs measured by MR, Tracey, and AR were -0.76 diopter (D) +/- 0.96 (SD) (range 1.00 to -3.00 D), 0.37 +/- 0.64 D (range 1.68 to -1.49 D), and -0.44 +/- 1.13 D (range 1.63 to -3.50 D), respectively. The Pearson correlation coefficients between MR and Tracey values and between MR and AR values were high (r = 0.895 and r = 0.875, respectively; both P < .0001). However, the mean difference between the Tracey and MR values was 1.13 +/- 0.48 D (range 2.45 to -0.06 D) (P < .001). The mean cylindrical differences between MR and Tracey and between MR and AR were 0.03 +/- 0.51 D (range 1.22 to -1.07 D) (P = .709) and -0.30 +/- 0.62 D (range 0.50 to -2.25 D) (P = .003), respectively. Power vector analysis revealed difference vectors of -0.16 x 60 between Tracey and MR and -0.22 x 87 between AR and MR. CONCLUSIONS:Spherical and cylindrical refractive data obtained with the Tracey system correlated well with those derived from MR; however, there was a mean spherical error of approximately 1.10 D. Further work is required to refine the accuracy and range of this device.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Wang L,Misra M,Pallikaris IG,Koch DDdoi
10.1016/s0886-3350(01)01103-8subject
Has Abstractpub_date
2002-02-01 00:00:00pages
276-82issue
2eissn
0886-3350issn
1873-4502pii
S0886335001011038journal_volume
28pub_type
杂志文章abstract：:A 48-year-old man with cataract had uncomplicated phacoemulsification and implantation of a posterior chamber intraocular lens (IOL) into the continuous capsulorhexis. Three years later, part of the capsular bag and a haptic subluxated into the anterior chamber. At the time of repositioning surgery, partial zonular de...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(97)80127-7
更新日期：1997-11-01 00:00:00
abstract：:We describe a case of corneal chromoblastomycosis with Cladophialophora carrionii in a 69-year-old woman 4 weeks after clear corneal cataract surgery. The patient presented with right eye pain and decreased visual acuity of 20/100. Examination showed a deep posterior stromal keratitis accompanied by a dense fibrinous ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2011.03.007
更新日期：2011-05-01 00:00:00
abstract：PURPOSE:To find the incidence, contributing factors, outcomes, and clinical impact of intraoperative posterior capsule striae. SETTING:Iladevi Cataract & IOL Research Centre, Ahmedabad, India. METHODS:In a prospective study, 100 consecutive eyes had phacoemulsification and intraocular lens (IOL) (AcrySof MA30BA) impl...
journal_title：Journal of cataract and refractive surgery
pub_type： 临床试验,杂志文章
doi：10.1016/s0886-3350(99)00197-2
更新日期：1999-11-01 00:00:00
abstract：PURPOSE:To determine depth of focus and visual quality after implantation of a diffractive intraocular lens (IOL) and a refractive IOL. SETTING:University Eye Clinic, Vienna, Austria. METHOD:This study comprised 10 eyes of 9 patients with a diffractive IOL (3M 825x + 4) and 13 eyes of 9 patients with a refractive len...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(98)80262-9
更新日期：1998-05-01 00:00:00
abstract：PURPOSE:To determine whether donor eyes had previous refractive surgery using Orbscan (Bausch & Lomb Surgical) corneal topography. SETTING:Lions Eye Bank of Oregon, Portland, Oregon, USA, and Maisonneuve-Rosemont, Hospital, Montreal, Quebec, Canada. METHODS:Orbscan corneal topographies of 50 donor eyes from the Lions...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2005.12.035
更新日期：2006-02-01 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
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：PURPOSE:To evaluate and compare the tear-film dynamics in normal eyes and in eyes with mild dry-eye symptoms using a new noninvasive optical method based on a double-pass instrument. SETTING:Hospital Universitario Virgen de la Arrixaca, Murcia, Spain. DESIGN:Evaluation of diagnostic test or technology. METHODS:Dynam...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2011.03.036
更新日期：2011-08-01 00:00:00
abstract：PURPOSE:To determine the incidence of anterior capsule tears, at what stage of surgery they occurred, and their intraoperative behavior. SETTING:Ambulatory surgery center, Cincinnati Eye Institute, Cincinnati, Ohio, USA. METHODS:This 5-year retrospective study was of patients having phacoemulsification with posterior...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2006.05.013
更新日期：2006-10-01 00:00:00
abstract：:Lens manufacturers do not usually supply information about the central thickness of an intraocular lens optic. This paper describes a method to calculate the central lens thickness from variables normally supplied by the manufacturer, i.e., the total lens power in situ, the edge thickness, the optic diameter, and some...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)80278-7
更新日期：1993-01-01 00:00:00
abstract：PURPOSE:To evaluate the visual outcome of patients with posteriorly dislocated lens fragments after phacoemulsification managed with pars plana vitrectomy (PPV) and identify risk factors for poor visual outcome. SETTING:Vitreo-Retinal Service, St. Paul Eye Unit, Liverpool, United Kingdom. METHODS:The medical records ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(01)00750-7
更新日期：2001-08-01 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：:Positive pressure during cataract surgery can adversely affect the clinical outcome if the surgeon is unprepared. A variety of surgical maneuvers are described, including dry insertion of the phacoemulsification needle, capsule protection with the second instrument, dry cortical aspiration in an ophthalmic viscosurgic...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2006.06.011
更新日期：2006-09-01 00:00:00
abstract：PURPOSE:To evaluate the results of 4-point scleral fixation of posterior chamber intraocular lenses (PC IOLs) in children. SETTING:Mansoura Ophthalmic Center, Mansoura University, Mansoura, Egypt. METHODS:This retrospective study comprised 20 aphakic eyes of 20 children. Preoperative investigations proved the absence...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(02)01531-6
更新日期：2003-02-01 00:00:00
abstract：:Three cases are described in which a curvilinear lucency in the corneal stroma signified a surgical thermal injury. The "shark fin" appearance represents focal shrinkage of tissue within the incisional tunnel. ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2004.11.034
更新日期：2005-03-01 00:00:00
abstract：PURPOSE:To compare visual outcomes in normal and complicated laser in situ keratomileusis (LASIK) flaps constructed with a femtosecond laser. SETTING:Wilford Hall Ambulatory Surgical Center, San Antonio, Texas. DESIGN:Retrospective chart review. METHODS:The main outcome measures were uncorrected distance visual acui...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2015.05.024
更新日期：2015-11-01 00:00:00
abstract：:In eyes with low scleral rigidity, penetrating keratoplasty (PKP) is a high-risk procedure because forward movement of the lens-iris diaphragm can result in prolapse of intraocular contents, expulsive choroidal hemorrhage, and damage to the crystalline lens. We developed a method for safer PKP in eyes with low scleral...
journal_title：Journal of cataract and refractive surgery
pub_type： 临床试验,杂志文章
doi：10.1016/s0886-3350(99)00071-1
更新日期：1999-07-01 00:00:00
abstract：PURPOSE:To evaluate the use of 2-photon microscopy (TPM), which excites tissue autofluorescence, in detecting and calculating the grade of collagen corneal crosslinks, which are not visible through the slitlamp and in vivo confocal microscopy. SETTING:Departments of Ophthalmology, University of Lübeck, Lübeck, and Uni...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2010.06.068
更新日期：2010-12-01 00:00:00
abstract：PURPOSE:To study the perception of light distortion after refractive lens exchange (RLE) with diffractive multifocal intraocular lenses (IOLs). SETTING:Clínica Oftalmológica das Antas, Porto, Portugal. DESIGN:Retrospective comparative study. METHODS:Refractive lens exchange was performed with implantation of an AT L...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2014.07.033
更新日期：2015-03-01 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：:The effect of incision length, location, and shape on the structural integrity of the globe was examined using finite element analysis by comparing the radial deformation of the corneoscleral tissue adjacent to the incision. The results show that incision length had the greatest adverse effect, 12 mm incisions causing...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)80879-6
更新日期：1990-01-01 00:00:00
abstract：PURPOSE:To evaluate the impact of higher-order aberrations on depth of focus using an adaptive optics visual simulator. SETTING:Refractive Surgery Department, Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio, USA. METHODS:An adaptive optics simulator was used to optically introduce individual aberrations in eyes...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2009.05.059
更新日期：2009-11-01 00:00:00
abstract：PURPOSE:To evaluate visual outcomes and patient satisfaction after toric multifocal intraocular lens (IOL) implantation in patients with cataract and corneal astigmatism. SETTING:University Eye Clinic Maastricht, The Netherlands. DESIGN:Cohort study. METHODS:Patients with cataract, corneal astigmatism, and a motivat...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2011.05.041
更新日期：2011-11-01 00:00:00
abstract：PURPOSE:To compare the in vitro optical quality of multifocal apodized intraocular lenses (IOLs) at different focal points. SETTING:University of Valencia, Valencia, Spain. DESIGN:Experimental study. METHODS:The Acrysof Restor +3.0 diopter (D) multifocal IOL with 2 main foci (bifocal IOL) and the Finevision multifoc...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2012.12.038
更新日期：2013-06-01 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：: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 investigate the change in anterior, posterior, and net corneal power more than 18 months after photorefractive keratectomy (PRK) by RTVue anterior segment optical coherence tomography (OCT). SETTING:Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran. DESIGN:Prospective observational s...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1097/j.jcrs.0000000000000224
更新日期：2020-08-01 00:00:00
abstract：UNLABELLED:We describe a technique that uses the vitrector to perform successful lens aspiration and posterior chamber intraocular lens (IOL) implantation in children with spherophakia and anterior lens subluxation. After an anterior chamber maintainer is placed, the ocutome is introduced through a limbal incision to p...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2012.05.001
更新日期：2012-07-01 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：:Implantation of ultraviolet (UV) light-absorbing intraocular lenses and the manufacturers developing these lenses has significantly increased over the past few years. In this paper, the need for filtration of UV light by intraocular lens implants is briefly examined and various new product development aspects of a UV-...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(86)80011-6
更新日期：1986-05-01 00:00:00
