Abstract:
PURPOSE:To evaluate the contribution of Fourier analysis of videokeratographic data in the diagnosis of subclinical keratoconus and keratoconus. SETTING:Eye Institute of Thrace, Democritus University, Alexandroupolis, Greece. DESIGN:Observational case series. METHODS:The following Pentacam-derived parameters, resulting from Fourier decomposition of keratometric data, were evaluated for their diagnostic capacity using receiver operating curves: spherical component and eccentricity, maximum decentration, regular astigmatism in the center and in the periphery, mean astigmatism, irregularities, regular astigmatism in the center plus the irregularities, and total astigmatism. Logistic regression was performed to identify a combined diagnostic model. RESULTS:The study comprised 80 keratoconus eyes, 55 eyes diagnosed with subclinical keratoconus, and 50 normal eyes. Significant differences were detected in spherical eccentricity, maximum decentration, irregularities, regular astigmatism in the center and in the periphery, regular astigmatism in the center plus the irregularities, mean astigmatism, and total astigmatism parameters between the groups. Almost all parameters had high diagnostic ability in both study groups (area under the curve >90%). Among individual parameters, those with the highest predictive accuracy were the regular astigmatism in the center plus the irregularities (subclinical keratoconus 97.6%, keratoconus 98.8%) and the maximum decentration (subclinical keratoconus 91.4%, keratoconus 98.5%). Sufficient predictive accuracy (subclinical keratoconus 99.4, keratoconus 100%) was identified in a diagnostic model that combined the regular astigmatism in the center plus the irregularities and the maximum decentration. CONCLUSION:Fourier decomposition of keratometric data provided parameters with high accuracy in differentiating corneas with subclinical keratoconus from normal corneas and should be included to allow prompt diagnosis of keratoconus. FINANCIAL DISCLOSURE:None of the authors has a financial or proprietary interest in any material or method mentioned.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Sideroudi H,Labiris G,Georgatzoglou K,Ditzel F,Siganos C,Kozobolis Vdoi
10.1016/j.jcrs.2016.01.049subject
Has Abstractpub_date
2016-05-01 00:00:00pages
731-7issue
5eissn
0886-3350issn
1873-4502pii
S0886-3350(16)30083-9journal_volume
42pub_type
杂志文章abstract::We describe five routine phacoemulsification procedures in which a longitudinal split in the injector cartridge occurred during foldable intraocular lens (IOL) implantation. In some cases, this was associated with a broken lens. All lenses (STAAR AA-4203VF) were folded, and implantation was attempted through a 3.5 mm ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(96)80023-x
更新日期:1996-06-01 00:00:00
abstract:PURPOSE:To study the effect of glistenings on the optical quality of a hydrophobic acrylic intraocular lens (IOL). SETTING:David J. Apple Laboratory, Heidelberg, Germany. DESIGN:An in vitro laboratory study. METHODS:An accelerated aging protocol was used to induce glistenings (microvacuoles) in 38 hydrophobic acryli...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2019.01.025
更新日期:2019-07-01 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: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::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::We performed morphometric analysis of the central corneal endothelium on 24 eyes of 19 patients who had had anterior radial keratotomy. The endothelium was analyzed for a variety of parameters, including cell area, perimeter, side lengths, cell shape, and number of sides. Mean, standard deviation, and coefficient of v...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(87)80068-8
更新日期:1987-05-01 00:00:00
abstract::In 1984, our ophthalmology department switched from intracapsular cataract extraction (ICCE) to extracapsular cataract extraction (ECCE). We reviewed the postoperative incidence of retinal detachment (RD) in two consecutive series: (1) 604 eyes operated on by ICCE from 1982 to 1983 and (2) 1726 eyes operated on by ECC...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(13)80498-1
更新日期:1995-03-01 00:00:00
abstract::We report a case of a significant hyperopic shift 2 years after myopic photorefractive keratectomy with an interim of stability. The patient was an otherwise healthy man who reported a sudden change in vision when climbing to altitude. Medical considerations for refractive shifts should be looked at before retreatment...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2006.09.028
更新日期:2007-02-01 00:00:00
abstract::The results of implanting 269 3M multifocal intraocular lenses are analyzed and compared with those of monofocal lenses. Visual acuity results were excellent. In the best case group, 98% of eyes obtained a distance visual acuity of 20/40 or better and 96% of best cases obtained a functional reading capacity without su...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(13)81044-9
更新日期:1991-09-01 00:00:00
abstract:PURPOSE:To use the double-pass technique to evaluate the in vitro optical quality of foldable monofocal intraocular lenses (IOLs) used to correct aphakia. SETTING:Universitat Politècnica de Catalunya, Terrassa, and Instituto de Microcirugía Ocular de Barcelona, Barcelona, Spain; Universidad Nacional de Tucumán, Tucumá...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2009.03.022
更新日期:2009-08-01 00:00:00
abstract:PURPOSE:To evaluate patients' vision-related activity limitation before and after bilateral cataract surgery using the German version of the Catquest-9SF questionnaire. SETTING:Hanusch Hospital, Vienna, Austria, and Ophthalmic Clinic, Minden, Germany. DESIGN:Questionnaire development. METHODS:This prospective 2-cent...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jcrs.2012.11.028
更新日期:2013-05-01 00:00:00
abstract:PURPOSE:To investigate the incidence and clinical features of red blood cell (RBC)-coated intraocular lens (IOL) in breakthrough vitreous hemorrhage (VH) with subretinal hemorrhage (SRH) secondary to neovascular age-related macular degeneration (nAMD). SETTING:Seoul National University Bundang Hospital, Seongnam, Kore...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1097/j.jcrs.0000000000000549
更新日期:2020-12-09 00:00:00
abstract:PURPOSE:To analyze the changes in higher-order aberrations (HOAs) that occur after wavefront-optimized photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK). SETTING:Emory Eye Center and Emory Vision, Atlanta, Georgia, USA. METHODS:This retrospective analysis comprised eyes that had PRK or LASIK ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2008.10.032
更新日期:2009-02-01 00:00:00
abstract:PURPOSE:To study the safety and efficacy of refractive enhancement by flap lifting 5 and 10 years after laser in situ keratomileusis (LASIK). SETTING:Vissum Alicante, Spain. DESIGN:Retrospective case series. METHODS:Eyes with a flap lift at least 5 years after primary LASIK with a 3-month follow-up were evaluated. T...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2019.05.030
更新日期:2019-10-01 00:00:00
abstract:PURPOSE:To evaluate factors that predict the visual prognosis after cataract surgery in patients with Behçet disease. SETTING:The First Affiliated Hospital of Chongqing Medical University, Chongqing, China. DESIGN:Retrospective clinical study. METHODS:Patients with Behçet disease and complicated cataract had phacoem...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2012.04.027
更新日期:2012-08-01 00:00:00
abstract::A 78-year-old woman developed a severe fibrinous anterior chamber reaction 1 day after uneventful clear corneal incision cataract extraction with intraocular lens implantation. There was no history of uveitis or diabetes, and the fibrin responded immediately to topical steroids. The patient was followed closely to rul...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(03)00075-0
更新日期:2003-08-01 00:00:00
abstract:PURPOSE:To compare vision-related quality of life after binocular implantation of the Tecnis Z9000 intraocular lens (IOL) (Advanced Medical Optics) or the AcrySof MA60AC IOL (Alcon). SETTING:Moorfields Eye Hospital, London, United Kingdom. METHODS:The study was a double-masked prospective randomized controlled trial....
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.2007.04.039
更新日期:2007-09-01 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 compare measured and calculated postoperative anterior chamber depths (ACDs). SETTING:Department of Ophthalmology and Institute of Medical Physics, University of Vienna, Vienna, Austria, and Department of Ophthalmology, University of Mainz, Mainz, Germany. METHODS:The postoperative ACD was measured in 189 ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(03)00414-0
更新日期:2003-11-01 00:00:00
abstract::A 56-year-old man developed a nasal field defect in his left eye 3 months after a traumatic accident. An examination showed a posterior subcapsular cataract in the left eye with no neurologic deficits. Humphrey 24-2 visual field testing revealed a nasal hemianopsia in the left eye. After cataract extraction and intrao...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(99)00152-2
更新日期:1999-09-01 00:00:00
abstract:PURPOSE:To evaluate the efficacy and safety of phenylephrine 1.0%-ketorolac 0.3% (Omidria) for maintenance of mydriasis during, and reduction of ocular pain after, cataract surgery. SETTING:Twenty centers in the United States and the Netherlands. DESIGN:Prospective randomized clinical trials. METHODS:Patients having...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.jcrs.2015.10.053
更新日期:2015-10-01 00:00:00
abstract:PURPOSE:To evaluate changes in anterior chamber depth (ACD) and intraocular pressure (IOP) after phacoemulsification in eyes with occludable angles and compare the results with those in eyes with normal open angles. SETTING:Eye Clinic, Ipoh General Hospital, Ipoh, Perak, Malaysia. METHODS:Patients with nonglaucomatou...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2010.02.024
更新日期:2010-08-01 00:00:00
abstract:PURPOSE:To compare two standard small incision techniques for cataract surgery--clear corneal incision and sclerocorneal incision--with regard to postoperative disturbance of the blood-aqueous barrier (BAB). SETTING:Department of Ophthalmology, University of Vienna, Austria. METHODS:This prospective comparative study...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(98)80296-4
更新日期:1998-04-01 00:00:00
abstract:PURPOSE:To determine the reproducibility of morphoscopic contrast sensitivity test values in healthy subjects using the Visual Capacity Analyzer (VCA) (L2 Informatique). SETTING:Institute of Vision Research, Department of Ophthalmology, Yong-Dong Severance Hospital, Yonsei University, Seoul, South Korea. METHODS:Five...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(03)00044-0
更新日期:2003-09-01 00:00:00
abstract:PURPOSE:To assess the rotation and centration stability of the new design features of a 1-piece aspheric hydrophobic acrylic intraocular lens (IOL). SETTING:National Eye Hospital, Cairo, Egypt. DESIGN:Randomized clinical trial. METHODS:Patients in this study had implantation of a 1-piece Tecnis 1 ZCB00 IOL or a 3-pi...
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.2012.09.020
更新日期:2013-03-01 00:00:00
abstract:PURPOSE:To examine the psychometric properties of the Visual Activities Questionnaire (VAQ) and each of its subscales in a modern cataract population using Rasch analysis and if flawed, to revise the VAQ and create a valid measure that maximizes its measurement properties. SETTING:Flinders Eye Centre, Flinders Medical...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2009.05.058
更新日期:2009-11-01 00:00:00
abstract::We report 3 cases of bilateral piggyback lens implantation in which late hyperopic shift occurred associated with Elschnig pearl formation in the peripheral interface between the 2 lenses. ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(99)00034-6
更新日期:1999-06-01 00:00:00
abstract::A modified version of peribulbar anesthesia is described. An analysis of 230 consecutive ophthalmic procedures including cataract surgery, penetrating keratoplasty, and scleral buckling demonstrates the safety and effectiveness of this modified peribulbar anesthesia technique. ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(88)80156-1
更新日期:1988-07-01 00:00:00
abstract:PURPOSE:To investigate whether topical diclofenac sodium 0.1% solution (Voltaren Ophthalmic) is as efficacious as topical ketorolac tromethamine 0.5% solution (Acular) in the treatment of established, chronic cystoid macular edema (CME) after uneventful phacoemulsification cataract extraction with posterior chamber int...
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(03)00233-5
更新日期:2003-12-01 00:00:00
abstract:PURPOSE:To retrospectively evaluate the incidence of neodymium: YAG (Nd:YAG) laser capsulotomies for posterior capsule opacification (PCO) in eyes receiving one of two types of capsular-bag-fixated silicone posterior chamber intraocular lenses (IOLs) over 7 years. SETTING:John Moran Eye Center, University of Utah, Sal...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(96)80088-5
更新日期:1996-01-01 00:00:00