Abstract：
PURPOSE:To assess the feasibility of determining intraocular lens (IOL) power by measurement of the central optic thickness using clinically available Scheimpflug imaging (Pentacam, Oculus). SETTING:King's College Hospital Ophthalmology Department, London, United Kingdom. METHODS:Sixty-seven eyes were assessed 1 month after uneventful phacoemulsification with in-the-bag implantation of AcrySof MA60AC IOLs (Alcon). The correlation between IOL thickness measurement and IOL power was calculated. Repeatability of central optic thickness measurement was determined from 10 successive scans of 4 patients. RESULTS:Within-subject standard deviation increased with the subject mean. The coefficient of variability was 1.4%. Measured lens thickness was highly correlated with lens power (R(2) = 0.94, P<.001). Over the measured range, 95% confidence intervals varied between +/-0.83 diopters (D) and +/-0.92 D. CONCLUSIONS:Central IOL thickness measurements with the Pentacam Scheimpflug camera were highly repeatable and closely correlated with the known IOL power. The IOL power, calculated from a regression equation, is likely to be less than +/-1.00 D away from the actual power. Approximate in vivo IOL power determination is feasible with clinically available Scheimpflug imaging. This could be applied clinically in cases of unexplained postoperative refractive error.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Turner SJ,Lee EJ,Hu V,Hollick EJdoi
10.1016/j.jcrs.2007.02.023subject
Has Abstractpub_date
2007-06-01 00:00:00pages
1041-4issue
6eissn
0886-3350issn
1873-4502pii
S0886-3350(07)00449-Xjournal_volume
33pub_type
杂志文章abstract：:A 59-year-old patient who had photorefractive keratectomy (PRK) to correct high unilateral myopia developed a progressive nuclear cataract. Phacoemulsification and intraocular lens (IOL) implantation were performed. However, determination of IOL power using automated keratometry and computerized videokeratography was ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(99)80024-8
更新日期：1999-01-01 00:00:00
abstract：PURPOSE:To evaluate and compare the efficacy, predictability, and safety of hyperopic laser in situ keratomileusis (H-LASIK) for the correction of consecutive hyperopia after myopic-LASIK (M-LASIK) and radial keratotomy (RK). SETTING:The Eye Institute of Utah, Salt Lake City, Utah, USA. METHODS:Seventy-seven eyes of ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(03)00051-8
更新日期：2003-05-01 00:00:00
abstract：PURPOSE:To evaluate precision pulse capsulotomy (PPC) in simple and challenging cataract surgery cases. SETTING:Clínica Quesada, San Salvador, El Salvador. DESIGN:Prospective case series. METHODS:This single-center prospective study assessed cataract surgeries with anterior capsulotomy performed using a PPC device t...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2017.01.023
更新日期：2017-05-01 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：PURPOSE:To compare the risk for microbial keratitis in contact lens wearers stratified by wear schedule with the risk after laser in situ keratomileusis (LASIK). SETTING:Hamilton Eye Institute and Department of Ophthalmology, University of Tennessee Health Science Center, Memphis, Tennessee, USA. DESIGN:Comparative m...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章,meta分析
doi：10.1016/j.jcrs.2016.10.022
更新日期：2017-01-01 00:00:00
abstract：:Nordan epikeratophakia technique (NET) is described for the treatment of hyperopia and the results in eight eyes are reported (mean = +5.09 +/- 0.85 diopters preoperatively and -2.09 +/- 1.22 diopters postoperatively). The Nordan epikeratophakia technique is a modification of Kaufman-McDonald epikeratophakia with adva...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(89)80033-1
更新日期：1989-11-01 00:00:00
abstract：PURPOSE:To examine the role of high vacuum and aspiration settings on efficiency using a transversal ultrasound (US) machine. SETTING:John A. Moran Eye Center Laboratory, University of Utah, Salt Lake City, Utah, USA. DESIGN:Experimental study. METHODS:Porcine lens nuclei were incubated in formalin for 2 hours and t...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2018.05.031
更新日期：2018-11-01 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 study the change in postoperative position of an angulated, 3-piece, foldable acrylic intraocular lenses (IOLs) and evaluate the effect of a sharp posterior optic edge compared with that of a round optic edge on the change in postoperative anterior chamber depth (ACD). SETTING:Department of Ophthalmology, U...
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(02)02049-7
更新日期：2003-10-01 00:00:00
abstract：:Soon after the diagnosis of pellagra in a 20-year-old patient with beta thalassemia, bilateral intumescent cataracts rapidly developed. We believe the patient's crystalline lenses were at an increased oxidative state due to iron overload from the thalassemia. Depletion of the lens epithelial cells of an important anti...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2007.05.011
更新日期：2007-09-01 00:00:00
abstract：:The anterior chamber depth was measured in 15 eyes with sulcus placed (Group 1) and 12 eyes with bag placed (Group 2) IOGEL PC-12 lenses, and in 11 eyes with bag placed IOGEL 1103 lenses (Group 3). The mean anterior chamber depth was 3.29 mm in Group 1, 4.17 mm in Group 2, and 4.16 mm in Group 3. The difference betwee...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)81017-6
更新日期：1990-11-01 00:00:00
abstract：PURPOSE:To evaluate anterior chamber angle alterations after phakic intraocular lens (pIOL) implantation using the Pentacam rotating Scheimpflug camera (Oculus) and the effect on intraocular pressure (IOP) and anterior chamber inflammation. SETTING:Department of Ophthalmology, Keio University School of Medicine, Tokyo...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2008.04.033
更新日期：2008-08-01 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：PURPOSE:To compare the variance in manifest refraction spherical equivalent (MRSE) after photorefractive keratectomy (PRK) with mitomycin-C (MMC), PRK without MMC, and laser in situ keratomileusis (LASIK) for the treatment of myopic astigmatism. SETTING:Jules Stein Eye Institute, University of California, Los Angeles,...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2014.02.048
更新日期：2014-12-01 00:00:00
abstract：PURPOSE:To prospectively investigate the incidence, associated factors, and prognostic significance of relative afferent pupillary defects (RAPDs) in eyes with less severe cataract than in contralateral eyes. SETTING:Department of Ophthalmology, Seoul Municipal Boramae Hospital, College of Medicine, Seoul National Uni...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2003.11.022
更新日期：2004-01-01 00:00:00
abstract：UNLABELLED:We highlight potential problems and pitfalls in cases of Salzmann nodular degeneration by reporting the case of an 84-year-old man with reduced visual acuity due to particularly extensive bilateral Salzmann nodules and moderate cataracts. Large annular Salzmann lesions were removed by superficial keratectomy...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2015.10.037
更新日期：2015-11-01 00:00:00
abstract：PURPOSE:To develop and test the validity of a surgical competency assessment tool for simulated small-incision cataract surgery (SICS). SETTING:Participating ophthalmologists contributed from 8 countries. DESIGN:Qualitative and quantitative development and evaluation of face and content validity of an assessment rubr...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章,多中心研究
doi：10.1016/j.jcrs.2019.04.010
更新日期：2019-09-01 00:00:00
abstract：:We describe a technique to prevent continuous vitreous hydration during phacoemulsification in eyes with lenticular coloboma. The hydration results from communication between the anterior and posterior chambers from the edges of the colobomatous defect. To avoid this, a valved trocar is placed at the pars plana site a...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2016.10.028
更新日期：2017-02-01 00:00:00
abstract：UNLABELLED:We present a 58-year-old man who had cataract surgery in his right eye 8 months after femtosecond laser intrastromal presbyopia treatment (Intracor). The intraocular lens (IOL) power was calculated using the standard optical biometry data and the Holladay I formula without adjusting factors. Routine cataract...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2012.04.023
更新日期：2012-07-01 00:00:00
abstract：PURPOSE:To investigate the magnitude of postoperative astigmatism in children having cataract extraction with intraocular lens (IOL) implantation through a 3.0 mm superior clear corneal incision. SETTING:Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, Indiana, USA. METHODS:This retro...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2004.01.019
更新日期：2004-09-01 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：:Carbachol instilled in 125 eyes at the time of extracapsular cataract extraction and posterior chamber lens insertion had a statistically significant effect on lowering the postoperative intraocular pressure (IOP) at 24 hours (average IOP 14.0 mm Hg) and at 72 hours (average IOP 11.6 mm Hg) (P less than .001). The per...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(88)80034-8
更新日期：1988-11-01 00:00:00
abstract：PURPOSE:To provide mathematical tools for selecting intraocular lens (IOL) power for normal eyes and for "odd" eyes, particularly after corneal refractive surgery. SETTING:Universitats-Augenklinik, Mainz, Germany. METHODS:First, IOL power is selected based on the radii and numerical eccentricity of the cornea, extrac...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2004.09.016
更新日期：2005-03-01 00:00:00
abstract：PURPOSE:To compare the accuracy of a handheld infrared digital pupillometer and digital infrared photography for measurement of the dark-adapted pupil diameter. SETTING:Department of Ophthalmology and Visual Sciences, Texas Tech University Health Sciences Center, Lubbock, Texas, USA. METHODS:The right horizontal pupi...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2009.09.025
更新日期：2010-02-01 00:00:00
abstract：PURPOSE:To characterize the mean topographic shape of the limbus of a normal human eye and determine whether it depends on age or refractive power. SETTING:University of Manchester, Manchester, United Kingdom. DESIGN:Prospective case series. METHODS:Participants with no previous ocular surgeries were included in thi...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2017.02.027
更新日期：2017-05-01 00:00:00
abstract：PURPOSE:To describe 7 patients who developed ectasia following laser in situ kerato-mileusis (LASIK). SETTING:Instituto de la Visión, Buenos Aires, Argentina. METHODS:In this retrospective study of 7 patients, visual acuity, refraction, pachymetry, and corneal topography were examined before and after the refractive ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(01)00799-4
更新日期：2001-09-01 00:00:00
abstract：PURPOSE:To determine the astigmatic effect of a supero-oblique clear corneal phacoemulsification cataract incision. SETTING:A university-based general ophthalmology practice. METHODS:All eyes having supero-oblique phacoemulsification cataract surgery using the right hand of a single surgeon between April 17, 1997, an...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(99)00074-7
更新日期：1999-07-01 00:00:00
abstract：:A 77-year-old woman had uneventful phacoemulsification. Postoperative examination revealed that chloramphenicol ointment instilled in the conjunctival fornix had entered the anterior chamber and smeared the intraocular lens (IOL). Immediate surgical removal of the ointment with IOL exchange was performed. The eye sett...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(02)01503-1
更新日期：2003-03-01 00:00:00
abstract：:We report a case of bilateral infectious keratitis occurring as a complication of bilateral simultaneous laser in situ keratomileusis enhancement procedures. Corneal scraping from the interface of both eyes grew Staphylococcus aureus. The infection cleared after treatment with fortified cefazolin, fortified gentamicin...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(01)01232-9
更新日期：2002-04-01 00:00:00
abstract：PURPOSE:To assess the effect of folding procedures on modulation transfer function (MTF) and resolving power (RP) in soft acrylic intraocular lenses (IOLs). SETTING:Faculty of Engineering, Chiba University, Chiba, Japan. METHODS:Folding procedures and other manipulations were performed on +18.0 diopter soft acrylic l...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(96)80098-8
更新日期：1996-01-01 00:00:00
