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 variation were calculated for each parameter. The mean cell density decreased from 2,835 to 2,677 cells/mm2, mean cell perimeter increased from 71.4 micron to 74.3 micron, and mean side length increased from 11.8 micron to 12.3 micron following surgery. The changes in these three parameters were statistically significant (P less than 0.05). The coefficient of variation of cell area (polymegathism) changed from 0.319 to 0.307, the hexagonality changed from 62.5% to 59.6%, and the cell shape changed from 0.872 to 0.867. The changes in these parameters were not statistically different before and after surgery. The group of patients that had no reported microperforations showed only a small decrease of cell density (1.6%), while the group of patients that had microperforations showed a large decrease of cell density (14.3%). The cell perimeter and side lengths showed a similar pattern. The group of corneas with the optical zone diameter less than 3.5 mm showed a decrease in mean cell density from 2,994 to 2,725 cells/mm2, and the cell shape changed from 0.874 to 0.866 following surgery. The changes in these parameters were statistically significant (P less than 0.05) before and after surgery. Among all factors associated with radial keratotomy, microperforation and a small diameter of central optical zone appear to be the two greatest risk factors.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Chiba K,Oak SS,Tsubota K,Laing RA,Goldstein J,Hecht Sdoi
10.1016/s0886-3350(87)80068-8subject
Has Abstractpub_date
1987-05-01 00:00:00pages
263-7issue
3eissn
0886-3350issn
1873-4502pii
S0886-3350(87)80068-8journal_volume
13pub_type
杂志文章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:PURPOSE:To evaluate the intraocular pressure (IOP) change and associated factors 6 months after phacoemulsification in eyes with primary angle-closure suspect (PACS) and eyes with primary angle closure (PAC) that had no medical therapy. SETTING:Singapore National Eye Center, Singapore, Singapore. DESIGN:Retrospective...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2017.03.031
更新日期:2017-06-01 00:00:00
abstract:PURPOSE:To report results of the National French Observational Database for Endophthalmitis (Observatoire National Des Endophtalmies [ONDE]). SETTING:Departments of ophthalmology at universities, general hospitals, and private clinics. METHODS:In this multicenter national interventional case series, data were collect...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jcrs.2008.10.018
更新日期:2009-01-01 00:00:00
abstract:PURPOSE:To evaluate a poly(methyl methacrylate) refractive, zonal-progressive multifocal intraocular lens (IOL) in patients requiring cataract surgery. SETTING:Department of Ophthalmology, Saiseikai Kurihashi Hospital, Saitama, Japan. METHODS:This open-label noncomparative study evaluated 58 eyes of 31 Japanese patie...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(99)00408-3
更新日期:2000-07-01 00:00:00
abstract:PURPOSE:To determine whether cell adhesion on an intraocular lens (IOL) in Japanese patients is affected by the optic material. SETTING:Department of Ophthalmology, Wakayama Medical University, Wakayama, Japan. DESIGN:Experimental study. METHODS:Intraocular lenses of various materials explanted from Japanese patient...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2011.04.001
更新日期:2011-07-01 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 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: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::We describe a new technique of transscleral intraocular lens fixation in the absence of adequate posterior capsular support. This technique of suture placement within the ciliary sulcus employs routinely used instruments, requires minimum manipulation, and has good visual outcome and negligible complications. We perfo...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(13)80053-3
更新日期:1994-01-01 00:00:00
abstract:PURPOSE:To prospectively evaluate the usefulness of a subconjunctival steroid injection given at the completion of cataract surgery in patients with diabetes mellitus. SETTING:University of Tokyo School of Medicine, Tokyo, Kaiya Eye Clinic, Hamamatsu, and Jyosai Hospital, Tokyo, Japan. METHODS:One hundred four eyes o...
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(01)00783-0
更新日期:2001-09-01 00:00:00
abstract::A retrospective study of 98 91Z anterior chamber intraocular lenses used with intracapsular cataract extraction was performed. Minimum follow-up was 12 months and average follow-up was two years seven months. These patients were part of a group of 113 91Z patients previously reported with minimum six-months follow-up ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(86)80104-3
更新日期:1986-07-01 00:00:00
abstract::A new instrument that aids in retreating or revising lamellar refractive surgery is described. The edge delineator and lifter can both delineate and lift the edge of a previously made corneal flap. ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(98)80252-6
更新日期:1998-05-01 00:00:00
abstract:PURPOSE:To compare the safety and efficacy of 0.025 mg/mL brilliant blue G (BBG) and an intracameral illuminator for visualizing the anterior capsule. SETTING:University-based tertiary referral center, South Korea. DESIGN:Retrospective cases series. METHODS:The medical records of patients with vitreous hemorrhage fo...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2016.03.038
更新日期:2016-07-01 00:00:00
abstract:PURPOSE:To evaluate the complication rate of corneal crosslinking (CXL) for primary keratectasia and to develop recommendations for avoiding complications. SETTING:Institut für Refraktive und Ophthalmo-Chirurgie, Zurich, Switzerland. METHODS:In a prospective study, eyes with verified progressive keratectasia had stan...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2009.03.035
更新日期:2009-08-01 00:00:00
abstract:PURPOSE:To measure the effect of spherical intraocular lens (IOL) implantation and conventional myopic laser in situ keratomileusis (LASIK) on peripheral ocular aberrations. SETTING:Visual and Ophthalmic Optics Laboratory, School of Optometry, and Institute of Health and Biomedical Innovation, Queensland University of...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2010.01.018
更新日期:2010-07-01 00:00:00
abstract:PURPOSE:To analyze the centration of intrastromal ring segments (Intacs, Addition Technology, Inc.) implanted using a femtosecond laser in eyes with keratoconus. SETTING:Kudret Eye Hospital, Ankara, Turkey. METHODS:In a retrospective noncomparative case series, the distance of deviation of the intrastromal ring segme...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2006.11.007
更新日期:2007-03-01 00:00:00
abstract::A series of 100 patients had cataract extraction with intraocular lens implantation by the endocapsular method of Galand. The astigmatism was assessed at two, six, and 18 weeks postoperatively. The incision and closure and the methods of correcting postoperative astigmatism are discussed. ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(89)80141-5
更新日期:1989-01-01 00:00:00
abstract::Cataract surgery can be safely performed in patients with Stevens-Johnson syndrome (SJS) with visually significant cataracts. Maintaining ocular surface integrity improves the prognosis of cataract surgery in this high-risk population. We present the outcome of cataract surgery in a retrospective chart review of 3 eye...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2004.07.023
更新日期:2005-04-01 00:00:00
abstract:PURPOSE:To evaluate the custom-contoured ablation pattern (C-CAP) method as a tool for providing customized laser ablations for decentered ablations based on corneal topography data. SETTING:Department of Ophthalmology, Stanford University, Stanford, California, USA. METHODS:In a prospective noncomparative interventi...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2003.12.052
更新日期:2004-08-01 00:00:00
abstract:PURPOSE:To assess the safety, efficacy, stability, and predictability of collagen copolymer toric phakic intraocular lens (pIOL) implantation to correct myopia and astigmatism in eyes with keratoconus. SETTING:Fernández-Vega Ophthalmological Institute, Oviedo, Spain. METHODS:This prospective study comprised keratocon...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2009.11.032
更新日期:2010-06-01 00:00:00
abstract:PURPOSE:To compare the safety and efficacy of Ozil Intelligent Phaco torsional microcoaxial phacoemulsification surgeries performed with 12-degree and 22-degree bent tips using the Infiniti Vision System. SETTING:Maltepe University School of Medicine Department of Ophthalmology, Istanbul, Turkey. DESIGN:Comparative c...
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.2013.03.002
更新日期:2013-08-01 00:00:00
abstract:PURPOSE:Previous studies have reported conflicting results on the influence of seasons on post-cataract surgery endophthalmitis incidences. This study aimed to investigate the seasonality associated with the incidence of postoperative endophthalmitis, and to evaluate its association with climate variables in South Kore...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2019.07.022
更新日期:2019-12-01 00:00:00
abstract:PURPOSE:To describe the indications, motivations, and outcomes of artificial iris exchange. SETTING:Stein Eye Institute. DESIGN:Consecutive case series. METHODS:Review of medical records of patients implanted with an artificial iris device who underwent a subsequent artificial iris exchange. RESULTS:Five patients w...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1097/j.jcrs.0000000000000321
更新日期:2020-12-01 00:00:00
abstract::We report one-year follow-up results on 23 eyes in which we performed myopic keratomileusis. The mean refraction changed from -11.09 diopters (D) preoperatively to -3.66 D postoperatively. In all but two cases, keratometry was reduced one year postoperatively. The average corneal thickness decrease was 0.139 mm. In ni...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(87)80042-1
更新日期:1987-07-01 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: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:UNLABELLED:Left ventricular assist devices (LVADs) have been increasingly used for 20 years in terminally ill patients with advanced heart failure or awaiting cardiac transplantation. Despite improvement in morbidity and mortality from use of these devices, quality of life may be limited by cataract. Access to cataract...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2014.01.024
更新日期:2014-04-01 00:00:00
abstract:PURPOSE:To compare carticaine 4% and lidocaine 2% for peribulbar anesthesia in cataract surgery. SETTING:Ain Shams and Cairo University Hospitals, Cairo, Egypt. METHODS:This prospective double-blind randomized study comprised 200 cataract patients assigned to 1 of 2 groups of 100 each based on type of anesthesia: car...
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(01)01140-3
更新日期:2002-03-01 00:00:00
abstract:PURPOSE:To assess the accuracy of surrogate decision making for elective cataract surgery. SETTING:Comprehensive Ophthalmology Department of Tertiary Care Hospital. METHODS:Decisions regarding elective cataract surgery of currently competent, elderly patients were compared with the predictions of patient-identified s...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2007.07.036
更新日期:2007-12-01 00:00:00
abstract:PURPOSE:To assess the effect of preoperative tear function on early changes in functional visual acuity (FVA) after laser in situ keratomileusis (LASIK). SETTING:Minamiaoyama Eye Clinic, Tokyo, Japan. METHODS:This prospective single-center study assessed the effect of preoperative and postoperative tear functions on ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2004.02.086
更新日期:2004-11-01 00:00:00