Abstract：
PURPOSE:To delineate the learning curve for a beginning refractive surgeon using the centrifugal (American) technique. SETTING:Naval Medical Center, San Diego, California, USA. METHODS:The first 100 radial keratotomy (RK) cases (51 patients) of one surgeon, divided into five sequential groups of 20, were retrospectively reviewed. All patients had RK using the American technique. Emmetropia was the goal in all patients. Groups were compared with respect to preoperative refractive status, age, sex, and outcome. Outcomes analysis included visual acuity, refractive error, complications, and enhancement rates. Data were reviewed preoperatively and 1 and 3 months postoperatively. RESULTS:All five groups were age and sex matched. There was no difference in preoperative refractive error among the five groups. Sequential improvement in early postoperative refractive error from a mean of -1.73 diopters (D) +/- 1.00 (SD) (first 20) to 0.45 +/- 0.55 D (last 20) (P < .001) and decreased enhancement rates from 50% (first 20) to 0% (last 20) (P = .002) were statistically significant. Visual acuity at 1 month was 20/40 or better in 47% of patients in Group 1 (first 20), whereas all patients in Group 5 (last 20) had an acuity better than 20/40 (P < .001). There was no significant difference in complication rates among the five groups. CONCLUSION:The results of RK using the American technique can improve significantly with surgeon experience. Enhancement rates decreased with experience, and there was no difference in complication rates during the learning period of one surgeon.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Blanton CL,Schallhorn SC,Tidwell JLdoi
10.1016/s0886-3350(98)80286-1subject
Has Abstractpub_date
1998-04-01 00:00:00pages
471-6issue
4eissn
0886-3350issn
1873-4502pii
S0886-3350(98)80286-1journal_volume
24pub_type
杂志文章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：PURPOSE:To theoretically compare the corneal stress distribution of laser in situ keratomileusis (LASIK) with the stress distribution of small-incision lenticule extraction. SETTING:Cleveland Clinic Cole Institute, Cleveland, and The Ohio State University, Columbus, Ohio, USA. DESIGN:Computational modeling study. ME...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2013.08.065
更新日期：2014-06-01 00:00:00
abstract：:A specially designed grid and software used to assess the postoperative rotation of a toric intraocular lens (IOL) are described. Postoperatively, a digital retroillumination image of the patient is taken and this image is superimposed on the grid. The software determines the center of the IOL. A prominent episcleral ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2008.10.057
更新日期：2009-03-01 00:00:00
abstract：PURPOSE:To evaluate survival and the risk for mortality after cataract surgery in relation to individual-level and socioeconomic factors in Scotland over 3 decades. SETTING:Linked healthcare data, United Kingdom. DESIGN:Representative population-based study. METHODS:A 5% random sample of Scottish decedents linked to...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2017.01.018
更新日期：2017-04-01 00:00:00
abstract：PURPOSE:To ascertain whether the change in refraction caused by paired lamellating corneal incisions in cadaver eyes could be achieved in living eyes and whether wound healing influences this effect. SETTING:Virchow Hospital Eye Clinic, Humboldt University, Berlin, Germany. METHODS:This prospective study included 45 ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(97)80342-2
更新日期：1997-03-01 00:00:00
abstract：PURPOSE:To evaluate long-term intraocular pressure (IOP) control after extracapsular cataract extraction (ECCE) with posterior chamber intraocular lens (IOL) implantation in patients with primary angle-closure glaucoma. SETTING:Ophthalmology Department, Groote Schuur Hospital, Cape Town, South Africa. METHODS:This re...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(97)80255-6
更新日期：1997-07-01 00:00:00
abstract：:We describe a small-incision technique that reduces the phacoemulsification time. It reduces the risk for strong intraocular inflammation after surgery and posterior capsule rupture during surgery in young patients with uveitis. ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2008.03.047
更新日期：2008-08-01 00:00:00
abstract：:We describe a modification of the original 14C Morcher capsular tension ring. The new ring, the Henderson capsule tension ring (HCTR, Morcher), is an open C-shaped loop made of poly(methyl methacrylate). It has 8 equally spaced indentations of 0.15 mm to improve the ease of removing nuclear and cortical material while...
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.2007.05.041
更新日期：2007-10-01 00:00:00
abstract：:Horizontal chopping is effective for endocapsular nucleofractis. We describe pop and chop, a variant of chopping that enables an easy first crack and initial segment removal. It involves partial extracapsular prolapse of the nucleus prior to the initial chop. It is particularly useful when hydrodissection results in p...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(03)00339-0
更新日期：2003-11-01 00:00:00
abstract：PURPOSE:To compare ocular surface fluid ingress into the anterior chamber at the end of microcoaxial, standard coaxial, and bimanual phacoemulsification using trypan blue as the quantifying tracer. SETTING:Iladevi Cataract and IOL Research Centre, Ahmedabad, India. METHODS:This prospective randomized observational st...
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.2008.03.015
更新日期：2008-06-01 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：PURPOSE:To present a complex surgical technique used for the management of luxated crystalline lenses and evaluate treatment results. SETTING:Department of Ophthalmology, Medical University of Lodz, Lodz, Poland. METHODS:This prospective study involved 29 consecutive patients (30 eyes) with the mean age of 60.3 years...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2005.04.039
更新日期：2005-11-01 00:00:00
abstract：PURPOSE:To evaluate the long-term impact of bilateral cataract surgery on postoperative complications, influence of age at surgery on the pattern of axial growth and central corneal thickness (CCT), and visual and orthoptic assessment in microphthalmic eyes. SETTING:Iladevi Cataract and IOL Research Centre, Ahmedabad,...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2015.10.005
更新日期：2015-09-01 00:00:00
abstract：PURPOSE:To investigate the accuracy and predictability of intraocular lens (IOL) power calculation in postoperative photorefractive keratectomy (PRK) eyes. SETTING:Gimbel Eye Centre, Calgary, Alberta, Canada. METHODS:The results in 5 cataract surgery eyes that had had PRK were analyzed retrospectively. Target refract...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(00)00480-6
更新日期：2000-08-01 00:00:00
abstract：UNLABELLED:We report a 66-year-old patient who presented with increasing hyperopia, astigmatism, and presbyopia in both eyes 8 years after bilateral laser in situ keratomileusis (LASIK) and LASIK enhancement in the left eye aiming for spectacle independence. Bilateral multifocal toric Lentis Mplus intraocular lenses (I...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2012.08.042
更新日期：2012-11-01 00:00:00
abstract：:A transition from trabeculectomy to nonpenetrating trabecular surgery (NPTS) is proposed under the name of sclerotrabeculectomy. The technique, which is aimed at facilitating the transition to NPTS, is a modification of both penetrating and nonpenetrating techniques. Sclerotrabeculectomy uses a more superficial sclero...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(02)01363-9
更新日期：2002-12-01 00:00:00
abstract：:A surgical method for managing poorly dilating pupils preoperatively is presented. A fine polypropylene suture is preplaced through the inferior iris sphincter prior to an inferior radial iridotomy in preparation for nucleus fracture endolenticular phacoemulsification. Placing the suture prior to the iridotomy assures...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)80110-1
更新日期：1992-09-01 00:00:00
abstract：PURPOSE:To evaluate the agreement of ocular measurements obtained with a new optical biometer (AL-Scan) and a previously validated optical biometer (Lenstar). SETTING:Eye Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China. DESIGN:Prospective observational cross-sectional study. METHODS:For a comprehens...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2015.05.042
更新日期：2016-01-01 00:00:00
abstract：PURPOSE:To report the incidence, pathogenesis, and management of pupillary capture after combined phacoemulsification with intraocular lens (IOL) implantation and vitreoretinal surgery. SETTING:Oxford Eye Hospital, The Radcliffe Infirmary, Oxford, United Kingdom. METHODS:This retrospective case review comprised 12 pa...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(02)01212-9
更新日期：2002-09-01 00:00:00
abstract：:An alternative technique to manage pediatric cataracts comprises a pars plana lensectomy and anterior vitrectomy with anterior and posterior capsulotomies and posterior chamber heparin-surface-modified intraocular lens (IOL) implantation in the ciliary sulcus through a scleral tunnel. The surgical results in 7 eyes of...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(00)00298-4
更新日期：2000-04-01 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：: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：:The complement activation potential of surface modified (passivated) poly(methyl methacrylate) (PMMA) intraocular lenses (IOLs) with polypropylene loops was compared to that of standard PMMA IOLs with polypropylene loops. Both lens types were incubated in human sera for six hours and then the C3a and C5a levels were m...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)80243-x
更新日期：1991-03-01 00:00:00
abstract：PURPOSE:To determine whether frozen cultured sheets of human allogeneic epidermal keratinocytes (CEAK) improved wound repair after experimental corneal ablation by photorefractive keratectomy (PRK). SETTING:Hospital "Luis Sanchez Bulnes" de la Asociación para Evitar la Ceguera en Mexico, I.A.P, and Department of Cell ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(01)01349-9
更新日期：2002-09-01 00:00:00
abstract：:We examined the use of a geometric model to explain the effects of radial keratotomy (RK) on corneal topography based on wound gape of radial incisions. Histopathologic studies of healed human RK incisions revealed incision gape in Bowman's membrane and anterior stroma, with intervening epithelial ingrowth or fibrous ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)80850-4
更新日期：1991-07-01 00:00:00
abstract：PURPOSE:To describe the use of a motorized milling drill to perform nonpenetrating glaucoma surgery and to assess its safety. SETTING:Instituto Oftalmológico de Alicante, Miguel Hernandez University, School of Medicine, Alicante, Spain. METHODS:This prospective noncomparative study included 16 eyes (13 patients) diag...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2003.11.052
更新日期：2004-07-01 00:00:00
abstract：PURPOSE:To compare the accuracy of intraocular lens power prediction for eyes with average keratometry (K) readings greater than 46.00 diopters (D) and lower than 42.00 D. SETTING:Ein-Tal Eye Center, Tel-Aviv, Israel. DESIGN:Retrospective case series. METHODS:Eyes having cataract extraction surgery with steep and fl...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2017.06.036
更新日期：2017-09-01 00:00:00
abstract：:Subluxated cataractous and clear lenses are commonly treated by limbal or pars plana lensectomy followed by primary or secondary intraocular lens (IOL) implantation. Adjunctive capsular prosthetic devices have facilitated lens removal and IOL centration in these challenging cases but have also added complexity and pot...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2009.05.019
更新日期：2009-10-01 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：PURPOSE:To assess the efficacy of sublingual lorazepam in inducing amnesia when used as a premedication for peribulbar anesthesia. SETTING:Department of Ophthalmology in a large district general hospital. METHODS:Following local ethical committee approval, a prospective, randomized, placebo-controlled, double-blind s...
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)80033-8
更新日期：1997-12-01 00:00:00
