Abstract：
PURPOSE:To determine the physical and mechanical conditions of an impacting air bag that causes corneal rupture in a post-radial keratotomy (RK) eye using a simulation model of the human eye. SETTING:Numerical simulation study on a computer. METHODS:The simulations were performed by a computer using the finite element analysis program PAM-CRASH (Nihon ESI). The air bag was set to impact the surface of a post-RK eye with 4, 6, or 8 corneal incisions at various velocities. Strain on the corneal tissue including scarred incisions exceeding 9.0% was assumed to indicate the possibility of corneal rupture. RESULTS:At a medium velocity of 30 m/s, corneal rupture was likely to occur. At an air-bag impact velocity of 40 m/s, 3 of 4, 5 of 6, and 8 of 8 incisions were likely to rupture in the case of 4-, 6-, and 8-incision procedures, respectively, leading to likely globe rupture in all situations. Lacerations extended beyond the incisions and involved the intact cornea at a velocity of 40 m/s. If the corneal tissue strength reduction was increased to 90%, most incisions were likely to rupture at impact velocities greater than 35 m/s in all incision procedures. CONCLUSIONS:The results could partly reflect a reported case of globe rupture after RK and suggest that severe ocular trauma can be caused in the post-RK eye by air bags at ordinary impact velocities.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Uchio E,Ohno S,Kudoh K,Kadonosono K,Andoh K,Kisielewicz LTdoi
10.1016/s0886-3350(01)00966-xsubject
Has Abstractpub_date
2001-11-01 00:00:00pages
1847-53issue
11eissn
0886-3350issn
1873-4502pii
S0886-3350(01)00966-Xjournal_volume
27pub_type
杂志文章abstract：PURPOSE:To evaluate the efficacy, safety, predictability, and surgically induced astigmatism (SIA) of laser in situ keratomileusis (LASIK) for the correction of myopia and myopic astigmatism. SETTING:Department of Ophthalmology, National Taiwan University Hospital, Taipei, Taiwan. METHODS:This retrospective study com...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(01)01071-9
更新日期：2001-12-01 00:00:00
abstract：PURPOSE:To use capsule dyes to enhance visualization to learn and perform various critical steps of the phacoemulsification procedure in a laboratory setting using postmortem human eyes. SETTING:Center for Research on Ocular Therapeutics and Biodevices, Storm Eye Institute, Medical University of South Carolina, Charle...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(00)00363-1
更新日期：2000-07-01 00:00:00
abstract：PURPOSE:To determine whether pupil stretch during phacoemulsification affects postoperative best corrected visual acuity (BCVA), intraocular pressure (IOP), and inflammation compared with results in patients without pupil stretch. METHODS:A retrospective analysis of 115 eyes that had pupil stretch during phacoemulsifi...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2006.03.010
更新日期：2006-07-01 00:00:00
abstract：:Most surgical procedures involving the anterior segment of the eye disrupt the normal organization of corneal innervation. Since denervation of the cornea results in impaired epithelial wound healing, increased epithelial permeability, decreased epithelial metabolic activity, and loss of cytoskeletal structures associ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章,评审
doi：10.1016/s0886-3350(98)80237-x
更新日期：1998-10-01 00:00:00
abstract：:Two cases of intrastromal corneal ring (Intacs, Addition Technology) implantation to treat post-laser in situ keratomileusis (LASIK) ectasia developed progressive slippage of the flap over the stromal bed, resulting in progressive flattening of the affected meridian. The flattening was thought to have occurred because...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2008.06.049
更新日期：2008-12-01 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：UNLABELLED:A 22-year-old white man presented with photopsia of 3-year duration despite a corrected distance visual acuity of 20/20 in both eyes. Ophthalmic examination revealed multiple irregularly shaped white cortical opacifications of the lens in both eyes but no other significant ocular findings. One year after the...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2016.06.007
更新日期：2016-07-01 00:00:00
abstract：PURPOSE:To evaluate the long-term therapeutic efficacy of phacoemulsification with intraocular lens (IOL) implantation in treating phacomorphic glaucoma. SETTING:Ophthalmology Department, Maryknoll Hospital, Busan, Korea. METHODS:This study evaluated eyes that had phacoemulsification with IOL implantation to treat ph...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2009.11.023
更新日期：2010-05-01 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：:Traumatic aniridia and aphakia occurred in the left eye of a 22-year-old man who had had Artisan (Ophtec) phakic intraocular lens (IOL) implantation. Aniridia was probably the result of the relatively large wound used to implant the nonfoldable IOL. Although the eye had severe traumatic damage, vision was recoverable ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2007.03.037
更新日期：2007-07-01 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 compare the outcomes of implantation of 2 models of intrastromal corneal ring segments (ICRS) to manage keratoconus. SETTING:Kartal Training and Research Hospital, Istanbul, Turkey. METHODS:This study evaluated eyes with keratoconus that had implantation of Keraring ICRS (Group A) or Intacs ICRS (Group B)....
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2009.12.031
更新日期：2010-06-01 00:00:00
abstract：PURPOSE:To assess whether iris-claw intraocular lenses (IOLs) undergo gravitation-dependent changes in position and refraction. SETTING:Tertiary referral center, Bern, Switzerland. DESIGN:Observational case study. METHODS:Patients with a history of pars plana vitrectomy and IOL exchange with implantation of an aphak...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2016.07.033
更新日期：2016-10-01 00:00:00
abstract：PURPOSE:To compare short-term refractive and visual acuity outcomes after topography-guided laser in situ keratomileusis (LASIK) planned with a new topography analysis system to those based on the manifest refraction. SETTING:Four clinical sites in the United States. DESIGN:Double-arm, nonmasked, nonrandomized retros...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1097/j.jcrs.0000000000000176
更新日期：2020-06-01 00:00:00
abstract：PURPOSE:To evaluate the characteristics of higher-order aberrations (HOAs) in eyes with pellucid marginal corneal degeneration (PMCD). SETTING:Department of Ophthalmology, Osaka University Medical School, Osaka, Japan. METHODS:Ocular HOAs were measured by aberrometry in 20 eyes with PMCD (PMCD group), 76 eyes with ke...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2008.06.038
更新日期：2008-11-01 00:00:00
abstract：:A surgical draping technique is presented that decreases surgical time, maximizes surgical site exposure, and decreases the risk of infection. It was also designed to enhance patent comfort. ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(98)80094-1
更新日期：1998-08-01 00:00:00
abstract：PURPOSE:Comparison of the after-cataract formation in newborn rabbits implanted with a heparin-surface-modified (HSM) intraocular lens (IOL), a silicone IOL, or no IOL. METHODS:Two groups of 3-week-old rabbits were used. In Group 1 (n = 11), lensectomy was performed in both eyes. One eye was selected at random and an ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(96)80275-6
更新日期：1996-01-01 00:00:00
abstract：:To evaluate the biocompatibility of various materials including a poly(2-hydroxyethyl methacrylate [HEMA])/(6-hydroxyhexyl methacrylate [HOHEXMA]) hydrophilic hydrogel intraocular lens (IOL) (Hydroview, Bausch & Lomb). Department of Ophthalmology, Wakayama Medical University, Wakayama, Japan. Ten opacified anterior ca...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(02)01988-0
更新日期：2003-06-01 00:00:00
abstract：PURPOSE:To assess the pain experienced by patients with small pupils during pupil stretching in phacoemulsification performed using topical anesthesia. SETTING:Royal Victoria Eye & Ear Hospital and Mater Misericordiae University Hospital, Dublin, Ireland. METHODS:This was a prospective study that included 26 eyes wit...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2005.02.044
更新日期：2005-09-01 00:00:00
abstract：PURPOSE:To present clinical findings of a cluster of cases of toxic anterior segment syndrome (TASS) after uneventful phacoemulsification cataract surgery. SETTING:Department of Ophthalmology, Akdeniz University, Antalya, Turkey. METHODS:Six eyes of 6 patients developed TASS after uneventful phacoemulsification catar...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2006.05.008
更新日期：2006-10-01 00:00:00
abstract：PURPOSE:To assess the effectiveness of using anterior chamber irrigation of unpreserved lidocaine 1% as anesthesia during cataract surgery. SETTING:Private group ophthalmology practice. METHODS:This study prospectively evaluated 1000 of 1012 consecutive eyes having temporal corneal incision cataract surgery to determ...
journal_title：Journal of cataract and refractive surgery
pub_type： 临床试验,杂志文章
doi：10.1016/s0886-3350(97)80212-x
更新日期：1997-05-01 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：:We report the results in six eyes on which we performed a new surgical method: intrastromal corneal excimer laser photoablation following lamellar corneal keratectomy with a microkeratome. The study was designed to evaluate the clinical and refractive efficacy of the procedure, to assess the behavior of the cornea fol...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)80381-1
更新日期：1992-01-01 00:00:00
abstract：:We used the finite element method to evaluate different capsulotomy techniques. Nucleus expression was simulated in a computer model to visualize stress distribution in the anterior capsule. The finite element model demonstrated that the capsulorhexis edge is strong because of low and uniform stress distribution in th...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)80176-9
更新日期：1994-07-01 00:00:00
abstract：:We describe 2 women with high myopia of -12.0 and -18.0 diopters who presented with myopic macular hemorrhages 1 and 4 days, respectively, after being treated by laser in situ keratomileusis (LASIK). One hemorrhage was related to a pre-existing choroidal neovascularization and the other to the presence of lacquer crac...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(00)00313-8
更新日期：2000-06-01 00:00:00
abstract：PURPOSE:To evaluate the implantation of Artisan/Verisyse phakic intraocular lenses (pIOLs) (Advanced Medical Optics) as an effective and safe method for the correction of high myopia. SETTING:Department of Ophthalmology, John A. Moran Eye Center, University of Utah Medical Center, Salt Lake City, Utah, USA. METHODS:T...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2007.04.009
更新日期：2007-08-01 00:00:00
abstract：:We present a case of traumatic lens subluxation that was evident only when the patient was in the supine position. This case illustrates that a crystalline lens with traumatic zonular rupture can change its position depending on the posture of the patient. If such a lens is suspended by the remaining zonules at the su...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(01)01167-1
更新日期：2002-06-01 00:00:00
abstract：:Recent clinical studies indicate that flurbiprofen, a cyclooxygenase inhibitor, prevents miosis and breakdown of the blood-aqueous barrier during cataract surgery. Yet based on clinical and experimental data, some researchers do not agree that flurbiprofen prevents miosis. We conducted a double-blind clinical study of...
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(13)80013-2
更新日期：1993-09-01 00:00:00
abstract：PURPOSE:To compare the outgrowth of lens epithelial cells (LECs) on 3 types of intraocular lenses (IOLs) to determine the influence of lens material and lens design (optic edge) on this phenomenon. SETTING:Department of Ophthalmology, University of Vienna, Medical School, Vienna, Austria. METHOD:Ninety eyes scheduled...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(00)00861-0
更新日期：2001-06-01 00:00:00
abstract：:We report a case of bacterial keratitis that occurred after implantation of intrastromal corneal ring segments (Intacs). The patient presented with decreased vision, inflammation, and stromal infiltrates localized at the extremity of an Intacs channel 3 months after surgery. Culture were positive for Clostridium perfr...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(02)01484-0
更新日期：2003-02-01 00:00:00
