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 lenses (MA60BM, AcrySof, Alcon Surgical). The IOLs were then immersed in the water chamber of a model eye and MTF and RP under veiling glare light measured. The optical surfaces of the IOLs were examined microscopically. RESULTS:After the IOLs had been folded for 30 seconds, MTF recovered 8 and 6 minutes after unfolding in 20 degrees C 37 degrees C balanced salt solution, respectively. Prolonged folding of 10, 20, and 60 minutes did not affect the final MTF, which was measured 30 minutes after unfolding. However, RP deteriorated after the 60 minute folding. Optic damage was observed after the 20 and 60 minute foldings. Neither parameter changed after the IOLs were tightly folded for 30 seconds; however, both deteriorated slightly after the IOLs were tightly folded for 5 minutes, and minor damage was seen on the optics. With fewer than 10 artificial linear cracks in the central 3 mm of the optic, MTF was not affected; with 20 or fewer, RP was not affected. After forceps pressure on the central optic, MTF recovered within 6 minutes. CONCLUSION:The optical quality of soft acrylic IOLs are not easily affected unless extreme nonphysiological manipulations are applied.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Oshika T,Shiokawa Ydoi
10.1016/s0886-3350(96)80098-8subject
Has Abstractpub_date
1996-01-01 00:00:00pages
1360-4eissn
0886-3350issn
1873-4502pii
S0886-3350(96)80098-8journal_volume
22 Suppl 2pub_type
杂志文章abstract：:Iris fixation of posterior chamber intraocular lenses (IOLs) is a technique that has been recommended for patients in whom a posterior chamber IOL is indicated but there is insufficient capsular support. We present 4 cases of iris-fixated posterior chamber IOLs with complications related to the procedure. Three patien...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2005.06.048
更新日期：2005-12-01 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：: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：PURPOSE:To determine the sex hormone levels in the serum and aqueous humor in patients with age-related cataract and the corresponding hormone receptors in cataract lens epithelial cells (LECs). SETTING:Research Laboratory, International Intraocular Implant Training Center, Tianjin Medical University, Tianjin, China. ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(02)01436-0
更新日期：2003-01-01 00:00:00
abstract：PURPOSE:To demonstrate the proper method for evaluating and reporting astigmatism for individual and aggregate data. SETTING:University of Texas Medical School and Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, USA. METHODS:The surgically induced refractive change (SIRC) was determined for three da...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(98)80075-8
更新日期：1998-01-01 00:00:00
abstract：PURPOSE:To examine the impact of cataract surgery on older adults' self-reported visual difficulties and compare them with those of patients with cataract who declined surgery over the same period. SETTING:Twelve area practices. METHODS:This was a consecutive chart review over a 6-month period. Primary inclusion crit...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章,多中心研究
doi：10.1016/s0886-3350(02)01846-1
更新日期：2003-05-01 00:00:00
abstract：:We report the case of a 49-year-old patient with megalocornea and coexisting corneal astigmatism. The corneal diameter in the right eye was 15.0 mm and in the left eye, 14.9 mm. In both eyes, a nuclear sclerotic cataract developed, with the tendency toward cortical mass swelling in the right eye. The aim of surgical t...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2011.04.023
更新日期：2011-08-01 00:00:00
abstract：:Two patients had uneventful phacoemulsification. After initial improvement, vision deteriorated because of cystoid macular edema (CME). In 1 patient, treatment with systemic nonsteroidal antiinflammatory drugs showed significant improvement in visual acuity but had to be discontinued because of side effects and a rela...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2004.12.067
更新日期：2005-07-01 00:00:00
abstract：:A patient with bilateral Salzmann's nodular degeneration developed a myopic shift of 9 diopters in the right eye and 5 diopters in the left eye after removal of his nodules. This previously unreported complication of removal of peripheral corneal pathology is discussed in light of our current understanding of keratore...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)80658-x
更新日期：1994-11-01 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 evaluate the influence of posterior corneal astigmatism on total corneal astigmatism in patients with 1.00 diopter (D) or more of corneal astigmatism. SETTING:Private practice, Bologna, Italy. DESIGN:Prospective case series. METHODS:Corneal astigmatism was measured using a Scheimpflug camera combined with...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2014.01.046
更新日期：2014-10-01 00:00:00
abstract：PURPOSE:To study the efficacy of posterior optic buttonholing (POBH) through a primary posterior capsulorhexis (PPCCC) to preserve full capsular transparency, and its potential as a routine alternative to standard in-the-bag implantation of sharp-edged optic intraocular lenses (IOLs). SETTING:Department of Ophthalmolo...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2006.02.046
更新日期：2006-06-01 00:00:00
abstract：:The postoperative astigmatic course of unsutured and sutured 4.0 mm scleral pocket incisions was followed for one year in a small pilot study. Initially, with-the-rule changes were noted only in the sutured group; eventually both groups demonstrated a small against-the-rule change that did not differ clinically or sta...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)80607-4
更新日期：1993-07-01 00:00:00
abstract：UNLABELLED:We report a case of immediate severe anaphylaxis to hydroxypropyl methylcellulose (HPMC) on 2 separate occasions during cataract surgery in a 71-year-old patient. Skin prick tests were positive for HPMC, a constituent of Ocucoat and Xylocaine gel, which were administered intraocularly during surgery. Skin pr...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2013.02.034
更新日期：2013-06-01 00:00:00
abstract：:A retrospective analysis of 40 cases of sulcus-fixated one-piece poly(methyl methacrylate) posterior chamber lenses revealed ten cases (25%) that demonstrated oval deformation of the pupil, similar to the condition associated with anterior chamber lenses. This complication was not noted until several weeks after surge...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)80803-6
更新日期：1990-07-01 00:00:00
abstract：PURPOSE:To investigate the position of 3-piece foldable intraocular lenses (IOLs) after piggyback implantation for high hyperopia. SETTING:University Eye Hospital, Johann Wolfgang Goethe University, Frankfurt am Main, Germany. METHODS:Eight eyes of 5 highly hyperopic patients had phacoemulsification and implantation ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2006.08.033
更新日期：2006-12-01 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 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：:Phakic intraocular lens (IOL) implantation is an increasingly popular option in surgical correction of refractive error. To date, reports of long-term morbidity are infrequent in the literature. We encountered 3 patients who experienced corneal decompensation and cataract progression following angle-fixated anterior c...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2005.04.031
更新日期：2005-11-01 00:00:00
abstract：PURPOSE:To compare the performance of the Marco Nidek ARK-530A autorefractor pupillometer function and the Keeler PupilScan II pupillometer (study pupillometer) against the clinical standard NeurOptics PLR-200 pupillometer (standard pupillometer) for measurement of the dark-adapted pupil diameter. SETTING:Department o...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2010.10.059
更新日期：2011-04-01 00:00:00
abstract：:We report 2 intraocular lenses (IOLs) manufactured from the same hydrophilic acrylic polymer by Ioltech that developed optic opacification. In both cases, the postoperative course after implantation of the IOLs was complicated by significant inflammatory reaction with fibrin formation in the anterior chamber. Patholog...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2006.01.076
更新日期：2006-05-01 00:00:00
abstract：PURPOSE:To compare 2-year neodymium:YAG (Nd:YAG) laser capsulotomy rates after bilateral implantation of hydrophobic or hydrophilic multifocal intraocular lenses (IOLs). SETTING:Private practice, southwest France. METHODS:This retrospective study included patients with cataract or clear lenses who had bilateral impla...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2010.01.027
更新日期：2010-07-01 00:00:00
abstract：:Surgery is a major source of errors in patient care. Preventing complications from surgical errors in the operating room is estimated to lead to reduction of up to 41,846 readmissions and save $620.3 million per year. It is now established that poor technical skill is associated with an increased risk of severe advers...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1097/j.jcrs.0000000000000322
更新日期：2020-07-13 00:00:00
abstract：PURPOSE:To evaluate the outcomes of customized corneal crosslinking (CXL) for treatment of progressive keratoconus (KC) using a transepithelial approach with supplemental oxygen. SETTING:Siena Crosslinking Center, Siena, Italy. DESIGN:Prospective interventional case series. METHODS:Twenty-seven eyes of 24 patients (...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1097/j.jcrs.0000000000000347
更新日期：2020-12-01 00:00:00
abstract：PURPOSE:To assess the practical feasibility and signal quality of axial length measurements by partial coherence laser interferometry in silicone oil-filled eyes with previous complicated vitreoretinal surgery. SETTINGS:Department of Ophthalmology, University Cologne, Cologne, Germany. METHODS:Using a Zeiss IOLMaster...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2004.09.049
更新日期：2005-05-01 00:00:00
abstract：:We describe a case of pigmentary dispersion syndrome resulting from secondary piggyback implantation of a 3-piece hydrophobic acrylic squared-edged intraocular lens (IOL) in the ciliary sulcus. The intraocular pressure remained elevated despite pharmacological treatment, with a heavily pigmented trabecular meshwork. T...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2007.01.044
更新日期：2007-06-01 00:00:00
abstract：:We report a case of Candida infection after laser in situ keratomileusis (LASIK) and review the literature for reports of post-LASIK fungal infections. Risk factors may include postoperative surgical intervention and extended use of topical steroids. ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(03)00217-7
更新日期：2003-10-01 00:00:00
abstract：PURPOSE:To evaluate the 12-month U.S. phase II clinical trial results of the Crystalens AT-45 (eyeonics, Inc.) intraocular lens (IOL) used to provide uncorrected distance, intermediate, and near visual acuities in patients having cataract extraction and to compare in a substudy the contrast sensitivity and near visual ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章,多中心研究
doi：10.1016/j.jcrs.2006.02.007
更新日期：2006-05-01 00:00:00
abstract：PURPOSE:To evaluate the effect of neodymium:YAG (Nd:YAG) laser capsulotomy on the visual function in patients with posterior capsule opacification (PCO) and good visual acuity. SETTING:Keio University Hospital, Tokyo, Japan. DESIGN:Observational case series. METHODS:Eyes were evaluated that had previous cataract sur...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2015.11.042
更新日期：2016-03-01 00:00:00
abstract：UNLABELLED:We describe a technique to rescue the continuous curvilinear capsulorhexis (CCC) in cases in which complete radial tears make it impossible to use normal traction forceps. A circumferential path and rapid movement are applied in the plane of the anterior capsule in the direction of the center pupil. This tec...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2012.02.019
更新日期：2012-05-01 00:00:00
