Abstract：
PURPOSE:To study the effect of glistenings on the optical quality of a hydrophobic acrylic intraocular lens (IOL). SETTING:David J. Apple Laboratory, Heidelberg, Germany. DESIGN:An in vitro laboratory study. METHODS:An accelerated aging protocol was used to induce glistenings (microvacuoles) in 38 hydrophobic acrylic IOLs. The IOLs were warmed to 45°C and then cooled to 37°C. Image analysis of light-microcopy photographs determined the number and size of microvacuoles (MV). A classification was applied based on the glistening number per mm2: grade 0 (none), grade 1 (1-100), grade 2 (101-200), grade 3 (201-500) and grade 4 (more than 500). An optical bench was used to measure each IOL's modulation transfer function (MTF) and Strehl ratio to evaluate the impact of glistenings on image quality. RESULTS:Glistenings were observed in all IOLs. The mean glistening numbers ± SD (MV/mm2) in grades 1 through 4 were 74 ± 12.7, 142 ± 22.2, 297 ± 76.2, and 1509 ± 311.9, respectively. The mean glistening sizes in grades 1 through 4 were 13.28 ± 3.85 μm, 15.88 ± 2.08 μm, 16.85 ± 3.23 μm, and 15.27 ± 2.25 μm, respectively. Statistical analysis showed that grades 1 through 3 did not change the optical quality; however, in grade 4, the MTF and the Strehl ratio were significantly affected. CONCLUSION:A limited number of glistenings (<500 MV/mm2) had no effect on the image quality. Although statistically significant deteriorations in the MTF and the Strehl ratio were observed in grade 4, the effects found were small and are unlikely to affect the visual quality.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Weindler JN,Łabuz G,Yildirim TM,Tandogan T,Khoramnia R,Auffarth GUdoi
10.1016/j.jcrs.2019.01.025subject
Has Abstractpub_date
2019-07-01 00:00:00pages
1020-1025issue
7eissn
0886-3350issn
1873-4502pii
S0886-3350(19)30059-8journal_volume
45pub_type
杂志文章abstract：PURPOSE:To determine the goodness-of-prediction of the fitting routine by measuring the difference between topographic corneal surfaces and their Zernike reconstructions as a function of polynomial order and optical zone size for various corneal conditions. SETTING:Corneal research laboratory in a university eye cente...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2005.05.025
更新日期：2005-12-01 00:00:00
abstract：PURPOSE:To compare the results of 2 intraocular lens (IOL) implantation techniques in pediatric cataract surgery. SETTING:Labbafinejad Medical Center, Tehran, Iran. METHODS:This contralateral prospective randomized study comprised children with bilateral congenital or developmental cataract. In all cases, anterior ca...
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.2009.02.017
更新日期：2009-06-01 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 examine the psychometric properties of the Visual Activities Questionnaire (VAQ) and each of its subscales in a modern cataract population using Rasch analysis and if flawed, to revise the VAQ and create a valid measure that maximizes its measurement properties. SETTING:Flinders Eye Centre, Flinders Medical...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2009.05.058
更新日期：2009-11-01 00:00:00
abstract：PURPOSE:To evaluate transient increases in intraocular pressure (IOP) after use of high-viscosity viscoelastic agents in cataract surgery. SETTING:Military Hospital, Ulm, Germany. METHODS:In a prospective, randomized study, we evaluated IOP following cataract surgery using two different viscoelastic substances (Healo...
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(96)80224-0
更新日期：1996-03-01 00:00:00
abstract：:The effect of freezing on the growth of rat lens epithelial cells was studied in vitro. We found that 80% of the lens epithelial cells died after freezing at -45 degrees C for two hours and that the surviving cells could grow with the addition of growth factors or when placed on a sheet of type 4 collagen, but not whe...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(88)80122-6
更新日期：1988-05-01 00:00:00
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：:Contrast sensitivity was measured in 25 patients who had a multifocal diffractive intraocular lens and in 23 control patients with a monofocal lens in four simulated light conditions: (1) daylight, (2) daylight with peripheral glare, (3) twilight, (4) twilight with central glare. In normal daylight and twilight, contr...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)80952-2
更新日期：1993-03-01 00:00:00
abstract：:Posterior-assisted levitation is used to retrieve and levitate a sinking nucleus in cataract surgery associated with posterior capsule rupture. After the nucleus is levitated in the anterior chamber, the intraocular lens (IOL) scaffold procedure helps emulsify the nuclear remnants with the phacoemulsification probe an...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2017.06.004
更新日期：2017-07-01 00:00:00
abstract：:Corneal collagen crosslinking (CXL) with riboflavin and ultraviolet-A light is a method for treating progressive keratectasia. The currently accepted treatment parameters induce collagen crosslinking in the anterior 250 to 350 microm of corneal stroma. To protect the endothelium, CXL inclusion criteria require a minim...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2008.10.060
更新日期：2009-04-01 00:00:00
abstract：:Multifocal intraocular lenses (MIOLs) have been designed to provide better uncorrected near visual acuity than monofocal IOLs. However, the increase in depth of focus is combined with a significant decrease in contrast sensitivity and glare. We implanted a new zonal-progressive MIOL (AMO Array) in 31 eyes of 25 patien...
journal_title：Journal of cataract and refractive surgery
pub_type： 临床试验,杂志文章
doi：10.1016/s0886-3350(13)80217-9
更新日期：1995-09-01 00:00:00
abstract：:A 48-year-old man with a history of myopic laser in situ keratomileusis (LASIK) had selective laser trabeculoplasty (SLT) for the treatment of glaucoma in the right eye. He subsequently developed grade 2 diffuse lamellar keratitis (DLK). He then elected to have SLT in the left eye and developed grade 1 DLK. To our kno...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2009.11.024
更新日期：2010-05-01 00:00:00
abstract：:Cataract surgery was performed in a 63-year-old man with bilateral coloboma of the lens. There was no traumatic history, but the patient had lower zonule deficiency and zonular weakness in both eyes, leading us to suspect congenital coloboma of the lens. In the first eye having cataract surgery, it was impossible to r...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/S0886-3350(03)00585-6
更新日期：2004-02-01 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：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 evaluate the actual versus the expected thickness of laser in situ keratomileusis (LASIK) flaps and to determine the factors that affect flap thickness. SETTING:Centre For Sight, Queen Victoria Hospital, East Grinstead, United Kingdom. METHODS:A retrospective analysis of LASIK procedures in 757 consecutive...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2003.09.070
更新日期：2004-05-01 00:00:00
abstract：PURPOSE:To determine the spherical aberration of the cornea in the general population and whether keratometry readings are predictive of corneal spherical aberration values. SETTING:Private comprehensive ophthalmology practice. METHODS:Corneal spherical aberration and keratometry readings were measured in 696 normal ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2007.01.035
更新日期：2007-05-01 00:00:00
abstract：:A 31-year-old female physician with bilateral myopia had unilateral myopic laser in situ keratomileusis in the right eye. The patient was overcorrected with the initial treatment and had 2 subsequent hyperopic treatments, resulting in central corneal irregularity. During the course of treatment, the patient was diagno...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(03)00471-1
更新日期：2003-11-01 00:00:00
abstract：PURPOSE:To evaluate the safety and efficacy of Intacs inserts in keratoconic eyes to alter corneal shape and refractive power and stabilize the progression of corneal ectasia. SETTING:Service d'Ophtalmologie, Bordeaux, France. METHODS:In this prospective study, 57 eyes with clear central corneas that were diagnosed w...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章,多中心研究
doi：10.1016/j.jcrs.2006.01.064
更新日期：2006-05-01 00:00:00
abstract：PURPOSE:To evaluate a new diffractive multifocal intraocular lens (IOL) as an additional (add-on) IOL for sulcus-based implantation. SETTING:Augenklinik am Neumarkt, Köln, Germany. METHODS:In this prospective study, cataract patients had phacoemulsification and IOL implantation. After phacoemulsification, an aspheric...
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.2009.07.014
更新日期：2009-12-01 00:00:00
abstract：PURPOSE:To compare the development of posterior capsule opacification (PCO) and neodymium:YAG (Nd:YAG) capsulotomy rates between 2 microincision intraocular lenses (IOLs) 4 years after surgery. SETTING:Department of Ophthalmology, Medical University of Vienna, Vienna, Austria. DESIGN:Prospective randomized clinical t...
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.2014.09.037
更新日期：2015-05-01 00:00:00
abstract：:A 39-year-old man was referred with complaints of pain, redness, and reduced vision in the left eye after projectile trauma during hammering. Two years previously, anterior chamber phakic intraocular lenses (pIOLs) had been implanted to correct the patient's high myopia. On presentation, the best corrected visual acui...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2007.07.022
更新日期：2007-12-01 00:00:00
abstract：PURPOSE:To evaluate the cleavage plane, corneal cytoarchitecture, and cell vitality of separated corneal epithelial sheets created with 3 commonly used microkeratomes. SETTING:Laboratories of the Regensburg University Medical Center, Regensburg, Germany. METHODS:Mechanical separation of the epithelial layer in 10 por...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2008.06.028
更新日期：2008-10-01 00:00:00
abstract：PURPOSE:To compare short-term clinical, postoperative astigmatism, and uncorrected visual acuity results 2 months after no-stitch phacoemulsification using a temporal clear corneal approach and poly(methyl methacrylate) (PMMA) intraocular lens (IOL) implantation through a 5.2 mm incision with those after no-stitch supe...
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)80352-5
更新日期：1997-03-01 00:00:00
abstract：:We present a case of spontaneous globe luxation and wound dehiscence that developed in a patient with proptosis 1 day after phacoemulsification with posterior chamber intraocular lens implantation. The wound was repaired and a lateral tarsorrhaphy was performed with successful prevention of further luxations. Upon cat...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(03)00056-7
更新日期：2003-09-01 00:00:00
abstract：PURPOSE:To investigate the reliability of corneal topography measurements using the Orbscan II topography system (Bausch & Lomb) not only referring to a normal cohort but also to different refractive conditions. SETTING:Department of Ophthalmology, Ruprecht-Karls-University of Heidelberg, Heidelberg, Germany. METHODS...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2005.01.013
更新日期：2005-08-01 00:00:00
abstract：:A randomized prospective trial compared keratometric and visual outcomes for 196 patients receiving 3.2 mm, 5.0 mm, or 6.0 mm incisions for cataract removal and intraocular lens implantation. There were no statistically significant differences among the groups preoperatively or at one to two days or three to six month...
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)80402-6
更新日期：1993-01-01 00:00:00
abstract：PURPOSE:To prospectively assess the effect of preoperative variables such as pupil size on glare, halos, and visual function after photoastigmatic refractive keratectomy (PARK). SETTING:Department of Ophthalmology, Stanford University School of Medicine, Stanford, California, USA. METHODS:Ninety-three eyes had PARK f...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(01)00871-9
更新日期：2001-06-01 00:00:00
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：: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
