Abstract:
PURPOSE:To evaluate the factors associated with the efficacy of femtosecond laser intrastromal astigmatic keratotomy (AK). SETTING:Moorfields Eye Hospital, London, United Kingdom. DESIGN:Prospective case series. METHODS:Eyes having intrastromal AK for corneal cylinder correction were analyzed. Preoperative biometric parameters included axial length, anterior chamber depth, central corneal thickness, and Ocular Response Analyzer corneal hysteresis (CH) and corneal resistance factor (CRF). Preoperative and 1-month postoperative corneal keratometry was measured using the Topcon KR8100PA topographer-autorefractor. Astigmatic analyses were performed using the Alpins method. RESULTS:The study analyzed 319 eyes of 213 patients with a mean target induced astigmatism of 1.24 diopters (D) ± 0.44 (SD), mean surgically induced astigmatism (SIA) of 0.71 ± 0.43 D, and mean difference vector of 0.79 ± 0.41 D. Two multiple regression models were constructed for SIA prediction. Model 1, based on previous manual limbal relaxing incision parameters, confirmed age and astigmatism meridian (with/against the rule and oblique) to be associated with SIA in addition to AK arc length, AK start depth, and preoperative corneal cylinder magnitude. Model 2, additionally considering other parameters, found only lower CH (-0.06 DC per unit CH), a higher CRF (0.04 D per unit CRF), and the astigmatism meridian to be independent predictors of greater SIA (after adjusting for intrastromal AK arc length, start depth, and preoperative corneal cylinder). With-the-rule astigmatism was associated with a 0.13 D higher SIA than against-the-rule astigmatism, holding all other variables constant. CONCLUSION:Corneal biomechanical parameters and astigmatism meridian were independent predictors of femtosecond laser intrastromal AK efficacy even after adjusting for AK arc length, AK start depth, and preoperative corneal cylinder. FINANCIAL DISCLOSURE:Dr. Stevens is a previous consultant to Optimedica, Inc. which is now part of Abbott Medical Optics, Inc. Drs. Stevens and Day have no financial or proprietary interest in any material or method mentioned.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Day AC,Stevens JDdoi
10.1016/j.jcrs.2015.09.028subject
Has Abstractpub_date
2016-02-01 00:00:00pages
251-7issue
2eissn
0886-3350issn
1873-4502pii
S0886-3350(16)00067-5journal_volume
42pub_type
杂志文章abstract:PURPOSE:To compare uncorrected distance visual acuity (UDVA) and patient-reported outcomes with a new silicone corneal shield and a conventional bandage contact lens (BCL) after photorefractive keratectomy (PRK). SETTING:Stanford Eye Laser Center (Palo Alto, California) and Slade & Baker Vision (Houston, Texas). DESI...
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.2019.08.008
更新日期:2019-12-01 00:00:00
abstract:PURPOSE:To provide mathematical tools for selecting intraocular lens (IOL) power for normal eyes and for "odd" eyes, particularly after corneal refractive surgery. SETTING:Universitats-Augenklinik, Mainz, Germany. METHODS:First, IOL power is selected based on the radii and numerical eccentricity of the cornea, extrac...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2004.09.016
更新日期:2005-03-01 00:00:00
abstract:PURPOSE:To compare the values for corneal power determined by the axial, instantaneous and refractive formulas when imaging normal human corneas using computerized videokeratography. SETTING:Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, USA. METHODS:This prospective clinical trial involved 60 corn...
journal_title:Journal of cataract and refractive surgery
pub_type: 临床试验,杂志文章
doi:10.1016/s0886-3350(98)80009-6
更新日期:1998-09-01 00:00:00
abstract:PURPOSE:To describe the refractive outcomes of triple Descemet membrane endothelial keratoplasty (DMEK). DESIGN:Retrospective case series. METHODS:The study included patients with Fuchs endothelial dystrophy and cataract without coincident pathology. RESULTS:Outcomes of 108 sequential triple DMEK procedures were eva...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2014.09.042
更新日期:2015-06-01 00:00:00
abstract:PURPOSE:To compare the efficiencies of the operative procedures and the reductions in postoperative corneal endothelial cell density (ECD) after cataract surgery using 2 different phacoemulsification tips and their associated cassettes and tubing. SETTING:Wolfe Clinic, Marshalltown, Iowa, USA. METHODS:A randomized pr...
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(99)00201-1
更新日期:1999-10-01 00:00:00
abstract::A lenticule of intrastromal corneal tissue was cut together with 2 small incisions of 3.0 mm using a low-energy femtosecond laser system, FEMTO LDV Z8; 1 incision led to the posterior plane and 1 to the anterior, allowing dissection of the lenticule. When needed, recentering of the treatment area was possible without ...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1097/j.jcrs.0000000000000236
更新日期:2020-09-01 00:00:00
abstract:PURPOSE:To assess the visual outcomes of pseudophakic cystoid macular edema (CME) as compared with age- and copathology-matched control subjects, the costs of treatment and follow-up, and the patient-reported outcomes using the new Cat-patient-reported outcome measures (PROM) 5 questionnaire. SETTING:West Suffolk Hosp...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1097/j.jcrs.0000000000000192
更新日期:2020-06-01 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::The current trend toward implantation of posterior chamber lenses within the capsular bag rather than the ciliary sulcus seems logical in light of the increasing evidence of uveal damage from sulcus fixated posterior chamber lenses. However, long-term, successful capsular bag fixation has not been demonstrated with cu...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(87)80040-8
更新日期:1987-07-01 00:00:00
abstract::The procedure used for an anterior capsulotomy is extremely important for successful in-the-bag intraocular lens insertion. An incision line in the extreme periphery may obscure the margin of the residual anterior capsule and make it difficult to confirm the position of the implanted lens. I describe a U-shaped anteri...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(87)80079-2
更新日期:1987-05-01 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::We describe a method in which constant infusion inflow through an anterior chamber maintainer (ACM) is used to maintain positive intraocular pressure (IOP) during cataract extraction through a self-sealing tunnel incision. A retrospective review of patient records showed that the difference in the incidence of intraop...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(97)80202-7
更新日期:1997-05-01 00:00:00
abstract:PURPOSE:To determine whether microcoaxial phacoemulsification can be reliably and safely performed in a clinical setting and whether a full-sized single-piece acrylic intraocular lens (IOL) can be implanted through a 2.2 mm incision. SETTING:Private practice, Cincinnati, Ohio, USA. METHOD:One hundred consecutive pati...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2006.10.055
更新日期:2007-03-01 00:00:00
abstract:PURPOSE:To retrospectively evaluate the incidence of neodymium: YAG (Nd:YAG) laser capsulotomies for posterior capsule opacification (PCO) in eyes receiving one of two types of capsular-bag-fixated silicone posterior chamber intraocular lenses (IOLs) over 7 years. SETTING:John Moran Eye Center, University of Utah, Sal...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(96)80088-5
更新日期:1996-01-01 00:00:00
abstract::A 67-year-old female developed an endocapsular hyphema after uncomplicated extracapsular cataract surgery. With a neodymium:YAG laser capsulotomy, we drained the blood into the vitreous and restored excellent visual acuity. We hypothesize that endocapsular hyphemas may fail to resorb because of sequestration of the cl...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(13)80316-1
更新日期:1993-05-01 00:00:00
abstract:PURPOSE:To assess the possibility of deriving an optimum intraocular lens (IOL) power after previous successful trabeculectomy. SETTING:Chang Gung Memorial Hospital, Linko, Taiwan. METHODS:The retrospective study included 1 eye of 22 patients who had cataract surgery after successful trabeculectomy performed by 1 sur...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2004.05.016
更新日期:2004-12-01 00:00:00
abstract:PURPOSE:To assess an adherent ocular bandage for clear corneal incisions (CCIs) in cataract surgery using optical coherence tomography (OCT). SETTING:Prince Charles Eye Unit, Windsor, United Kingdom. DESIGN:Case-control study. METHODS:Patients having coaxial microincision cataract surgery (MICS) were allocated to an...
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.2010.06.058
更新日期:2010-11-01 00:00:00
abstract:PURPOSE:To evaluate factors that predict the visual prognosis after cataract surgery in patients with Behçet disease. SETTING:The First Affiliated Hospital of Chongqing Medical University, Chongqing, China. DESIGN:Retrospective clinical study. METHODS:Patients with Behçet disease and complicated cataract had phacoem...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2012.04.027
更新日期:2012-08-01 00:00:00
abstract:UNLABELLED:We describe an approach to transscleral fixation of a foldable posterior chamber intraocular lens (PC IOL) using a 25-gauge pars plana vitrectomy. The technique was used in 80 consecutive eyes, and the results were analyzed for corrected distance visual acuity and safety indicators. Postoperative complicatio...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2015.09.005
更新日期:2015-09-01 00:00:00
abstract:PURPOSE:To evaluate the long-term response of 6 types of 3-piece intraocular lenses (IOLs) by assessing the cellular reaction on the anterior IOL surface, the behavior of posterior and anterior capsule fibrosis, and flare. SETTING:Department of Ophthalmology, Medical School, University of Vienna, Vienna, Austria. MET...
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)01122-1
更新日期:2002-01-01 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 determine whether residual myopia after primary laser-assisted subepithelial keratectomy (LASEK) can be corrected by repeated LASEK and whether this procedure is safe and effective. SETTING:University Eye Clinic, University of Regensburg, Regensburg, Germany. METHODS:Laser-assisted subepithelial keratectom...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(03)00253-0
更新日期:2003-07-01 00:00:00
abstract::Extracapsular cataract extraction with posterior chamber intraocular lens implantation was performed in five phakic eyes filled with silicone oil following vitreoretinal surgery. Silicone oil migration was prevented during surgery using an anterior chamber maintaining system and a self-sealed corneoscleral tunnel inci...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(96)80032-0
更新日期:1996-05-01 00:00:00
abstract:PURPOSE:To investigate the influence of intraocular lens (IOL) tilt and decentration on higher-order aberrations (HOAs) using wavefront analysis. SETTING:Department of Ophthalmology, Nara Medical University, Nara, Japan. METHODS:Forty eyes of 40 patients with a 5.5 mm optic, foldable acrylic IOL were examined 4 to 48...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2004.02.072
更新日期:2004-10-01 00:00:00
abstract:UNLABELLED:We describe the use of a Steri-Strip to exclude lashes in cataract surgery cases in which the lashes impinge on the operative field. The technique has been used in 25 cases and achieved uniformly successful lash exclusion. In 6 cases, the strip became partially dislodged and required repositioning intraopera...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2012.09.005
更新日期:2012-11-01 00:00:00
abstract::A comprehensive survey was sent to the residency directors of 129 ophthalmology training programs in the United States. Forty percent of residents gained experience as primary surgeon during their first year; 43% performed only part of the surgery. Seventy-three percent began learning cataract extraction using the ext...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(02)01380-9
更新日期:2002-12-01 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 assess the repeatability and validity of lens densitometry derived from the Pentacam Scheimpflug imaging system. SETTING:Eye Clinic, Queensland University of Technology, Brisbane, Australia. METHODS:This prospective cross-sectional study evaluated 1 eye of subjects with or without cataract. Scheimpflug mea...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/j.jcrs.2009.03.017
更新日期:2009-07-01 00:00:00
abstract::A prospective study of function and fixation was done on 40 patients implanted with small incision poly(methyl methacrylate), single piece, biconvex intraocular lenses after in situ phacoemulsification cataract extraction via a continuous curvilinear capsulorhexis. A 5.0 mm circular optic (Pharmacia 740 P), 14 mm leng...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(13)80919-4
更新日期:1992-03-01 00:00:00
abstract::Weill-Marchesani patients with cataractous lenses may presnet a surgical challenge in the presence of zonular weakness and microsherophakia. A 52-year-old Weill-Marchesani patient developed zonular dehiscence during capsule contraction after cataract extraction in her right eye. Use of a poly(methyl methacrylate) caps...
journal_title:Journal of cataract and refractive surgery
pub_type: 杂志文章
doi:10.1016/s0886-3350(98)80114-4
更新日期:1998-08-01 00:00:00