Abstract：
:The accuracy of intraocular lens (IOL) power calculation was evaluated in a multicenter study of 822 IOL implantations using the Binkhorst II, Sanders/Retzlaff/Kraff (SRK I, SRK II, SRK/T), Holladay, and Olsen formulas. All but the first of these were optimized in retrospect with calculation of the SRK A-constant, the Holladay surgeon factor, and the Olsen pseudophakic anterior chamber depth (ACD) for each lens style. The ACD prediction of the Olsen formula was based on a previously described regression formula incorporating preoperative ACD, corneal height, axial length, and lens thickness. Among the optical IOL power calculation formulas, the highest IOL power prediction error was found with Binkhorst's and the lowest with Olsen's, which was more accurate than the SRK/T and the Holladay formulas (P < .05). The SRK/T formula was significantly more accurate than the original SRK regression formulas (P < .001). When analyzed for axial length dependence, all formulas showed the least error in the normal range. Error of the Olsen formula was lower than that of the others in the axial length interval 20 mm to 26 mm. No differences in accuracy were found between the optical IOL calculation formulas in eyes with an axial length above 26 mm (P < .05). The accuracy of IOL power calculation can be improved with optical formulas using newer-generation ACD-prediction algorithms.
journal_name
J Cataract Refract Surgjournal_title
Journal of cataract and refractive surgeryauthors
Olsen T,Corydon L,Gimbel Hdoi
10.1016/s0886-3350(13)80140-xsubject
Has Abstractpub_date
1995-05-01 00:00:00pages
313-9issue
3eissn
0886-3350issn
1873-4502pii
S0886-3350(13)80140-Xjournal_volume
21pub_type
杂志文章,多中心研究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 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：PURPOSE:To evaluate the results of photorefractive keratectomy (PRK) to treat undercorrected radial keratotomy (RK). SETTING:Instituto de Oftalmologia Tadeu Cvintal, São Paulo, Brazil. METHODS:A consecutive series of 28 eyes that had PRK to treat residual myopia after RK were studied. Refractive visual and safety dat...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(96)80189-1
更新日期：1996-09-01 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：:There is an increasing interest in the use of the excimer laser in ophthalmology, particularly in refractive surgery. The argon fluoride (193 nm) excimer laser ablates tissue with a high degree of precision and without any mechanical or thermal damage to surrounding structures. In this study, the argon fluoride excime...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)80780-8
更新日期：1990-09-01 00:00:00
abstract：:This article reports the results of using subconjunctival anesthesia (SCA) in cataract surgery. Subjective patient questionnaires and the medical records of 133 consecutive SCA patients who had scleral tunnel phacoemulsification cataract surgery were analyzed. All SCA patients received preoperative medication, but mos...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)80488-9
更新日期：1995-01-01 00:00:00
abstract：PURPOSE:To evaluate the thickness and side-cut angle of laser in situ keratomileusis (LASIK) flaps created by 1 of 3 femtosecond lasers or a microkeratome using Fourier-domain optical coherence tomography (OCT). SETTING:Department of Ophthalmology, Institute of Vision Research, Yonsei University College of Medicine, S...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2010.08.042
更新日期：2011-02-01 00:00:00
abstract：PURPOSE:To study the safety of irrigation with 5-fluorouracil (5-FU) in the Perfect Capsule sealed-capsule irrigation device (Milvella, Ltd., Epping, Australia). SETTING:St. Erik's Eye Hospital, Stockholm, Sweden. METHODS:Thirty 8-week-old rabbits were divided into 4 groups. Clear lens extraction was performed and th...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2007.05.012
更新日期：2007-09-01 00:00:00
abstract：:Cortex removal, especially at the 12 o'clock position, is more difficult with small incision phacoemulsification than with planned extracapsular cataract extraction. In this study an irrigation/aspiration handpiece with changeable tips was used for cortex removal in a large, unselected, consecutive series of small inc...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(13)80911-x
更新日期：1992-05-01 00:00:00
abstract：PURPOSE:To assess visual acuity tolerance to defocus caused by residual refractive errors after clear lens extraction (CLE) with apodized diffractive intraocular lens (IOL) implantation. SETTING:Fernández-Vega Ophthalmological Institute, Oviedo, Spain. METHODS:In this prospective study, 150 eyes of 75 consecutive pat...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2007.10.020
更新日期：2008-02-01 00:00:00
abstract：PURPOSE:To analyze risk factors and management of pupillary intraocular lens (IOL) capture after IOL transscleral fixation. SETTING:Department of Ophthalmology, Seoul National University Hospital, Seoul, South Korea. DESIGN:Retrospective case series. METHODS:A chart review was performed of patients who had transscle...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2017.08.021
更新日期：2017-12-01 00:00:00
abstract：PURPOSE:To analyze the centration of intrastromal ring segments (Intacs, Addition Technology, Inc.) implanted using a femtosecond laser in eyes with keratoconus. SETTING:Kudret Eye Hospital, Ankara, Turkey. METHODS:In a retrospective noncomparative case series, the distance of deviation of the intrastromal ring segme...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2006.11.007
更新日期：2007-03-01 00:00:00
abstract：:We present a patient who had decreased visual acuity and hypotony in the left eye 2 months after removal of an anterior chamber phakic intraocular lens (pIOL). Gonioscopy demonstrated a cyclodialysis cleft at the 6 o'clock position in the region of the IOL footplate, which was confirmed by ultrasound biomicroscopy. A ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2006.09.044
更新日期：2007-03-01 00:00:00
abstract：:Interlenticular opacification (ILO) developed 7 months after secondary acrylic piggyback lens implantation in which the anterior lens was placed in the bag. This resulted in glare and a hyperopic shift. Treating the ILO with the neodymium:YAG laser successfully reduced the glare and corrected the hyperopic shift. ...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(01)00865-3
更新日期：2001-09-01 00:00:00
abstract：PURPOSE:To evaluate the clinical outcomes of laser in situ keratomileusis (LASIK) to correct myopia or myopic astigmatism using the Amaris 750S 750 Hz excimer laser. SETTING:Private LASIK center, Tokyo, Japan. DESIGN:Case series. METHODS:Patients with myopia or myopic astigmatism (spherical equivalent -0.50 to -11.6...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2013.07.043
更新日期：2014-02-01 00:00:00
abstract：PURPOSE:Because the optical performance of eyes implanted with multifocal intraocular lenses will theoretically depend upon the size and position of the pupil relative to the near and distance zones of the lens, we designed a study to determine whether preoperative pupil size is useful in predicting the postoperative p...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(96)80013-7
更新日期：1996-06-01 00:00:00
abstract：PURPOSE:To evaluate intrastromal concentrations of riboflavin with and without epithelium to ensure the efficacy and safety of corneal crosslinking (CXL) by the standard and transepithelial procedures. SETTING:Department of Ophthalmology and Department of Pharmacology G. Segre, Siena University, Siena, Italy. METHODS...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2009.01.009
更新日期：2009-05-01 00:00:00
abstract：PURPOSE:To evaluate the effect of removal and/or exchange of intrastromal corneal ring segments (ICRS, Intacs); specifically the risk factors, degree of reversibility, and visual outcomes. SETTING:Gimbel Eye Centres, Calgary, Edmonton, and Vancouver, Canada. METHODS:Prospective cohort data were collected on 71 eyes t...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(01)01172-5
更新日期：2002-04-01 00:00:00
abstract：PURPOSE:To compare posterior capsule opacification (PCO) after phacoemulsification and implantation of heparin-surface-modified (HSM) poly(methyl methacrylate) (PMMA) intraocular lenses (IOLs) in the capsular bag in patients with diabetes mellitus with that in a control group. SETTING:St. Erik's Eye Hospital, Stockhol...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(99)80132-1
更新日期：1999-02-01 00:00:00
abstract：PURPOSE:To determine the accuracy, repeatability, and reproducibility of measurement of lateral dimensions using the Artemis (Ultralink LLC) very high-frequency (VHF) digital ultrasound (US) arc scanner. SETTING:London Vision Clinic, London, United Kingdom. METHODS:A test object was measured first with a micrometer a...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2006.07.017
更新日期：2006-11-01 00:00:00
abstract：PURPOSE:To evaluate and compare the incidence of cyanopsia using the neutralization method in eyes in which clear or yellow intraocular lenses (IOLs) were implanted. SETTING:Miyata Eye Clinic, Hiroshima, Japan. DESIGN:Retrospective comparative study. METHODS:Patients who had cataract surgery with the implantation of...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2014.07.040
更新日期：2015-04-01 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：PURPOSE:To evaluate the influence of a capsular bending ring (CBR) or tension ring (CTR) on capsular bag shrinkage. SETTING:Department of Ophthalmology, Johannes Gutenberg-University, and Department of Medical Biometry, Epidemiology and Informatics, University of Mainz, Mainz, Germany. METHODS:In 92 eyes of 92 patien...
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.2005.06.046
更新日期：2005-10-01 00:00:00
abstract：PURPOSE:To compare the effect of topical dexamethasone versus ketorolac versus combined dexamethasone-ketorolac after phacoemulsification on choroidal thickness (CT). SETTING:A tertiary university-based hospital Design: Prospective non-randomized comparative case series METHODS:: Ninety-two eyes of 92 patients were as...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1097/j.jcrs.0000000000000477
更新日期：2020-11-12 00:00:00
abstract：PURPOSE:To investigate whether caffeic acid phenethyl ester (CAPE) prevents sodium-selenite-induced cataract. SETTING:Department of Ophthalmology and Biochemistry, Inonu University Medical Faculty, Turgut Ozal Medical Center, Research Hospital, Malatya, Turkey. METHODS:Sixty Sprague-Dawley rat litters were randomized...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(02)01242-7
更新日期：2002-08-01 00:00:00
abstract：:We describe a technique to prevent continuous vitreous hydration during phacoemulsification in eyes with lenticular coloboma. The hydration results from communication between the anterior and posterior chambers from the edges of the colobomatous defect. To avoid this, a valved trocar is placed at the pars plana site a...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2016.10.028
更新日期：2017-02-01 00:00:00
abstract：:A 48-year-old man had simultaneous bilateral photorefractive keratectomy (PRK). The surgeon who performed the PRK did not see the patient in follow-up, and there was confusion regarding the comanaging doctor. Therefore, the patient was not examined immediately postoperatively. Several days later, he was hospitalized f...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(99)00336-3
更新日期：2000-01-01 00:00:00
abstract：PURPOSE:To evaluate the safety and efficacy of hyperopic laser in situ keratomileusis (LASIK) in treating hyperopia caused by overcorrected myopic LASIK and to evaluate a new technique to place the hyperopic treatment after lifting the initial myopic flap. SETTING:Open-access outpatient excimer laser surgical facility...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/s0886-3350(00)00784-7
更新日期：2001-03-01 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 evaluate an algorithm for corneal power estimation in intraocular lens (IOL) power calculation after myopic laser refractive surgery using direct corneal measurements. SETTING:International Vision Correction Research Centre, University of Heidelberg, Heidelberg, Germany. METHODS:Corneal parameters in norma...
journal_title：Journal of cataract and refractive surgery
pub_type： 杂志文章
doi：10.1016/j.jcrs.2009.07.011
更新日期：2010-01-01 00:00:00
