Impact of Posterior Corneal Surface on Toric Intraocular Lens (IOL) Calculation.

Abstract:

PURPOSE:To quantify the impact of posterior cornea on toric IOL calculation accuracy using Placido-topography of anterior corneal surface and Scheimpflug measurements of corneal thickness. MATERIALS AND METHODS:Three-hundred seventy-nine non-selected eyes undergoing cataract surgery with non-toric intraocular lens (IOL) implantation were measured with TMS-5 (Tomey, Japan), IOLMaster (Zeiss, Germany) and Lenstar (Haag-Streit, Switzerland). Anterior, posterior and total measured corneal astigmatisms were compared with astigmatisms from postoperative refraction by calculating vector differences. RESULTS:The average absolute vector difference between anterior astigmatism and total astigmatism combining the measurements of anterior and posterior cornea was only 0.3 ± 0.2 D, with a median of only 0.27 D, but a maximum of 1.5 D. Measurements of anterior cornea alone show a systematic difference from refractive cylinder of 0.3-6 D at 90, 0.38 D at 89° and 0.28 D at 91° (IOLMaster, Lenstar and anterior TMS5), whereas the total TMS5 cylinder differs on average by only 0.14D at 81° from the refractive cylinder. With-the-rule (WTR) corneal astigmatism is slightly reduced and against-the-rule (ATR) astigmatism slightly increased on average when posterior corneal surface is taken into account additionally. This could also be confirmed by the calculation of an average pachymetry of all eyes in which the thinnest central part shows an ellipsoidal shape with horizontally long axis. CONCLUSION:Measurements of posterior cornea have on average only a small but significant impact on the outcome of toric IOL calculation, however, they are nevertheless recommended to detect outliers in which corneal irregularities (e.g. beginning keratokonus) may be overlooked.

journal_name

Curr Eye Res

journal_title

Current eye research

authors

Preussner PR,Hoffmann P,Wahl J

doi

10.3109/02713683.2014.959708

subject

Has Abstract

pub_date

2015-01-01 00:00:00

pages

809-14

issue

8

eissn

0271-3683

issn

1460-2202

journal_volume

40

pub_type

杂志文章
  • 24-hour intraocular pressure and blood pressure levels with latanoprost/timolol fixed combination versus timolol.

    abstract:PURPOSE:To evaluate 24-hr intraocular pressure (IOP) and blood pressure (BP) with timolol or latanoprost/timolol fixed combination (LTFC). METHODS:Patients with primary open-angle glaucoma or ocular hypertension with normal blood pressure were randomized to LTFC, dosed each evening, or timolol dosed twice daily in a c...

    journal_title:Current eye research

    pub_type: 杂志文章,随机对照试验

    doi:10.1080/02713680902850075

    authors: Konstas AG,Pikilidou MI,Tsironi S,Mikropoulos D,Kozobolis VP,Sarafidis PA,Lasaridis AN,Nelson LA,Stewart WC

    更新日期:2009-05-01 00:00:00

  • Inflammatory reaction via arachidonic acid cascade after intravitreal injection of endothelin-1.

    abstract:PURPOSE:To investigate the characteristics of anterior chamber inflammatory reaction induced by intravitreal injection of endothelin-1 (ET-1). METHODS:The time course of changes in aqueous protein concentration (APC) after intravitreal injection of 10(-4), 10(-5), 10(-6) and 10(-7) M ET-1 into rabbit eyes was measured...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.1076/ceyr.17.2.205.5612

    authors: Shoji N,Oshika T,Masuda K

    更新日期:1998-02-01 00:00:00

  • Antiproliferative drugs and human ocular fibroblasts: colorimetric vs. cell counting assays.

    abstract::Utilizing a rapid colorimetric assay that relates cell number to cytoplasmic hexosaminidase activity, we conducted drug-induced cytotoxicity experiments on human ocular fibroblasts cultured from Tenon's capsule specimens. The effects of two different agents--dimethyl sulfoxide (DMSO) or mitomycin C--on the proliferati...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.3109/02713689008999599

    authors: Givens KT,Lee DA,Rothschiller J,Kitada S,Larian B,Cortes A

    更新日期:1990-06-01 00:00:00

  • Family history and reading habits in adult-onset myopia.

    abstract:PURPOSE:A retrospective study was developed to evaluate risk factors in adult-onset myopia. METHODS:Subjects included were 25 to 35 years old. There were 116 non-myopic subjects in the control group and 66 myopic subjects with first lens prescription at age 17 or later. Subjects received a questionnaire about academic...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.1076/ceyr.25.5.309.13494

    authors: Iribarren R,Iribarren G,Castagnola MM,Balsa A,Cerrella MR,Armesto A,Fornaciari A,Pförtner T

    更新日期:2002-11-01 00:00:00

  • Multivariate Analysis to Predict the Horizontal Anterior Chamber Diameter from Other Anterior Chamber Parameters Using Scheimpflug Imaging: Is There a Better Method Than Adding a Fixed Constant?

    abstract:PURPOSE:To evaluate the predictive association between the horizontal anterior chamber diameter (HACD) and other measurements using Scheimpflug imaging, and to assess whether a method superior to using fixed constants can be proposed. METHODS:This hospital-based study was performed in the Cornea and Refractive Surgery...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.3109/02713683.2016.1151529

    authors: Prakash G,Philip R,Bacero R,Srivastava D

    更新日期:2017-01-01 00:00:00

  • Assessment of Optic Nerve Head Pallor in Primary Open-Angle Glaucoma Patients and Healthy Subjects.

    abstract:PURPOSE:To investigate optic nerve head (ONH) pallor quantitatively in patients with primary open-angle glaucoma (POAG) and in healthy subjects, and to examine the relationship to mean deviation in perimetry (MD), cup-disk ratio (CDR), and diameters of retinal vessels. METHODS:A total of 89 POAG patients (67.6 ± 11.1 ...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.1080/02713683.2017.1307415

    authors: Ramm L,Schwab B,Stodtmeister R,Hammer M,Sauer L,Spörl E,Pillunat LE,Terai N

    更新日期:2017-09-01 00:00:00

  • A platelet-activating factor antagonist reduces corneal allograft inflammation and neovascularization.

    abstract::We assessed the role of platelet-activating factor (PAF) in corneal allograft rejection and evaluated the effects of a PAF antagonist on corneal inflammation, cellular infiltration, vascularization, and edema. Rabbits with vascularized corneas served as recipients of allogeneic cornea grafts. Rabbits with normal corne...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.3109/02713689409042408

    authors: Cohen RA,Gebhardt BM,Bazan NG

    更新日期:1994-02-01 00:00:00

  • Diffuse luminance flicker increases retinal vessel diameter in humans.

    abstract:PURPOSE:To determine retinal vessel diameter variations in response to neuronal activity induced by diffuse luminance flicker. METHODS:The diameter of retinal arteries and veins was measured in 9 normal subjects by computer analysis of fundus pictures taken in monochromatic light under normal conditions of illuminatio...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.1076/ceyr.16.12.1252.5021

    authors: Formaz F,Riva CE,Geiser M

    更新日期:1997-12-01 00:00:00

  • Ultraviolet B Radiation Stimulates the Interaction between Nuclear Factor of Activated T Cells 5 (NFAT5) and Nuclear Factor-Kappa B (NF-κB) in Human Lens Epithelial Cells.

    abstract:PURPOSE:Nuclear factor-kappa B (NF-κB) has been proposed as a therapeutic target for the treatment of cataracts. The authors investigated the relationship between nuclear factor of activated T cells 5 (NFAT5) and NF-κB in ultraviolet B (UVB)-irradiated human lens epithelial (HLE) cells. METHODS:Human lens epithelial B...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.1080/02713683.2016.1270327

    authors: Chung I,Hah YS,Ju S,Kim JH,Yoo WS,Cho HY,Yoo JM,Seo SW,Choi WS,Kim SJ

    更新日期:2017-07-01 00:00:00

  • Evaluation of subbasal nerve morphology and corneal sensation after accelerated corneal collagen cross-linking treatment on keratoconus.

    abstract:PURPOSE:The aim of this study was to report on the evaluation of corneal nerve fiber density and corneal sensation after accelerated corneal collagen cross-linking on keratoconus patients. METHODS:The study was performed on 30 keratoconus eyes (30 participants: 16 M, 14 F; 17-32 years old) treated with accelerated col...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.3109/02713683.2014.932387

    authors: Ozgurhan EB,Celik U,Bozkurt E,Demirok A

    更新日期:2015-05-01 00:00:00

  • Target Properties Effects on Central versus Peripheral Vertical Fusion Interaction Tested on a 3D Platform.

    abstract:PURPOSE:We investigated the impact of target properties on vertical fusion amplitude (VFA) using a 3D display platform; the performance of the subjects allowed us to assess how central and peripheral retina regions interact during the fusion process. MATERIAL AND METHODS:Fourteen subjects were involved in the test. VF...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.1080/02713683.2016.1196704

    authors: Zhang D,Neveu P,Fattakhova Y,Ferragut S,Lamard M,Cochener B,de Bougrenet de la Tocnaye JL

    更新日期:2017-03-01 00:00:00

  • Antimicrobial activity and in vitro corneal epithelial toxicity of antimicrobial agents for gram-positive corneal pathogens.

    abstract::We assessed in vitro the antimicrobial activity of four agents (vancomycin, teicoplanin, mupirocin, and imipenem) which are effective against Gram-positive cocci causally associated with bacterial keratitis, as well as their corneal epithelial cytotoxicity. Minimal inhibitory concentrations inhibiting 90% of strains (...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.3109/02713689309001839

    authors: Cutarelli PE,Lazarus HM,Jacobs MR,Lass JH

    更新日期:1993-07-01 00:00:00

  • Retinoic acid receptors and retinoid X receptors in the mature retina: subtype determination and cellular distribution.

    abstract:PURPOSE:In the mature retina retinoic acid (RA) biosynthesis was reported to be regulated by light. RA is of vital importance for proper function of the retina. RA activity is mediated by interaction with nuclear retinoic acid receptors (RARs) and retinoid X receptors (RXRs). The purpose of this study was to determine ...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.1076/ceyr.19.4.338.5307

    authors: Janssen JJ,Kuhlmann ED,van Vugt AH,Winkens HJ,Janssen BP,Deutman AF,Driessen CA

    更新日期:1999-10-01 00:00:00

  • Lectin-affinity isolation of microvillous membranes from the pigmented epithelium of rat retina.

    abstract::The pigmented epithelium of the vertebrate retina phagocytizes the discarded tips of photoreceptors and it is likely that a specific cellular recognition process is involved in this phenomenon. The apical surface of retinal pigmented epithelium (RPE) contains microvilli which interdigitate with the outer segment regio...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.3109/02713688709034868

    authors: Cooper NG,Tarnowski BI,McLaughlin BJ

    更新日期:1987-08-01 00:00:00

  • Age associated decrease of N-acetyl-beta-glucosaminidase activity in the lens epithelial cells from C57Bl/6 mice.

    abstract::Lens epithelial cells were isolated from samples of C57BL/6 and CD-1 mice at different ages between 1 and 5 months, and assayed for the level of N-acetyl-beta-glucosaminidase and their ability to replicate in-vitro. The lens epithelial cells from C57BL/6 mice had a reduced replicative potential compared to other norma...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.3109/02713688208996354

    authors: Lipman RD,Muggleton-Harris AL

    更新日期:1982-01-01 00:00:00

  • Renin mRNA is synthesized locally in rat ocular tissues.

    abstract::Components of the Renin Angiotensin System (RAS) have been detected in ocular tissues and fluids. The source of the ocular RAS proteins is unknown but possibilities include diffusion or leakage from the systemic circulation, specific uptake from the blood, or local synthesis. We have used RT-PCR and in situ hybridizat...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.3109/02713689409047011

    authors: Brandt CR,Pumfery AM,Micales B,Bindley CD,Lyons GE,Sramek SJ,Wallow IH

    更新日期:1994-10-01 00:00:00

  • Purification of aldehyde oxidase from bovine ciliary body.

    abstract::Ocular aldehyde oxidase was purified for the first time from bovine ciliary body cytosol by ammonium sulfate fractionation and successive HPLC using DEAE anion-exchange and hydroxyapatite columns. The purified enzyme was homogeneous by the criterion of sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The mol...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.3109/02713688909025807

    authors: Shimada S,Mishima HK,Nikaido H,Kitamura S,Tatsumi K

    更新日期:1989-07-01 00:00:00

  • Effects of hypoxia and post-hypoxic recovery on chick retinal pigment epithelium potentials and light-evoked responses in vitro.

    abstract:PURPOSE:To determine the cellular mechanisms involved in the hypoxia-induced alteration of the retinal pigment epithelium (RPE) potentials and the light-evoked responses of the RPE in chicks. In addition, to determine the mechanisms involved in the recovery of the RPE during the post-hypoxic period. METHODS:In vitro p...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.1080/02713689808951219

    authors: Nakazaki S,Nao-i N,Sawada A

    更新日期:1998-04-01 00:00:00

  • Rebuilding the Retina: Prospects for Müller Glial-mediated Self-repair.

    abstract::Retinal degeneration is a leading cause of untreatable blindness in the industrialised world. It is typically irreversible and there are few curative treatments available. The use of stem cells to generate new retinal neurons for transplantation purposes has received significant interest in recent years and is beginni...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.1080/02713683.2019.1669665

    authors: Langhe R,Pearson RA

    更新日期:2020-03-01 00:00:00

  • Moxifloxacin and cholesterol combined treatment of pneumococcal keratitis.

    abstract:PURPOSE:Compare the efficacy of treatment of pneumococcal keratitis with cholesterol, moxifloxacin, or a mixture of the two (moxifloxacin/cholesterol). MATERIALS AND METHODS:New Zealand white rabbits were injected intrastromally with 10(6) colony-forming units (CFU) of a clinical keratitis strain of Streptococcus pneu...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.3109/02713683.2010.512114

    authors: Sanders ME,Tullos NA,Taylor SD,Norcross EW,King LB,Tolo I,Marquart ME

    更新日期:2010-12-01 00:00:00

  • A comparison of active ingredients and preservatives between brand name and generic topical glaucoma medications using liquid chromatography-tandem mass spectrometry.

    abstract:BACKGROUND:This work compares the concentration of active ingredients and preservatives in commonly used brand name versus generic glaucoma medications. MATERIALS AND METHODS:Active ingredient and benzalkonium chloride (BAK) concentrations in brand name latanoprost and dorzolamide-timolol were each compared to two gen...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.3109/02713683.2011.631722

    authors: Kahook MY,Fechtner RD,Katz LJ,Noecker RJ,Ammar DA

    更新日期:2012-02-01 00:00:00

  • Usefulness of Polarization-sensitive Optical Coherence Tomography-derived Attenuation-coefficient Images to Visualize the Internal Structure of the Filtering Bleb.

    abstract:PURPOSE/AIM OF THE STUDY:Polarization-sensitive anterior-segmental optical coherence tomography (PS-OCT) is useful to evaluate the filtering blebs after trabeculectomy. However, the attenuation phenomenon of OCT signal disturbs the visibility of intra-bleb's structure and distribution of birefringence; a specific param...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.1080/02713683.2020.1825749

    authors: Kosugi M,Kokubun T,Tsuda S,Yamanari M,Nakazawa T

    更新日期:2020-10-04 00:00:00

  • Quantitative Analysis of Optical Coherence Tomography Angiography Features in Patients with Nonocular Behcet's Disease.

    abstract:PURPOSE:To quantitatively measure the flow, nonflow, density, and foveal avascular zone (FAZ) assessment tool parameters of optical coherence tomography angiography (OCTA) in patients with nonocular Behcet's Disease (BD), and to compare the results with those obtained in healthy controls. METHODS:FAZ parameters, flow ...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.1080/02713683.2018.1530361

    authors: Goker YS,Yılmaz S,Kızıltoprak H,Tekin K,Demir G

    更新日期:2019-02-01 00:00:00

  • Zinc causes an apparent increase in rhodopsin phosphorylation.

    abstract:PURPOSE:Rhodopsin is a zinc-binding protein. We investigated the effect of low concentrations of zinc on the initial phosphorylation of rhodopsin. METHODS:Dark-adapted bovine rod outer segments (ROS) were incubated with (gamma 32P) ATP and 5 mM magnesium in the presence and absence of micromolar amounts of zinc. The R...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.3109/02713689609017650

    authors: Shuster TA,Martin F,Nagy AK

    更新日期:1996-10-01 00:00:00

  • The efficacy of piperacillin/tazobactam in experimental Pseudomonas aeruginosa endophthalmitis: a histopathological and microbiological evaluation.

    abstract:PURPOSE:To investigate the efficacy of intravitreal piperacillin/tazobactam (250 microg/0.1 ml) in the treatment of experimental Pseudomonas aeruginosa endophthalmitis in rabbits. MATERIALS AND METHODS:Twenty New Zealand White albino rabbits were used in this study. The rabbits were divided into two groups (10 rabbits...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.1080/02713680490894180

    authors: Ozkiris A,Evereklioglu C,Esel D,Akgün H,Göktas S,Erkiliç K

    更新日期:2005-01-01 00:00:00

  • Contractile effect of aqueous Pleurotus tuberregium extract on the isolated bovine iris.

    abstract:BACKGROUND:Aqueous extract of Pleurotus tuberregium (PT) has been shown to reduce intraocular pressure (IOP) but the underlying mechanism has not been explained. PURPOSE:To investigate the effect of PT on the bovine iris in vitro in comparison with acetylcholine (ACh). METHOD:Strips of the iris were mounted in 10 ml ...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.3109/02713683.2012.747615

    authors: Akinlabi GA,Asowata OE,Ozolua RI,Akpaja OO,Iyawe V

    更新日期:2013-03-01 00:00:00

  • Do we overestimate the endothelial cell "loss" after descemet membrane endothelial keratoplasty?

    abstract:PURPOSE:To evaluate how corneal deturgescence after Descemet membrane endothelial keratoplasty (DMEK) influences the posterior corneal surface area and the endothelial cell density (ECD) measurements. MATERIALS AND METHODS:A mathematical model was formulated to estimate the increase in posterior corneal surface area a...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.3109/02713683.2012.753095

    authors: Quilendrino R,Höhn H,Tse WH,Chi H,Dapena I,Ham L,Oellerich S,Melles GR

    更新日期:2013-02-01 00:00:00

  • Comparison of Gebauer SLc and Moria CBm Carriazo-Barraquer ALK Microkeratomes for Descemet's Stripping Automated Endothelial Keratoplasty Preparation.

    abstract:PURPOSE:We compared the hand-guided Moria Carriazo-Barraquer (CBm) microkeratome with the fully automatic SLc microkeratome for Descemet's stripping automated endothelial keratoplasty (DSAEK)-lamella preparation and storage, vis-à-vis accuracy, endothelial cell loss (ECL), and lamellar surface roughness (LSR). METHODS...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.3109/02713683.2015.1015141

    authors: Fuest M,Salla S,Walter P,Plange N,Kuerten D,Flammersfeld A,Hermel M

    更新日期:2016-01-01 00:00:00

  • The Silk Protein Sericin Promotes Viability of ARPE-19 and Induced Pluripotent Stem Cell-Derived Retinal Pigment Epithelial Cells in vitro.

    abstract:PURPOSE:Maintaining mature and viable retinal pigment epithelial cells (RPE) in vitro has proven challenging. Investigating compounds that can promote RPE-viability and maturation is motivated by RPE transplantation research, the quest to understand RPE physiology, and a desire to modulate RPE in pathological states. W...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.1080/02713683.2020.1809001

    authors: Khan AZ,Utheim TP,Moe MC,Aass HCD,Sapkota D,Vallenari EM,Eidet JR

    更新日期:2020-09-01 00:00:00

  • Femtosecond laser-assisted retinal imaging and ablation: experimental pilot study.

    abstract:PURPOSE:To investigate retinal imaging and ablation using femtosecond laser pulses. MATERIALS AND METHODS:Two non-amplified near-infrared femtosecond lasers were used to irradiate porcine retinal specimens in vitro. The lasers were used for tissue removal as well as multiphoton laser scanning microscopy. RESULTS:Abla...

    journal_title:Current eye research

    pub_type: 杂志文章

    doi:10.1080/02713680801956452

    authors: Hild M,Krause M,Riemann I,Mestres P,Toropygin S,Löw U,Brückner K,Seitz B,Jonescu-Cuypers C,König K

    更新日期:2008-04-01 00:00:00